Specifications of TIMKEN Bearing A2031 - A2120D
Specifications
Series |
A2000 |
Cone Part Number |
A2031 |
Cup Part Number |
A2120D |
Design Unit |
Inch |
Bearing Weight |
0.21 lb0.095 Kg |
Cage Material |
Stamped Steel |
Dimensions
d – Bore |
0.3125 in7.938 mm |
D – Cup Outer Diameter |
1.2000 in30.480 mm |
B – Cone Width |
0.4246 in10.785 mm |
C – Double Cup Width |
0.8370 in21.260 mm |
T – Bearing Width across Cones |
0.9999 in25.397 mm |
Abutment and Fillet Dimensions
R – Cone Backface “To Clear” Radius1 |
0.020 in0.500 mm |
db – Cone Backface Backing Diameter |
0.51 in13 mm |
Da – Cup Frontface Backing Diameter |
1.12 in28.40 mm |
Aa – Cage-Cone Backface Clearance |
-0.03 in-0.8 mm |
a – Effective Center Location2 |
-0.12 in-3 mm |
Basic Load Ratings
C90 – Dynamic Radial Rating (One-Row, 90 million revolutions)3 |
630 lbf2800 N |
C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions)4 |
4230 lbf18800 N |
C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions)5 |
1100 lbf4880 N |
Ca90 – Dynamic Thrust Rating (90 million revolutions)6 |
437 lbf1940 N |