7238B KOYO Single-row, matched pair angular contact ball bearings
| Brand Name: |
KOYO |
| Model Number: |
7238B |
| Series: |
290000 |
| Cone Part Number: |
EE291175 |
| Cup Part Number: |
291750 |
| Design Units: |
Imperial |
| Bearing Weight: |
29.50 Kg |
| Cage Type: |
Stamped Steel |
| d: |
298.450 mm |
| D: |
444.5 mm |
| PDF |
7238B |
Product Details
| Series |
290000 |
| Cone Part Number |
EE291175 |
| Cup Part Number |
291750 |
| Design Units |
Imperial |
| Bearing Weight |
29.50 Kg |
| Cage Type |
Stamped Steel |
| d |
298.450 mm |
| D |
444.5 mm |
| B - Cone Width |
61.913 mm |
| C - Cup Width |
39.688 mm |
| B |
63.5 mm |
| R - Cone Backface To Clear Radius1 |
7.870 mm |
| r - Cup Backface To Clear Radius2 |
1.52 mm |
| da - Cone Frontface Backing Diameter |
320.04 mm |
| db - Cone Backface Backing Diameter |
331.98 mm |
| Da - Cup Frontface Backing Diameter |
422.40 mm |
| Db - Cup Backface Backing Diameter |
416.05 mm |
| Ab - Cage-Cone Frontface Clearance |
8.6 mm |
| Aa - Cage-Cone Backface Clearance |
10.2 mm |
| a - Effective Center Location3 |
7.6 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 |
51700 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 |
199000 lbf |
| C0 - Static Radial Rating |
312000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 |
33400 lbf |
| K - Factor7 |
1.55 |
| e - ISO Factor8 |
0.38 |
| Y - ISO Factor9 |
1.59 |
| G1 - Heat Generation Factor (Roller-Raceway) |
1580 |
| G2 - Heat Generation Factor (Rib-Roller End) |
245 |
| Cg - Geometry Factor |
0.156 |