Download - Raj pareek ppt on nbc
A PRESENTATION ONVOCATIONAL SUMMER
TRAININGAT
NATIONAL BEARING COMPANY
Dr . K.n. modi university newai tonk (raj.)
Submitted By: Raj pareek
Slides Content
. Introduction of the company
. Network of Assambly
. Technical collaboration
. Turnover the company
. Costomer of company
. Product of company
. Ball depatment
. Chugrai –ro furnace plant.
. Grinding department
Slide Contents
Assambly department
INTRODUCTION OF THE COMPANY Nbc bearing is the premier brand of
india is leading bearing manufature and exporter company , founded in 1946 by indstrial late shri b.m. birla
Nbc is a pioneer, renowed for excellence in quality and delivery for over 60 years
Nbc product over 100 million bearing each year in more than 1000 sizes serve a host of varried costomer across india and 21 other countries in 5 continents
In from has capacity to develop bearing 10 mm bore to 2000 mm outer diameter . The product range include in ball bearing.
With increasing activities and grant of industrial licenses for other vital industries and manufaturing the name of the company was changed in 1958 to national engineering industries ltd . Retaining its original trade mark NBC
Network of NBC the nei network in all india is
Chennai Gurgaon Jaipur Kolkata Mumbai Newdelhi Newai (gunsi) Pune
Customer of Company Domestic customer. Ashok Leyland. Bharat benz. Bajaj auto. Escort tractors. Hero motocop. Honda motorcycls. Indian railwayMaruti suzukiTata motors
International customers
Amsted rail (usa) Agrale brazil Bonfiglio oil (itly) Con met (usa) Nissan (japan) Rio tinto( australia) daimler (germany)
Product of Company Ball bearing a ball bearing is
type of rolling element bearing that uses ball to maintain the separation between the bearing races .
The purpose of a ball bearing is to reduce rotational friction and support radial and axial load.
Ball Bearing
Parts of ball bearing
Ourte ring Inner ring Steel balls Cage
CHOUGAI-RO FURNACE PLANT
Chougai-ro is a re heating furnace highly evaluated technology world wide since chougai ro reheating furnace unit major iron works and copper elongation company . This model suitable all rolling mills such as hot rolled , section steel ,wire rod , pipes mills.Hardening furnace- a rotational drum seeling extraction dedicated beam are adopted for the stable transfer uniform heat in steel pipes.
Work of chugai ro The Hardness of steel is achived by a
chougai ro heat treatment process in which is steel microstructure manipluted by cycle heating and quick cooling obtain the optium hardness range the steel rings. Usually the hardenss range are 60 to 65 on rockwell c hardness scale.
Steel rings are suddenly quenched by quneching oil and air steel materials formes extremely hard & stronge.
CHUGAI RO FURNACE PLANT
BY AIR
JOB
PRE -WASHING
(KAROSINE)
ZONE 1 840`C
ZONE 2 850` C
ZONE 3 850`C
ZONE 850` C
HINEING FURNACE
115`cQUENCHING OIL TANK
gas
By air cooling
Chugai ro furnace
Temperi-ng
furnace170`c
90 minute
By coolin-g air
By air cooling
Grinding process
Outer grinding. Face . OD. Track Face grinding –G 81Machine Name- nisseiB.N. 6203 by using outer wheel face making.Machine temprature are maintain by air conditionar . 25~30 c abrassive wheel.
Outer Ring Grinding OD Grinding - grinding wheel and regulate
wheel are use to grind od. B.n. 6203By using coolant in cutting tool be od grind by wheel.ProceesHopper ir sensor grinding wheel
After rough od we do finish Od . Rough Od
Grinding process
Grinding process
Outer track grinding Machine name- IZUMI (KN 2130) B.n. 6204
HOPPER CONVEYOUR IR SENSOR OUTER TRACK GRINDING
Conyeour
conyeour
Conve-yo-ur Outer track
super grinding
DEMAGEN--ET
Washing panel ASSAM
-BLY
OUTER TRACK GRINDINGGRINDING small wheel Are used make outer track.HopperIr proximatry sensorGrinding wheelSpindleUpper armLower arm
Izumi (kN2130)
Outer track super grinding In Outer track super grindingWe are use to stone to give a Super pollish of outer track.In outer track super grinding We are use two types of stone.1. Yellow2. GreenCnc machine are useLeft headRight head
Inner rings grinding
Inner rings -1 Track2 BoreInner track grinding-1. work head2. Wheel3. Dressor4. Arm5. Grinding coolant6. Gauge7. Motor
Inner track grinding NG 10
We use to Abrassive wheel grind inner track. one by one inner are Comes to hopper and grind by abrassiveWheel.After inner track Grinding bearing goEs for demagnet .
Inner bore grinding G(233)
B.N. – 6204MEAN SIZE- (5) MICRON1. SLIDE2. Backing plate3. Spindle4. Loading5. Kova grinding machine6. Air gauge.
Inner track super grindingInner track are use to two types Stone to super pollishing of Inner track.Yellow stone and green stone to Be used pollishing of inner Track.
ASSAMBLY DEPARTMENT
PROCESS OF ASSAMBLY BEARING (NA -13)
MACHINE NAME – CAULKA ASSAMBLY MACHINE.
IR /OR
WASHING
IR /OR TRACK
DIA. cheking
pairing Ball filling
Cage assam-bly
Cage assambly
demagen
et
Ultra sonic washi-ng
Noise checki-ng
Laser marking
Vaccume dryin
-ggreeci-ng
Rubber
seal
Bearing Designation In NBC Rolling bearing part numbers indicate
Bearing type, Dimensions, Tolerance, InternalConstruction & other related sphe Digits & Indications are:-
1stDigit – Bearing Type. 2ndDigit – Width or Height Series3rdDigit – Diamete Series Last 2 Digits – Bore Diameter
Bearing designation in Nbc B.N. 6207 6- DEEP groove BALL BEARING 2- DIAMETER SERIES 2 07- NOMINAL BORE DIAMETER (35) Inside diameter- 35 mm Outside diameter- 72 mm Width – 17mm Zz- double type groov on outer
Application of ball bearingAPPLICATION B.N.
FAN(ORIENT) 6203 BAJAJ 150CC CRANK CASE
6203
BAJAJ PULSAR 220CC (FRONT WHEEL)
6301 (2)
ENGINE FLYWHEEL(EIACHER MOTORS)
6202
APPLICATION OF BALL BEARING
THANK YOU