katalog nr 14 rozdzial 9 info eng - malcus...

TECHNICAL INFORMATIONPage

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1. MATERIALS USED FOR TOOLS PRODUCING

2. THREAD TYPE

3. TAPS

4. DIES

5.2. Gauges R, Rc/Rp

5.1. Gauges NPT

5. GAUGES FOR TAPER THREAD

6. TOOLHOLDER

7. INFORMATION TABLES

8. FORM OF TOOL SELECTION

3.1. Taps construction elements

4.1. Die construction elements

5.2.1. Standards

6.1. Quick-change adapters with safety clutch for taps

5.2.2. Design of gauges

6.2. ER collets mounting

5.2.3. Use of gauges and checking of threads

6.3. Toolholders balance


3.5. High performance machine taps HSSE

3.6. Troubleshooting guide for tapping

4.6. Marking and stamping of dies

3.3. Kinds of chamfers and flutes

4.3. Tolerances of thread being cutted

3.8. Tap connecting dimensions according to ISO and DIN

3.2. Dimension standards


3.7. Marking and stamping of high performance machine taps

3.4. Taps classes and inner thread’s tolerance zone

4.4. Variants of execution and their usage

4.5. Technological recommendations for machine dies

1. MATERIALS USED FOR TOOLS PRODUCING

2. THREAD TYPE

Micrograin solid carbide

VHM High performance machine taps for difficult workable materials, drills, mills

DescriptionMarking

acc. to DINSymbol Destination

High-speed steel

High-speed steel

High-speed powder steel

1.3343S-6-5-2

1.3243S-6-5-2-5

HSS

HSSE(HSCo5)

HSSE-PM

General purpose machine dies,hand taps and general purpose machine taps

High performance machine taps,machine dies, INOX drills

High performance machine taps for difficult workable materials, forming taps

TECHNICAL INFORMATION

9

M

MF

UNC

UNF

G

BSW

BSF

Pg

Tr

NPT

R

Rp

Rc

Metric thread ISO DIN-13

Metric fine thread ISO DIN-13 (symbol used only in catalogues for distinguish from metric coarse thread)

American unified coarse thread ANSI B-1.1

American unified fine thread ANSI B-1.1

Whitworth pipe thread DIN-ISO 228 (identical with BSP)

Whitworth internal cylindrical pipe threadPN-ISO 7/1 and DIN EN 10226-1 (identical with BSPP)

Whitworth internal tapered pipe threadPN-ISO 7/1, DIN EN 10226-2 (identical with BSPT)

Whitworth thread BS-84:1956(in the past - W)

Whitworth fine thread BS-84:2007

Steel conduit thread DIN-40430 (P)

Trapezoidal symetric thread DIN-103

American tapered pipe thread with dryseal material ANSI B-1.20.1

Whiworth external tapered pipe thread ISO-7/1 (identical with BSPT)

W Cylindrical Whitworth thread for gas cylinder valvesPN-60/M-69224 and DIN 477

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THREAD TYPE

W

W80

Rd

Rw

FG

BSC

Ven

Vg

E

UNS

Whit. S

S

EG M

EG UNC

NPSM (NPS)

NPTF

UNEF

UN

Tapered Whitworth thread for gas cylinder valvesPN-82/M-69223 and DIN 477

Cylindrical Whitworth thread for caps for gas cylindersPN-60/M-69225 and DIN 477

Cylindrical round thread PN-84/M-02035 and DIN 405

Bicycle threadPN-65/S-46001

Bicycle thread DIN 79012

Bicycle thread BS 811

Valve threadPN-68/S-83200

Valve threadDIN 7756

Edison electrical thread PN-82/E-02500

American unified special threadANSI B-1.1

Special Whitworth threadBS 84

Trapezoidal non-symetric thread

Metric thread for thread inserts V-Coil

American unified thread for thread inserts V-Coil

American cylindrical pipe thread ANSI B 1.20.1

American tapered pipe thread without dryseal materialANSI B 1.20.4

American unified extra fine thread ANSI B-1.1

American unified thread ANSI B-1.1 (with preferential piches: 4, 6, 8, 12, 16, 20, 28, 32 of threads per inch)

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- total length- thread length- useful length- length of driving square- chamfer length- size of square- thread diameter- shank diameter- neck diameter- (chamfer) point diameter- web (core) diameter- width of land

- relief of chamfer- pitch of thread- angle of thread- rake angle- spiral point angle- angle of spiral fluteschamfer angle- straight flute- spiral flute- spiral point- number of lands

3. TAPS

3.1. Tap construction elements (on example of DIN-371)


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Metric coarsethreads, BSW, UNC

Metric fine threads

BSF, UNF, UNEFPipe threads

G, Pg

Tapin set

Flutes

Nr 1 taper tap 8P

L5

L5 - length of chamfer in threads

L5 L5

- chamfer angle

k kk

ko5

8P

- - - -

o5 5P o7

Nr 2 second tap 4P o10

Nr 3 finishing tap 2P o20 2P o20 2P o20

Straight


3.3. Kinds of chamfers and flutes

Chamfers of hand taps

Dimension standards assign proper taps outer dimensions (total length, thread length, shank diameter and size of square) of nominal threads dimensions.

ISO-529

ISO-2284

DIN-371

DIN-352

DIN-2181

DIN-5157

DIN-376

DIN-374

DIN-5156

Short hand taps for metric coarse threads Norm is also suitable for UNC and BSW threads

Short hand taps for metric fine threadsNorm is also suitable for UNF and BSF threads

Short hand taps and machine taps for pipe threads G, Rp

Symbols Description

Short hand and machine taps for metric coarse threads, metric fine threads, UNC, UNF, BSW, BSF as well as other kinds of threads not provided by the standard, excluding the pipe threads G, Rp, Rc

Short hand and machine taps for pipe threads G, Rp and Rc

Machine taps with reinforced shank for metric coarse and fine threads M3 ÷ M10 and for the threads UNC, UNF, BSW, BSF within the range of nominal diameters 1/8” ÷ 3/8”

Machine taps with reduced shank diameter for metric coarse threads and for the threads UNC and BSW

Machine taps with reduced shank diameter for metric fine threads and for the threads UNF i BSF

Machine taps with reduced shank diameter for the threads G, Rp and Rc


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g2

g2

Chamfer length presented in the quantity of the

thread coils

(6¸8)P o5

(3,5÷5,5)Po8

(2÷3)P o15

(3,5÷5)P o8

(1,5÷2)Po23

Straight

Straightwith spiral point

Straightor

spiral

A

B

C

D

E

Short through holes

Different length through holesin materials forming medium and long chips

Blind holes, through holes in materials forming short chips

Through holes, blind holeswith long thread runout

Blind holes with a very shortthread runout. Used for brass

Kind of flutesChamfer

angle~

Kind of chamfer -symbol

Apart from above there are also used chamfers (12÷16)P for nut taps and 24P for trapezoidal taps.

