timken learn and lead customer training 5/17/2007radial ball product overview1 radial ball bearing...

Timken Learn and Lead

Customer Training

5/17/2007 Radial Ball Product Overview 1

Radial Ball Bearing Radial Ball Bearing Product Overview Part BProduct Overview Part B

Narrated by

David BeachMotion Industries Retired

Needle Bearing Product Overview


Maximum Capacity Bearings

“Max capacity” bearings carry higher loads than Conrad design, because the filling slots allow addition of extra balls



Maximum Capacity Bearings

Identified with a “W” Suffix– Example 206W – (205 Max Capacity Bearing)

Same envelope dimension as Conrad Have a retainer Carry high radial load; not for thrust loads Referred to as:

– “Filling slot” bearings– “Gear box” bearings

Filli

ng S

lot



COMPARISONSSPEED & LOAD

& LOAD

LOAD CAPACITY

STATIC DYNAMIC

205K Light Duty Conrad 1760 lbs. 3600 lbs.205W (Max Type) 2750 lbs. 5100 lbs.

Note: Speed Considerations are not shown here because there are many factors to consider. Above is to show

relative numbers when extra balls are added.



Fafnir Angular Contact Ball Bearings

Combined radial and axial (one direction) load capacity

Ball contact angles designed for higher axial loads Contact angles range from 20° to 40° Higher load capacity provides longer service life

than industry standard ball bearings

ThrustDirection

Angle 20 to 40 Degrees



Fafnir Angular Contact Ball Bearings

Single and double row designs for different requirements

– Single-row has high thrust capacity in one direction– Duplex mounting in sets for thrust loads from both

directions increases stiffness

ThrustDirection

ThrustDirection

ThrustDirection



Fafnir Double Row Ball Bearings

Same bore and OD as single row designs

– Width is less than width of two single row bearings

One 7205K Bearings3750 lbs. DynamicCapacity

One 5205K Bearing5600 lbs. DynamicCapacity



COMPARISONSSPEED** & LOAD*

& LOAD

DYNAMIC CAPACITY

205K Light Duty Conrad 3600 lbs.5205W Double Row 5600 lbs.

Note:

Figures are to reflect relative capacities. Speed considerations are extremely variable in any calculations



Thrust Ball Bearings

Axial design supports thrust loads only Low torque generation due to point contact High operating speed range Standard and precision grade available THRUST



Super Precision Ball Bearings

Designed for higher speeds, accuracy and rigidity than standard ball bearings

Super precision ABEC-7 and ABEC-9 tolerances 15° and 25° contact angles for combined radial and

axial loads 60° contact angle for axial loads and ball screw

applications



Fafnir Wide Inner Ring Bearings Single-row ball bearing carries radial, axial and

combination loads Spherical OD provides static misalignment capability Seal designs allow for operation in contaminated conditions Choice of locking device, seals,

retainer, lubricant, and coatings provides best possible product style for a specific application

Curved Outer Race

Locking Collars


BRIEF REVIEW

A. Basic Design of Radial Deep Groove Ball Bearings B. Numbering Systems—Type & Bore, Number Locations C. Identifying by Sight & Dimensions

COMMONALITY:

1.Speed (RPM) 32,000 RPM = 330 MPH Approximately

2.Load – Type & Direction, Combination

3.Lubrication – Grease, Oil, Mist (Temperature, Contamination, Wear)

4.Environment – Seals & Shields

5.Space Limitations

6.Cost Issues

7.Maintenance Procedures

–


Timken Learn and Lead

Customer Training


Radial Ball Bearing Radial Ball Bearing Product Overview Part BProduct Overview Part B

End of ModuleClose this window and return to the

main menu

timken learn and lead customer training 5/17/2007radial ball product overview1 radial ball bearing...

Documents