Specifications of TIMKEN Bearing 745A - 742D
Specifications
Series |
745 |
Cone Part Number |
745A |
Cup Part Number |
742D |
Design Unit |
Inch |
Bearing Weight |
20.21 lb9.169 Kg |
Cage Material |
Stamped Steel |
Dimensions
d – Bore |
2 3/4 in69.850 mm |
D – Cup Outer Diameter |
6.125 in155.575 mm |
B – Cone Width |
1.8375 in46.673 mm |
C – Double Cup Width |
3.3750 in85.725 mm |
T – Bearing Width across Cones |
4 in101.6 mm |
Abutment and Fillet Dimensions
R – Cone Backface “To Clear” Radius1 |
0.14 in3.6 mm |
r – Cup Backface “To Clear” Radius2 |
0.06 in1.5 mm |
db – Cone Backface Backing Diameter |
3.46 in88 mm |
Da – Cup Frontface Backing Diameter |
5.64 in143.26 mm |
Aa – Cage-Cone Backface Clearance |
0.05 in1.3 mm |
a – Effective Center Location3 |
-0.47 in-11.9 mm |
Basic Load Ratings
C90 – Dynamic Radial Rating (One-Row, 90 million revolutions)4 |
21900 lbf97600 N |
C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)5 |
147000 lbf656000 N |
C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)6 |
38200 lbf170000 N |
Ca90 – Dynamic Thrust Rating (90 million revolutions)7 |
12200 lbf54400 N |