Because according to the standard, the spiral lead of flute should be the normal number of the R20 series,the real angle g is variable depending on thread diameter. Its value made approximated to the full grades,2

including the spiral lead, is stamped on the tap shank.

Usage

Chamfers of machine taps according to DIN-2197

Flutes of machine taps according to DIN-2197

o o30 <g Ł402

A, D

C, E

B

C, E

D

C

Through- for RH thread

Blind- for LH thread

Medium, long

R15

R25

L15

L40

o o10 Łg Ł202

o o10 Łg Ł202

o o20 <g Ł302

o o30 <g Ł402

o o40 <g <502

R40

R45

ChamferKinds of flutes

Usage

Hole Chip

Straight

Straight with spiral point

Right hand spiral flutes

Left hand spiral flute

ThroughShort, medium

Blind

Through Medium, long

Blind Medium, long


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Tolerance range of the internal thread

Tolerance class of the tap according to standard:

PN - 72M - 57800

PN - 92M - 57800

DIN 802

3.4. Taps classes and inner thread’s tolerance zone

Taps offered in our catalogue are produced in the basic class destined for the most common use of inner thread: for metric thread - 6H, for unified threads UNC, UNF - 2B, for Whitworth threads BSW, BSF - „normal”. Producing in other classes can be done by order.Taps classes (i.e. working part tolerance zones) for metric thread are unified by international and domestic standards. The determined tap class allows to obtain the threads of two or three tolerance zones (see picture and table below).

Internal threadTolerance H limits Tap tolerance limits

Internal threadTolerance G limits

1A ISO1 4H 4H 5H - - -

2A ISO2 6H 4G 5G 6H - -

3A ISO3 6G -

-

-

-

6G

-

7H

7G

8H

8G- - 7G*

*) Polish Standard following the international standard ISO, provides only three classes of taps, whereas the standard DIN 802 introduces additionally the fourth class 7G for “loose” threads. Furthermore, the standard DIN 802 provides the possibility of correction the tap tolerance comparing to the standard demands in case when it is required by the particular machining conditions, e.g. the sort of machining material. In such situation the symbol of the tap’s class with the sign “X”, e.g. 6HX, 6GX is obligatory.

6HT

d2

=0

,2t

ISO1

5H

t=T

D2

(kla

sa

5)

EI=0

D2

4H

0,7

t

0,5

t

0,3

t

0,1

t

d2n

ISO3

ISO2

7G0

,1t

0,3

t

4G

5G

7H

8H

6G

7G

8G

0,5

t

E=0,2t

D2


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3.5. High performance machine taps HSSE

Using of machine taps of general purpose made of the molybdenum steel class HSS, provides good results of work with conventional machines with the standard cutting speed and it is technically and economically justified in many cases of unitary or short and medium serial cutting. There are cases, where using the tool of the higher purchase price results in a significant lowering of producing costs, because of significant increase of cutting speed, tool durability as well as decrease of labour consumption and cost of servicing the work stand.Such possibilities are given by using the high performance machine taps.

Basic features of high performance machine taps

Blade material

Heat treatment

Surface treatment

Working part geometry

High speed steel HSSE, high speed powder steel HSSE-PM and solid carbide VHM characterised with thermal and abrasion resistance

High hardness with preserving good ductility

Using the super hard coatings made of titanium nitride TiN, titanium carbonitride TiCN, titanium-aluminium nitride TiAlN or aluminium- chromium nitide AlCrN and passivation OX

Adopting to each material group with various workability

Max temp. usage

2300 600

3000 400

3300 900

TiN

TiCN

TiAlN

HL

BALINIT A

BALINIT B

BALINITFUTURA NANO

BALINITHARDLUBE

Super hard coatings properties

Symbol

Kind of coatingName Color Hardness

HV 0,05Usage

Titanium nitride

Titanium carbonitride

Titanium-aluminium

nitride

Gold

Blue grey

Grey violet

Dark grey

Universal

Difficult workable,hard grinding

materials

Difficult workable,hard grinding

materials

As the above ones,dry machining

TiAlN +

WC/C3000 800


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800

800 Az

FAN

Ni

Ti

1400

HRC

Ms

AL

GAL

S-NC

NC

WGN

WGN

WGN

GG

For carbon constructional steels, free-cutting steels, low-alloy steels with tensile strength 600 MPa Ł Rm Ł 800 MPa

Type 800 for through holes in soft materials Rm Ł 500 MPa

For high-alloy steels, stainless and acid resistant steels with tensile strength Rm Ł 1000 MPa

For tool steels and difficult workable steels with tensile strength 800 MPa Ł Rm Ł 1200 MPaand for heat-treatable steels up to 38HRC

For nickel and their alloys

For titanium and their alloys

For difficult workable steels, acid resistant steels with tensile strength 1000 MPa Ł Rm Ł 1400 MPa and for heat-treatable steels up to 44HRC

For grey cast iron and spheroidal cast iron

For hardened steels, number next to symbol indicate material hardness HRC scale

For brass and short-chipping bronze

For soft aluminium and soft synthetics

For aluminium alloys Si max. 10%

For synchro tapping on CNC machines with the function of "rigid tapping"for wide range of materials

For productive cutting of wide range materials, forming middle and long chips with tensile strenght Rm <1200 MPa

Forming taps for plastic materials with ductility A ł10% 5

Forming taps for machining materials with a high adhesion

Forming taps for machining materials with reduced toughness

INOX

1300 For constructional steels, alloyed steels with tensile strength 700 MPa Ł Rm Ł 1300 MPa

Material groups and the range of application

Group Destination


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3.6. Troubleshooting guide for tapping

Problem: Tapping oversized threads (no-go gauge is too loose)

Problem: Tapping oversized threads (no-go gauge is loose)

Problem: Tapping undersized threads (go gauge doesn’t enter part way into hole).

You used improper tap for material and thread application.

Cutting speed was too high.

There was cold welding on the flanks of the tap.

Chip packing in flutes occured.

Grinding burr occured.

Incorect fixturing or positioning of part.

Inconsistent feed of tap.

The tolerance of used tap was too high comparing with required class of the thread.

Inapropriate reconditioning of a tap.

The chosen tap has not suitable geometry for multiple regrinds.

A part of tap surface wasn’t renewed while resharpening.

You used inapropriate tap for the tread being made and material being cutted.

The used tap has too small nominal size (tolerance).

You should use a suitable tap for hole type and material being cutted according to the table in catalogue.

You should reduce cutting speed. You should use more coolant/lubrication.

You should change your tool for new one. You should use coated tap. You should use more coolant/lubrication. You should remove damaged teeth.

You should use tap with another flute geometry. There could be necessity of using set of taps .

Remove it with fiber brush.

You should use tap holders with axial and parallel compensation. Try presicely fix cutted element.

You should control the feed while tapping. You should check parameters of CNC machine (program). Check lead screw for backlash. You should use holder with compensation.

