Specifications of TIMKEN Bearing 8578 - 8520-B
Specifications
| Series |
8500 |
| Cone Part Number |
8578 |
| Cup Part Number |
8520-B |
| Design Unit |
Inch |
| Bearing Weight |
26.1 lb11.8 Kg |
| Cage Material |
Stamped Steel |
Dimensions
| d – Bore |
9 1/2 in241.3 mm |
| D – Cup Outer Diameter |
12.875 in327.025 mm |
| D1 – Flange Outer Diameter |
13.2460 in336.448 mm |
| B – Cone Width |
2.0625 in52.388 mm |
| C – Cup Width |
1.4375 in36.513 mm |
| C1 – Cup Flange Width |
0.3750 in9.525 mm |
| T1 – Bearing Width to Flange |
1.0000 in25.400 mm |
Abutment and Fillet Dimensions
| R – Cone Backface “To Clear” Radius1 |
0.25 in6.4 mm |
| r – Cup Backface “To Clear” Radius2 |
0.130 in3.3 mm |
| da – Cone Frontface Backing Diameter |
9.96 in253 mm |
| db – Cone Backface Backing Diameter |
10.39 in264 mm |
| Da – Cup Frontface Backing Diameter |
12.40 in312.93 mm |
| Ab – Cage-Cone Frontface Clearance |
0.13 in3.3 mm |
| Aa – Cage-Cone Backface Clearance |
0.24 in6.1 mm |
| a – Effective Center Location3 |
0.3 in7.6 mm |
