1. Timken Learn and Lead Customer Training 5/17/2007Radial Ball Product Overview1 Radial Ball Bearing Product Overview Part B Narrated by David Beach Motion Industries Retired

2. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 2 Maximum Capacity Bearings  “Max capacity” bearings carry higher loads than Conrad design, because the filling slots allow addition of extra balls

3. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 3 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 Filling Slot

4. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 4 COMPARISONS SPEED & 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.

5. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 5 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 Thrust Direction Angle 20 to 40 Degrees

6. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 6 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 Thrust Direction Thrust Direction Thrust Direction

7. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 7 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 Bearings 3750 lbs. Dynamic Capacity One 5205K Bearing 5600 lbs. Dynamic Capacity

8. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 8 COMPARISONS SPEED** & LOAD* & LOAD DYNAMIC CAPACITY 205KLight Duty Conrad 3600 lbs. 5205W Double Row 5600 lbs. Note: Figures are to reflect relative capacities. Speed considerations are extremely variable in any calculations

9. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 9 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

10. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 10 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

11. Needle Bearing Product Overview 5/17/2007Radial Ball Product Overview 11 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

12. Needle Bearing Product Overview 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 – 5/17/2007Radial Ball Product Overview 12

13. Timken Learn and Lead Customer Training 5/17/2007Radial Ball Product Overview13 Radial Ball Bearing Product Overview Part B End of Module Close this window and return to the main menu