You should check marking on the tap and revise if it is suitable for making required class of thread. If you have any problems contact our Technical Representative.

While reconditioning it is required that all ground surfaces maintain the original geometry put on by the manufacturer. For instructive information please contact our Representative.

You should limit the number of tap regrinds.Try to use another tap.

Try to grind the tap again.You should use a new tap.

You should use tap suitable for the hole type and material beingcutted according to the table from catalogue.


Problem: Too low tap life

All reasons stated in next table “torn and rough threads”.

The tap lost its hardness by excess hear during regrinding.

The loss of surface treatment occured after regrinding.

Work hardened drill hole and hole chamfer.

Please read the table “torn and rough threads”

You should change the specification of the grinding wheel.You should use coolant while grinding.

Retreat surface of tap.You should check suitability of surface treatment for materialbeing tapped.

You sholud frequently change or regrind tap drill.You should check proper drilling speed and feed.Please anneal part before tapping.

Problem: Tapping bellmouthed hole (first few threads are oversized)

The tolerance of used tap was too high comparing with required class of the thread.

Inapropriate reconditioning of a tap.


While reconditioning it is required that all ground surfaces maintain the original geometry put on by the manufacturer. For instructive information please contact our Representative.


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Problem: Torn and rough threads


Tap drill was too small.

The tap hole wasn’t deep enough.

Tap drill hole was missing.

Chips packing in flutes occured.

Cold welding on the flanks of the tap (loading).

Overload of the chamfer teeth occured.

Inorrect fixturing or positiong of part.

The tap was hitting the bottom of the hole.

Tapping hard or high tensile materials.


You should use correct size of drill.Please check recommended size drill in catalogue(note that there are different sizes for taps and for forming taps).If you have any problems contact our Technical Representative.

You should check the actual drill depth (the drill could have slipped back into holder).

Please make sure that the tap drill hole is present (that’s common problem in multiple spindle applications on transfer lines).

Try to use tap with different flute geometry (angle).There could be necessity of using set of taps.

You should use a new tap.You should use coated tap.You should use more coolant/lubrication.You should remove damaged teeth.

Use tap with longer chamfer.You should use tap with increased number of flutes to provide more chamfered teeth.

You should use tap holders with axial and parallel compensation.Try presicely fix cutted element.

You should use tap holders with length compensation and with torque overload system.

You should check if yor tap is properly selected.High performance taps HSSE-PM and VHM may be more suitable than HSSE taps.

Problem: Torn and rough threads


Cutting speed was too fast or too slow.

There was cold welding on the flanks of the tap.

Chip packing in flutes occured.

Grinding burr occured.

Tap drill was too small.

There wasn’t proper cooling or lubrication while tapping.

Tool overloading occured due to coarse pitch,hard materials or short chamfers.


Please select proper cutting speed.Improve coolant selection to assist the effectsof tap speed.

You should use a new tap.You should use coated tap.You should use more coolant/lubrication.You should remove damaged teeth.

Try to use tap with different flute geometry (angle).There could be necessity of using set of taps.

Remove it with fiber brush.

You should use correct size of drill.Please check recommended size drill in catalogue(note that there are different sizes for taps and for forming taps).If you have any problems contact our Technical Representative.

Select properly lubricant according to the notes from the catalogue.Use adequate amounts of coolant/lubrication.

There could be necessity of using set of taps.


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DIN-371 C M10 LH 6H L45 HSSE-PM S-NC IK TiCN

3.7. Marking and stamping of high performance machine taps

Example:

machine tap according to the standard DIN-371 for the left thread M10 class 6H with spiral flutes 45° (for blind hole) for tapping on CNC machines, TiCN coated, with internal cooling.

Marking: given in orders, invoices, specifikations, on the packages

Stamping: on the shank of tap

material of blade (see p. 1)

class of thread (see p. 3.4)

spiral flutes symbol (see p. 3.3)

standard symbol (see p. 3.2)

chamfer (see p. 3.3)

size of thread

thread direction

coating symbol (see p. 3.5)

internal cooling

destination (see p. 3.5)


9

producersize of thread

chamfer

thread direction

class of thread

spiral flutes direction

spiral flutes angle

material of blade

destination

order number

internal cooling

FANAR INOX M10x1,5-6H-LH

production year

C R 40 HSSE IKR

123456

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i

aa

L4L4

Ćd2

Ćd2

3.8. Connecting dimensions of taps acc. to ISO and DIN

The below table shows shank diameters and square dimensions differences for taps according to standard ISO-529, DIN-352, DIN-371, DIN-376. These differences should be taken into consideration when choosing the tap holders.


Sizeof thread

ISO-529 DIN-371DIN-352 DIN-376

Ćd2(h9) L4 a(h11) Ćd2(h9)Ćd2(h9) L4L4 a(h12)a(h12) Ćd2(h9) L4 a(h12)

M3

M2,5

M2

3,15 5 3,5 6 2,72,5 2,23,5

2,8

2,8

6

5

2,7

2,1

2,1

4,5M4,5 6 6 8 4,93,55 6 8 4,9 3,5 6 2,7

7 6 8 4,95M5 8 4,964 2,763,5

8 6 8 4,96,3M6 8 4,965 3,464,5

8 6 8 4,97,1M7 8 5,575,6 4,375,5

9 6 8 4,98M8 9 6,286,3 4,986

10 7 8 5,59M9 10 797,1 5,587

11 7 8 5,510M10 11 8108 5,587

10 9 10 79M12 7,1 7109

11,2M14 12 11 12 99 11 12 9

12,5M16 13 12 12 910 12 12 9

14M18 14 14 14 1111,2 14 14 11

14M20 14 16 15 1211,2 16 15 12

16M22 16 18 17 14,512,5 18 17 14,5

18M24 18 18 17 14,514 18 17 14,5

20M27 20 20 19 1616 20 19 16

20M30 20 22 21 1816 22 21 18

22,4M33 22 25 23 2018 25 23 20

25M36 24 28 25 2220 28 25 22

28M39 26 32 27 2422,4 32 27 24

28M42 26 32 27 2422,4 32 27 24

31,5M45 28 36 32 2925 36 32 29

31,5M48 28 36 32 2925 36 32 29

35,5M52 31 40 35 3228 40 35 32

3,55M3,5 5 4 6 32,8 4 6

5

3 2,5

4M4 6 4,5 6 3,43,15 4,5 6 3,4 2,8

5

5

2,1

1,8

5 2,1

8M11 9 8 9 6,26,3 8 9 6,2

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4. DIES

Standards

EN 22 568(in the past DIN 223)

PN-92/M-58070ISO 2568


PN-92/M-58161ISO 4231


PN-92/M-58160ISO 4230

DIN

DIN

DIN

Round dies for metric coarse and fine threads, UNC, UNF,BSW, BSF as well as other threads, excluding the pipe threads G and R

Round dies for pipe threads G

Round dies for tapered pipe threads R

Symbol Destination

4.1. Die construction elements


s

w

z

12

n - chamfer

- outside diameter

- chamfer angle- rake angle

- hole for fixing screw

- chip hole

- nominal thread diameter

- spiral face inclination

- spiral face

- die thicknessh1

Dimension standards assign proper series of dies outer dimensions (diameters, thickness) to nominal standards as well as determine the dimensions connected with dies fixing in the holder (position, size of holes for fixing screws and V-grooves).


