6972 KOYO Single-row deep groove ball bearings
| Brand Name: | KOYO |
| Model Number: | 6972 |
| Series: | 99000 |
| Cone Part Number: | 99550 |
| Cup Part Number: | 99100W |
| Design Units: | Imperial |
| Bearing Weight: | 14.000 Kg |
| Cage Type: | Stamped Steel |
| d: | 139.700 mm |
| D: | 254.000 mm |
| PDF |
6972 |
Product Details
| Series | 99000 |
| Cone Part Number | 99550 |
| Cup Part Number | 99100W |
| Design Units | Imperial |
| Bearing Weight | 14.000 Kg |
| Cage Type | Stamped Steel |
| d | 139.700 mm |
| D | 254.000 mm |
| B - Cone Width | 66.675 mm |
| C - Cup Width | 47.625 mm |
| B | 66.675 mm |
| R - Cone Backface To Clear Radius1 | 7.110 mm |
| r - Cup Backface To Clear Radius2 | 0.76 mm |
| da - Cone Frontface Backing Diameter | 155.96 mm |
| db - Cone Backface Backing Diameter | 169.93 mm |
| Da - Cup Frontface Backing Diameter | 238.30 mm |
| Db - Cup Backface Backing Diameter | 227.08 mm |
| Ab - Cage-Cone Frontface Clearance | 4.8 mm |
| Aa - Cage-Cone Backface Clearance | 8.6 mm |
| a - Effective Center Location3 | -12.2 mm |
| C90 - Dynamic Radial Rating (90 million revolutions)4 | 38500 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions)5 | 148000 lbf |
| C0 - Static Radial Rating | 231000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 | 26800 lbf |
| K - Factor7 | 1.43 |
| e - ISO Factor8 | 0.41 |
| Y - ISO Factor9 | 1.47 |
| G1 - Heat Generation Factor (Roller-Raceway) | 555.5 |
| G2 - Heat Generation Factor (Rib-Roller End) | 73.5 |
| Cg - Geometry Factor | 0.146 |
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