Specifications of TIMKEN Bearing 644
Specifications
Series |
635 |
Cone Part Number |
644 |
Design Units |
Imperial |
Cage Type |
Stamped Steel |
C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)1 |
108000 lbf481000 N |
C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)2 |
28000 lbf125000 N |
Abutment and Fillet Dimensions
R – Cone Backface “To Clear” Radius3 |
0.14 in3.6 mm |
da – Cone Frontface Backing Diameter |
3.19 in81 mm |
db – Cone Backface Backing Diameter |
3.43 in87 mm |
Ab – Cage-Cone Frontface Clearance |
0.1 in2.5 mm |
Aa – Cage-Cone Backface Clearance |
0.15 in3.8 mm |
a – Effective Center Location4 |
-0.44 in-11.2 mm |