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4.3. Tolerances of the thread being cuted

4.4. Variants of execution and their usage

Dies presented in the catalogue are destined for cutting the most often occuring basic tolerances for the given kind of thread: for metric thread 6g, for threads UNC, UNF etc. 2A. We can produce the dies destined for the other tolerance zone if demanded, e.g. for metric threads: 4h for tight threads, 6e for threads under the thin galvanic coatings.

Cutting speed [m/min] Cutting fluidMachining material

4 ÷ 8

8 ÷ 12

4 ÷ 8

3 ÷ 6

2 ÷ 4

3 ÷ 8

15 ÷ 25

10 ÷ 16

5 ÷ 8

7 ÷ 11

11 ÷ 15

12 ÷ 18

8 ÷ 12

Oil

Oil

Oil, special oil

Oil

Special oil

Oil, kerosene

Oil, special oil

Oil

Oil, emulsion

Oil, emulsion

Oil, special emulsion

Special oil, kerosene

Special oil, kerosene

Carbon constructional steels

Free - cutting steels

Carburizing steels

Heat - treatable steels

INOX steels

Grey cast iron

Short chipping bronze

Long chipping brass

Long chipping bronze

Short chipping bronze

Cooper

Long chipping aluminium

Cast aluminium

4.5. Technological recommendations for machine dies

800

800 SPN

Ms

INOX HSSE

HSS

HSS

HSS

Kindof

work

Desti-nation

Executionof

thread

Bladegeometryproperties

Symbolof

executionvariant

Diematerial

Usage

Mach

ine

Hig

h p

erf

orm

an

ce

Cu

tted

Lap

ped

Withoutspiral face

Withspiral face

Withoutspiral face

Withspiral face

Constructional steel, caststeel up to Rm Ł 800 MPa

Steels as above, higher thread quality, for work with automatic lathe

Brass, shortchipping bronze

Stainless steels,cast aluminium, spheroidal cast iron


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4.6. Marking and stamping of dies


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Example: high performance machine die acc. to DIN-EN 22 568 for the thread M12, thread tolerance 6g, for stainless steel

Marking: given in orders, invoices, specifikations, on the packages

Stamping: on diethread tolerance

execution variant

material of blade

size of thread

INO

X

M12 6g

FANAR

HS

SE

material of blade (see p.1)

execution variant (see p.4.4)

standard symbol (see p.4.2)

size of thread

thread tolerance (see p.4.3)

DIN-EN 22 568 M12 6g HSSE INOX

5. GAUGES FOR TAPER THREADS

5.1. Gauges NPT

Flattening equal with workpiece plane

The base depth

Flattening one thread turn above workpiece plane

Minimal tapping depth

Flattening one thread turn below workpiece plane

Maximum tapping depth

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i TECHNICAL INFORMATION

5.2. Gauges R, Rc/Rp

5.2.1. Standards

5.2.2. Design of gauges

Pipe threads where pressure tight joint are made on the threads according to PN-EN 10226-1, PN-EN 10226-2 (ISO7-1:2000). Verification by means of limit gauges according to PN-EN 10226-3 (ISO-7-2:2000)

Gauge No. 1

Taper full form threaded plug gauge.

This gauge is a 1:16 taper full form threaded plug gauge and is suitable

for checking the major diameter (D) and pitch diameter (D ) at the 2

gauge plane of internal parallel (Rp) threads and internal taper

(Rc) threads.

Gauge No. 2

Taper full form threaded plug gauge with relief.

This gauge is a 1:16 taper full form threaded plug gauge with relief of

threads and is suitable for checking the major diameter (D) and pitch

diameter (D ) at the gauge plane, and the accomodation lenght of 2

inernal parallel (Rp) threads and internal taper (Rc) threads.

1 Accomodation lenght: distance from the face of an internally threaded workpiece to the first obstruction which the externally threaded workpiece will encounter on assembly.

Gauge No. 3

Parallel full form threaded ring gauge.

This gauge is parallel full form threaded ring gauge and is suitable

for checking the minor diameter (d ) and pitch diameter (d ) at the 1 2

gauge plane of taper external (R) threads.

Gauge No. 4

Taper plane ring gauge.

This gauge is a 1:16 taper plain ring gauge and is suitable for checking

the major diameter (d) and the related useful thread lenght on

taper external (R) threads.

Gauge No. 5

Taper modified thread form check plug gauge

This check plug gauge is used to check the dimensions of the parallel

threaded ring gauge (gauge No. 3) when manufacturing the ring gauge

and for checking the ring gauge for wear.

Gauge No. 6

Parallel modified thread form check ring gauge

This check ring gauge is provided to check the dimensions of the taper

full form threaded plug gauges (gauge Nos. 1 and 2) when manufacturing

the plug gauges and for checking the plug gauges for wear9

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296

iTECHNICAL INFORMATION

5.2.3. Use of gauges and checking of threads

Checking of internal taper (Rc) and internal parallel (Rp) threads

Stage 1: The taper threaded plug gauge (gauge No. 1) is screwed hand tight into the internal thread. The internal

thread is within the permissible tolerance if the end face of the threaded workpiece lies between the step faces,

or flush with one of the step faces on the gauge.

Key:

1 - end face of work piece flush with tolerance step on gauge,

2 - end face of work piece flush with face of gauge

3 - gauge No. 1

Stage 2: The taper threaded plug gauge with relief (gauge No 2) is screwed hand tight into the internal thread.

The internal thread is within the permissible tolerances if the end face of the threaded workpiece lies between

the step faces, or flush with one of the step faces on the gauge.

Key:





3 - gauge No. 2

3 - gauge No. 3

Note 1 : If a workpiece is rejected by gauge No. 2 but accepted by gauge No. 1, then this may indicate a lack

of accomodation lenght.

Note 2 : A variation in the relative position of the gauge steps of gauge Nos. 1 and 2 in excess of 0,5P but

not greater than 1P is permissible when the manufacturer and purchaser agree that the use of a thread sealant

during assembly of the workpiece will compensate for the increased differnce in the gaugin results.

Note 3 : In the case of Rp threads, if the depth of chamfer at the pitch diameter of the threads is more or

less than 0,5P, then the gauging result will be slightly affected.

Checking of external taper (R) threads

Stage 1: The threaded ring gauge (gauge No. 3) is screwed hand-tight onto the external thread. The external thread

is within the permissible tolerance if the end face of the workpiece lies between the step faces, or flush with one

of the step faces on the gauge.

