Specifications of TIMKEN Bearing 621 - 612-B
Specifications
| Series |
615 |
| Cone Part Number |
621 |
| Cup Part Number |
612-B |
| Design Unit |
Inch |
| Bearing Weight |
5 lb2.3 Kg |
| Cage Material |
Stamped Steel |
Dimensions
| d – Bore |
2.125 in53.975 mm |
| D – Cup Outer Diameter |
4.75 in120.65 mm |
| D1 – Flange Outer Diameter |
5.0272 in127.691 mm |
| B – Cone Width |
1.6250 in41.275 mm |
| C – Cup Width |
1.2500 in31.750 mm |
| C1 – Cup Flange Width |
0.2812 in7.142 mm |
| T1 – Bearing Width to Flange |
0.6562 in16.667 mm |
Abutment and Fillet Dimensions
| R – Cone Backface “To Clear” Radius1 |
0.14 in3.6 mm |
| r – Cup Backface “To Clear” Radius2 |
0.130 in3.3 mm |
| da – Cone Frontface Backing Diameter |
2.48 in63 mm |
| db – Cone Backface Backing Diameter |
2.76 in70 mm |
| Da – Cup Frontface Backing Diameter |
4.35 in110.49 mm |
| Ab – Cage-Cone Frontface Clearance |
0.11 in2.8 mm |
| Aa – Cage-Cone Backface Clearance |
0.13 in3.3 mm |
| a – Effective Center Location3 |
-0.55 in-14 mm |
