Specifications of TIMKEN Bearing 687 - 672-B
Specifications
| Series |
675 |
| Cone Part Number |
687 |
| Cup Part Number |
672-B |
| Design Unit |
Inch |
| Bearing Weight |
7.7 lb3.5 Kg |
| Cage Material |
Stamped Steel |
Dimensions
| d – Bore |
4 in101.6 mm |
| D – Cup Outer Diameter |
6.625 in168.275 mm |
| D1 – Flange Outer Diameter |
6.9030 in175.336 mm |
| B – Cone Width |
1.6250 in41.275 mm |
| C – Cup Width |
1.1875 in30.163 mm |
| C1 – Cup Flange Width |
0.2812 in7.142 mm |
| T1 – Bearing Width to Flange |
0.7187 in18.255 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 |
4.41 in112 mm |
| db – Cone Backface Backing Diameter |
4.65 in118 mm |
| Da – Cup Frontface Backing Diameter |
6.34 in160.02 mm |
| Ab – Cage-Cone Frontface Clearance |
0.12 in3 mm |
| Aa – Cage-Cone Backface Clearance |
0.17 in4.3 mm |
| a – Effective Center Location3 |
-0.11 in-2.8 mm |