Key: 9

297


Stage 2: The taper plain ring gauge (gauge No. 4) is positioned hand tight over the external thread. The external

thread is within the permissible tolerances if the end face of the threaded workpiece lies betwee the step faces,

or flush with one of the step faces of the gauge and the roots of all threads within the area covered by the gauge

are fully formed.

Note: A variation in the relative positions of the gauge steps of gauge Nos. 3 and 4 in excess of 0,5P but no greater

than 1P is permissible when the manufacturer and purchaser agree that the use of a thread sealant during

the assembly of the workpiece will compensate for the increased differnce in the gauging results.

Checking of taper plug gauges wear (gauge Nos. 1 and 2)

The pitch diameter of taper threaded plug gauges may be checked with the parallel modified thread form check

ring gauge (gauge No. 6). The major diameter of taper threaded plug gauges shall be checked by direct measurment.

Key:

1 - gauges No 1 and 2,

2 - gauges No 6,

3 - distance from face of step on plug gauge to face of ring gauge shall be l13

(see PN-EN 10226-3:2005 table 16)

4 - this face marked to indicate position of gauge plane

Checking of parallel ring gauges wear (gauge No 3)

Parallel full form threaded ring gauges shall be checked by using the taper modified thread form check plug gauges

at the pitch diameter. The minor diameter shall be checked by direct measurment.

Key:

1 - gauges No 5

2 - gauges No 3

3 - distance from face of step on plug gauge to face of ring gauge shall be l14

(see PN-EN 10226-3:2005 table 16)

4 - this face marked to indicate position of gauge plane

9

Key:



3 - gauge No. 4

298


RECOMMENDED TORQUE VALUES FOR TAPPED MATERIALS WITH RM=1000 MPA

The values given are approximate and may be different depending on specific operating conditions

ThreadM

34568

1012141618202224273033

Torque[Nm]

0,51,2248

16223640637080

125140220240

35

30

25

20

15

10

20 40 60 80 100 120 140 160 180 200

Torque [Nm]

Gw

int M

SHANK RUNOUT MOUNTED IN THE ER COLLET

D L

1-1,61,6-33-6

6-1010-1818-2626-40

6101625405060

S

0,0150,0150,0150,0150,0200,0200,020

L

D

S

6. TOOLHOLDER

6.1. Quick-change adapters with safety clutch for taps

6.2. ER collets mounting

9

299



Definition of unbalance

Unbalance is a displacement of the center of gravity of the rotating mass from the axis of rotation.The rotating mass includes: machine spindle, toolholder, intermediate components (collets), other additional elements of toolholders (nuts) and tool The reason of unbalance is geometric asymmetry, tolerance of, mounting errors, etc. Unbalance causes vibration of the setup, which reduce tool lifeand decrease quality of machining.To limit to an acceptable level of unbalance minimize clearances on the spindle and set suitable tools and toolholders. For most demanding applications it may be necessary not only balancing the toolholders, but also the tools.

Balancing

Balancing is to reduce the unbalance by moving the center of rotating mass in the direction of the axis.This is done by ensuring the proper geometry and adding additional weight or removing.This target can only be achieved to some degree, as will always be residual unbalance.

Balance accuracy classes

From an economic perspective it is not profitable too much tightening of requirements for rotating mass balance. In order to achieve a compromise between the technical and economic aspects, norm ISO 1940 introduced balance accuracy classes. It identifies the types of applications for each class, and so:- G6,3 class is designed for machine parts and general use machines- G2,5 class is designed for high speed machine parts.

G2,5

G1

G0,4

G6,3

G16

G40

100 1000 10000

1

10

100

1000

Acc

epta

ble

resi

dual u

nbala

nce

Udop [m

m o

r gm

m / k

g]

Maximum running speed [rpm]9

300


6.4. Toolholders shanks

MORSE DIN-228

2L

D

A

G

L

D

A1

Taper D A L L G

MK1MK2MK3MK4MK5

12,06517,78023,82531,26744,399

3,55,05,06,56,5

62,075,094,0

117,5149,5

M6M10M12M16M20

DIN-228 BDIN-228 A

53,564,081,0

102,5129,5

1 2

Features:- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Connecting surfaces precision grinded in AT3 class.

DIN DIN-2080

Taper D A K G

DIN30DIN40DIN50

31,7544,4569,85

1,61,63,2

M12M16M24

81012

1

Features:- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Surface of taper precision grinded in AT3 class.- Tool sockets made of 0,007 mm maximum runouts.

GD D

A K

L

1 2

D

50,063,097,5

2 L

68,493,4

126,8

9

301


ISO DIN-69871 A

TR DIN-6327

Taper

Shank

D

D 1

A

B

K

K

G

ISO30ISO40ISO50

TR20TR28TR36TR48

31,7544,4569,85

TR20x1,5TR28x2TR36x2TR48x2

3,23,23,2

568

10

M12M16M24

15,915,915,9

12121418

1

Features:- Toolholders for machines with automatic tool changing- For toolholder mounting in the machine are used pull studs- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Surface of taper precision grinded in AT3 class.- Tool sockets made of 0,007 mm maximum runouts.- Body balanced in G6,3/8000rpm class in standard version

Features:- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Precision grinded shank in g5 tolerance.

G

K

D

D D

D

A

L

L

K B

1

1 2

2

D

50,0063,5597,50

2 L

LD 2

47,8068,40

101,75

8895

118144

20283648

Versions:- DIN-69871 A - shank without internal cooling- DIN-69871 AD - with a central hole- DIN-69871 AD+B - with a central hole and the holes in the flange

9

302


MAS BT JIS B6339

Features:- Toolholders for machines with automatic tool changing- For toolholder mounting in the machine are used pull studs - Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Surface of taper precision grinded in AT3 class.- Tool sockets made of 0,007 mm maximum runouts.- Maximum running speed 10 000 rpm in standard version

HSK DIN-69893 A

Taper D A K G

BT30BT40BT50

31,7544,4569,85

223

M12M16M24

222738

1

G

K

D D

A

L

1 2

D

4663

100

2 L

48,465,4

101,8

G

K

D D

A

L

1 2

Taper D A K G

HSK40HSK50HSK63HSK80

HSK100

3038486075

4,05,06,38,0

10,0

M12x1M16x1M18x1M20x1,5M24x1,5

2026262629

1 D

40506380

100

2 L

2025324050

Features:- Toolholders for machines with automatic tool changing- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Surface of taper precision grinded in AT3 class.- Tool sockets made of 0,007 mm maximum runouts.- Body balanced in G6,3/8000rpm class in standard version- Shank design provides axial positioning accuracy, high rigidity, high torque transfer at high speeds

Versions:- shank without internal cooling- with a central hole- with a central hole and the holes in the flange

9

303


VDI DIN-69880

Shank

VDI20VDI25VDI30VDI40VDI50

Features:- Toolholders are made of chrome-manganese steel, carburized and hardened to 58HRC- Cylindrical surface of shank is grinded in h6 tolerance

CYLINDRICAL DIN-1835

Weldon Shank D

W20W25W32W40W50

2025324050

Features:- Toolholders made of nickel-chromium-molybdenum steel, carburized and hardened to 58HRC.- Cylindrical surface of shank is grinded in h6 tolerance

H

L

D

A

B

D L A B

2025304050

4048556378

2424404048

21,721,729,729,735,7

D

5058688398

2 H

1823,5273645

1

D

1 2

D

o

Versions:- DIN-1835 A - straight cylindrical shank- DIN-1835 B - WELDON: cylindrical shank with flats parallel to the axis of the cylinder- DIN-1835 E - WHISTLE-NOTCH: cylindrical shank with 2 degrees of flattening

D

2o

DIN-1835 EDIN-1835 B

9

304


7. INFORMATION TABLES

THREAD THREAD THREAD THREAD THREAD THREAD

2

2,6 2,5

3 3,5 4

7

5 4,5

8

6

91011

1412

1618202224

M (6H)

Ć d Ć d Ć d Ć d Ć d Ć d

1,60

2,152,05

2,502,903,30

6,00

4,203,80

6,80

5,00

7,808,509,50

12,0010,20

14,0015,5017,5019,5021,00

27

3330

363942

4845

5256606468

RECOMMENDED HOLE’S DIAMETERS FOR TAPPING WITH TAP

24,00

29,5026,50

32,0035,0037,50

43,0040,50

47,0050,5054,5058,0062,00

4 x 0,5

6 x 0,75 5 x 0,5

8 x 0,75 8 x 1 9 x 1

12 x 1,25

10 x 1,2510 x 1

12 x 1,5

12 x 1

14 x 1,2514 x 1,5

18 x 1

16 x 1

18 x 1,518 x 220 x 1

16 x 1,5

20 x 1,520 x 2

MF (6H)

22 x 1

22 x 222 x 1,5

24 x 124 x 1,524 x 2

30 x 2

27 x 227 x 1,5

30 x 3

30 x 1,5

33 x 1,533 x 233 x 3

3,50

5,204,50

7,207,008,00

10,80

8,809,00

10,50

11,00

12,8012,5015,00

17,0014,50

16,5016,0019,0018,5018,0021,00

20,0020,50

23,0022,5022,00

28,00

25,0025,50

27,00

28,50

31,5031,0030,00

G-1/16”

G-1.3/8”

G-1.1/8”G-1.1/4”

G-1.1/2”G-1.3/4”

G

G-1/8”G-1/4”G-3/8”G-1/2”G-5/8”G-3/4”G-7/8”G-1”

G-2”

6,70

11,808,80

15,2519,0021,00

35,50

28,2524,50

39,50

30,75

42,0045,0051,0057,00

UNC (2B)

No 5 - 40

1/4 - 20

No 6 - 32No 8 - 32No 10 - 24No 12 - 24

5/16 - 18 3/8 - 16 7/16 - 14 1/2 - 13 9/16 - 12 5/8 - 11 3/4 - 10

1.1/8 - 7 1 - 8 7/8 - 9

1.1/4 - 7 1.3/8 - 6 1.1/2 - 6 1.3/4 - 5 2 - 4.1/2

2,60

3,502,70

3,804,505,10

10,70

7,906,50

12,30

9,30

13,5016,5019,50

25,0022,25

28,0030,7034,0039,5045,00

No 5 - 44

1/4 - 28

No 6 - 40No 8 - 36No 10 - 32No 12 - 28

5/16 - 24 3/8 - 24 7/16 - 20 1/2 - 20 9/16 - 18 5/8 - 18 3/4 - 16

1 - 12 7/8 - 14

UNF (2B)

2,70

3,503,00

4,104,655,50

8,506,90

9,9011,50

14,5013,00

17,5020,5023,30

29,501.1/4 - 1225,501.1/8 - 12

32,501.3/8 - 1236,001.1/2 - 12

1/8 - 40 3/16 - 24 1/4 - 20 5/16 - 18 3/8 - 16 7/16 - 14

5/8 - 11

1/2 - 12 9/16 - 12

3/4 - 1011/16 - 11

1.1/8 - 7 1.1/4 - 7 1.1/2 - 6 1.3/4 - 5 2 - 4.1/2

BSW (normal)

7/8 - 9 1 - 8

2,50

5,103,60

6,507,909,25

15,00

12,0010,50

16,50

13,50

19,2522,0024,75

33,5028,00

39,0044,50

36 x 236 x 1,5

36 x 339 x 1,542 x 1,542 x 242 x 345 x 245 x 348 x 248 x 348 x 452 x 252 x 352 x 4

34,0034,50

33,0037,5040,5040,0039,0043,0042,0046,0045,0044,0050,0049,0048,00

THREAD THREAD THREAD THREAD THREAD

M (6HX)

Ć d Ć d Ć d Ć d Ć d

MF (6HX) G (-X) UNC (2BX) UNF (2BX)

RECOMMENDED HOLE’S DIAMETERS FOR TAPPING WITH FORMING TAP

2

2,5 2,2

3 3,5 4 5

8 6

10

1412

16

1,83

2,302,00

2,803,253,704,65

7,405,55

9,30

13,0011,20

15,00

M 12 x 1M 12 x 1,25M 12 x 1,5M 16 x 1,5M 18 x 1,5M 20 x 1,5

M 8 x 1M 10 x 1M 10 x 1,25

11,511,411,315,317,319,3

7,559,59,4

2,93,153,84,355,757,38,8

No 10-24No 12-24 1/4-20

No 5-40No 6-32

No 8-32

5/16-183/8-16

10,311,8

5/8-11 14,8

7/16-141/2-13

No 10-32No 12-28 1/4-28

No 5-44No 6-40

No 8-36

5/16-24 3/8-24

2,93,23,854,455,15,957,459

10,512,1

5/8-183/4-16

15,2518,324,45

7/16-201/2-20

1-12

9,212,415,919,921,925,4

G-1/8"G-1/4"G-3/8"G-1/2"G-5/8"G-3/4"

9

305

TECHNICAL INFORMATIONi

424436383183282925462122181915921415127311571061

909796

637707

579531

424472

386354326303283

245265

40

RELATIONSHIPS OF PERIPHERIAL SPEED AND ROTATIONAL SPEED & TOOL DIAMETER

37143183278524762228185715921393123811141013

928796696

557619

506464

371413

338309286265248

214232

35

318327282387212219101592136411941061

955868796682597

477434398

318354

289265245227212

184199

531

30

2653227419891768159213261137995884796723663568497

398442

362332

265295

241221204189177

153166

25

RELATIONSHIPS OF RESISTANCES Rm, HRC, HB, HV 10

212218191592141512731061

909796707637579531455398

318354

289265

212236

193177163152141

122133

20

19101637143212731146955819716673573

477409358

286318

260239212

174159147136127

110119

521

191

18

159213641194

V = pd n / 1000 [m/min]

1061955796682597531477434398341298

239265

217199

159177

145133122114106

9299

15

12731091

955849764637546477424382347318273239

191212

174159

127141

116106

98

85

7380

12

91

1

1061909796707637

455398354318289265227199

159177

145133

106

531

118

9688827671

6166

10

849728637566509424364318283255231212182159

127141

116106

8594

7771656157

4953

8

637546477424382318273239212191174159136119106

958780

6471

5853494542

3740

6

53145539835431826522719917715914513311499

8088

7266

5359

4844413835

3133

5

424364318283255212182159141127116106

9180

9471

5853

4247

3935333028

2427

4

318273239212191159136119106

9587806860

4853

4340

3235

2927242321

1820

3

212182159141127106

9180716458534540

3235

2927

2124

1918161514

1213

2

Ćd[mm]

1

3,5

4,5

1011121416

2018

2224

3027

3336394245

5248

3

4

5 6 7 8 9

287293302

317310

327336

345

382

364355

392

373

403413

423

446434

458473484497514

596

544527

560

615

578

720

639655675

940900864829800773

745

698

273278287

301295

311319

328

363

346337

372

354

383393

402

424413

435449460472488

567

517501

532

584

549

607622

282930

3231

3334

35

39

3736

40

38

4142

43

4544

4647484950

55

5251

53

56

54

61

575859

686766656463

62

60

920940970

1020995

10501080

1110

1230

11701140

1260

1200

13001330

1440

1360

14801530157016201680

1980

18901730

1845

2050

1910

2140

1400

100105110

130

120115

135

125

140145150

160155

165170

175180185

210

195190

200

215

205

240

220225230

280272268260255250245

235

758085

9590

717681

9086

95100105

124

114109

128

119

133138143

152147

157162

166171176

199

185181

190

204

195

228

209214219

266258255247242238233

223

272625242322

240255270

305285

320335350

415

385370

430

400

450465480

510495

530545

560575595

675

625610

640

690

660

770

705720740

900870860835820800785

755

HV 10HV 10 HBHB HRCHRCRm

[MPa]Rm

[MPa]HV 10HBHRCRm

[MPa]

9

306


LIMIT DIMENSIONS OF PITCH DIAMETER - INTERNAL THREAD

ISO metric thread American unified thread UNC and UNF

Whitworth pipe thread G

6HNominal

sizeNominal

size

Nominal size

2B2B / 3B

minMF UNFM UNC

M 2M 2,2M 2,5M 3M 3,5M 4

M 4,5M 5

M 6

M 7M 8

M 9M 10

M 12

M 14

M 16

M 18

M 20

M 22

M 24

M 27

M 30

M 33

M 36

M 39

M 42

M 45

M 48

M 52

1,7401,9082,2082,6753,1103,5453,6754,0134,4804,6755,3505,5136,3507,1887,5137,3508,1889,0269,5139,3509,188

10,86311,35011,18811,02612,70113,02614,70115,02616,37617,02618,37619,02618,70120,37621,02622,05123,02622,70125,02625,05126,02625,70127,02627,72729,02628,70131,02630,70130,72732,02631,70133,40235,02634,70134,05136,40238,02637,70137,05139,02639,07741,02640,70140,05142,07744,02643,70143,05144,75247,02646,70146,05148,75250,70150,051

1,8302,0032,3032,7753,2223,6633,7754,1314,6054,7755,5005,6456,5007,3487,6457,5008,3489,2069,6459,5009,348

11,06311,51011,36811,21612,91313,21614,91315,21616,60017,21618,60019,21618,91320,60021,21622,31623,22622,92525,22625,31626,22625,92527,22628,00729,22628,92531,22630,92531,00732,22631,92533,70235,22634,92534,31636,70238,22637,92537,31639,22639,39241,22640,92540,31642,39244,22643,92543,31645,08747,23846,93746,33149,08750,93750,331

1,7591,9282,2282,6953,1313,5673,6954,0354,5044,6955,3765,5356,3767,2167,5357,3768,2169,0589,5359,3769,216

10,89711,37611,21611,05812,73913,05814,73915,05816,41817,05818,41819,05818,73920,41821,05822,09923,05822,73925,05825,09926,05825,73927,05827,78029,05828,73931,05830,73930,78032,05831,73933,46235,05834,73934,09936,46238,05837,73937,09939,05839,14041,05840,73940,09942,14044,05843,73943,09944,82347,05846,73946,09948,82350,73950,099

1,8492,0232,3232,7953,2433,6853,7954,1534,6294,7955,5265,6676,5267,3767,6677,5268,3769,2389,6679,5269,376

11,09711,53611,39611,24812,95113,24814,95115,24816,64217,24818,64219,24818,95120,64221,24822,36423,25822,96325,25825,36426,25825,96327,25828,06029,25828,96331,25830,96331,06032,25831,96333,76235,25834,96334,36436,76238,25837,96337,36439,25839,45541,25840,96340,36442,45544,25843,96343,36445,15847,27046,97546,37949,15850,97550,379

2,7642,7992,9903,0943,6503,7084,1384,3104,7984,8975,5245,7617,0217,2498,4948,8379,934

10,28711,43011,87412,91313,37114,37614,95817,39918,01920,39121,02623,33824,02626,21827,20129,39330,37632,17433,55135,34936,72641,15147,135

7,1429,147

12,30115,80619,79321,74925,27929,03931,77036,41840,43142,84446,32452,26758,135

2,8472,8803,0843,1803,7463,8004,2474,4094,9105,0045,6485,8707,1557,3718,6398,961

10,08910,42411,59512,01713,08613,52014,55915,11017,59518,18420,59921,22423,56121,22426,45721,22429,63724,21932,43827,39935,61636,93741,44547,450

2,8272,8603,0583,1573,7213,7774,2194,3844,8824,9765,6165,8427,1207,3418,6038,931

10,05110,39111,55211,98113,04313,48214,51415,07217,54418,14320,54621,18123,50524,17126,39827,35129,57630,52832,37233,70635,55036,88641,37247,371

7,2499,254

12,42615,93119,93521,89125,42129,18131,95036,59840,61143,02446,50452,44758,315

M 4x0,5

M 5x0,5

M 6x0,75

M 8x0,75M 8x1

M 10x0,75M 10x1M 10x1,25

M 12x1M 12x1,25M 12x1,5

M 14x1,5

M 16x1,5

M 18x1,5

M 20x1,5M 20x2

M 22x1,5

M 24x1,5M 24x2M 26x1,5

M 27x1,5M 27x2M 28x1,5

M 30x1,5M 30x2M 32x1,5M 32x2

M 33x1,5M 33x2

M 36x1,5M 36x2M 36x3

M 39x1,5M 39x2M 39x3M 40x1,5

M 42x1,5M 42x2M 42x3

M 45x1,5M 45x2M 45x3

M 48x1,5M 48x2M 48x3

M 52x2M 52x3

min

min

min

6G 3B

max maxmax max

max

No 5 - 40

No 6 - 32

No 8 - 32

No 10 - 24

No 12 - 24

1/4 - 20

5/16 - 18

3/8 - 16

7/16 - 14

1/2 - 13

9/16 - 12

5/8 - 11

3/4 - 10

7/8 - 9

1 - 8

1.1/8 - 7

1.1/4 - 7

1.3/8 - 6

1.1/2 - 6

1.3/4 - 52 - 4.1/2

No 5 - 44

No 6 - 40

No 8 - 36

No 10 - 32

No 12 - 28

1/4 - 28

5/16 - 24

3/8 - 24

7/16 - 20

1/2 - 20

9/16 - 18

5/8 - 18

3/4 - 16

7/8 - 14

1 - 12

1.1/8 - 12

1.1/4 - 12

1.3/8 - 12

1.1/2 - 12

G-1/16”G-1/8”G-1/4”G-3/8”G-1/2”G-5/8”G-3/4”G-7/8”G-1”G-1.1/8”G-1.1/4”G-1.3/8”G-1.1/2”G-1.3/4”G-2”

9

307

TECHNICAL INFORMATIONi

9

D1L

2

D3

L2

D2

1:1

6

D3

L m

in.

D4 min.

L1

Hole with hollow is recommended if possible Hollow

1:1

6

INITIAL HOLE DIAMETERS FOR TAPERED PIPE THREAD RC, NPT

C. Initial hole recommended for blind holesA. Cylindrical hole without the use of a reamer B. Cylindrical hole reamed tapered reamer

Standard taps are suitable for hole shapes from A to C, as far as possible, avoid A shape. For blind holes, fig C, for which it is not possible to achieve given L depth, special taps are required.

Rc

nom. P (tpi) D2 D (JS11)3 L2

1/16 28 6,1 6,56 11,1

1/8 28 8,1 8,57 11,1

1/4 19 10,75 11,45 16,3

3/8 19 14,25 14,95 16,7

1/2 14 17,7 18,63 22,3

3/4 14 23,1 24,12 23,6

1 11 29,1 30,29 28,3

nom. P (tpi) D2 D (+0,05)3 L2

1/16 27 5,95 6,39 11,8

1/8 27 8,3 8,74 11,9

1/4 18 10,75 11,36 17,4

3/8 18 14,15 14,80 17,7

1/2 14 17,45 18,32 23,1

3/4 14 22,8 23,67 23,6

1 11 1/2 28,65 29,69 28,4

1 1/4 1 1/411 1/2 37,35 38,45 28,9

1 1/2 1 1/211 1/2 43,45 44,52 28,9

2 11 1/2 55,45 56,56 29,3

nom. P (tpi) D (JS11)3 L min.1 L min. D min.4

1/16 28 6,56 5,6 9,9+0,37,6

1/8 28 8,57 5,6 9,9 +0,39,6

1/4 19 11,45 8,4 14,6 +0,513,0

3/8 19 14,95 8,8 15 +0,516,5

1/2 14 18,63 11,4 20 +0,520,6

3/4 14 24,12 12,7 21,3 +0,526,0

1 11 30,29 14,5 25,4 +0,532,8

nom. P (tpi) D (+0,05)3 L1 L min. D min.4

1/16 27 6,39 7 10 7,6

1/8 27 8,74 7 10 10

1/4 18 11,36 10,2 14,5 13,1

3/8 18 14,80 10,6 15 16,5

1/2 14 18,32 13,8 19 20,5

3/4 14 23,67 14,2 20 25,8

1 11 1/2 29,69 17 24 32,2

11 1/2 38,45 17,5 24,5 41

11 1/2 44,52 17,5 24,5 47,2

2 11 1/2 56,56 18 25 59,2

NPT

Rc

NPT

Rc

nom. P (tpi) D1 L2

1/16 28 6,15 11,1

1/8 28 8,15 11,1

1/4 19 10,85 16,3

3/8 19 14,3 16,7

1/2 14 17,8 22,3

3/4 14 23,2 23,6

nom. P (tpi) D1 L2

1/16 27 6,15 11,8

1/8 27 8,5 11,9

1/4 18 11 17,4

3/8 18 14,4 17,7

1/2 14 17,8 23,1

3/4 14 23,15 23,6

1 111/2 29,05 28,4

11 1/2 37,8 28,91 1/4

11 1/2 43,85 28,91 1/2

2 11 1/2 55,85 29,3

TAPERED TREAD PROFILE EXTERNAL NPT

1/16

1/8

1/4

3/8

1/2

3/4

1

1.1/4

1.1/2

2

2.1/2

3

3.1/2

4

27

27

18

18

14

14

11.1/2

11.1/2

11.1/2

11.1/2

8

8

8

8

7,950

10,287

13,716

17,145

21,336

26,670

33,401

42,164

48,260

60,325

73,025

88,900

101,600

114,300

9,896

9,967

15,103

15,255

19,850

20,155

25,006

25,616

26,040

26,878

39,908

41,496

42,766

44,036

Thread diameter (inch)

Thread pitch (T.P.I)

Outer diameter of the pipe

(mm)

Total thread lenght (mm)

060

030

030

0 0l 47Convergence

The outer diameter of the pipe

(mm)

Partial thread profileEffective thread lenght

Total thread lenght

Pitch

090 090

308

FORM OF TOOL SELECTIONTAP FORMING TAP DIE

CUSTOMER’S DATA

1. Kind of thread

2. Machine and character of threading

3. Working material

4. Tool

Date: ..........................

Name and company address:

1.1. Size: .....................................

2.1. Type of machine:

3.1.Type of element: .................................................................................................................................

4.1. Nowadays used tool (type): ........................................................................................................................

1.3. Character of threaded hole / threaded bar:

2.2. Method of threading:

3.2. Material (symbol): ..........................................................................

4.2. Vitality: ...................................

4.3. Expected sizes of tool:

5. Notes

3.3. Hardness: ....................HB .......................HRC; 2Extension strength Rm.......................N/mm

3.4. Type of threaded hole/threaded bar:

2.6. Lubrification:

2.3. Forced feed:

Axial float:

Radial float:

Friction clutch:

2.4. Type of holder / handle:

2.5. Cutting speed: .....................m/min, .....................V.p.m.

horizontal

Drilled

hand

yes

yes

yes

yes

vertical

Reamed Other: Casted

automat Lubricant: ..............................................................

no

no

no

no

1.2. Tolerance: .........................

Through Blind Bar Other

Contact person: ........................................................................................................tel..................................................

W=

Date:......................... Representative:..................................... Inq. nr ...............

FANAR fills

309

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