TIMKEN 1987-1931-B Tapered roller bearing
Also known as : 1987-1931-B
- Inside Diameter: 26.975 mm
- Outside Diameter: 60.325 mm
- Width: 7.938 mm
- Basic dynamic load rating: 48.4 kN
- Basic static load rating: 50.2 kN
TIMKEN 1987-1931-B
TIMKEN 1987-1931-B details
| Series | 1900 |
|---|---|
| model | 1987-1931-B |
| Cone Part Number | 1987 |
| Cup Part Number | 1931-B |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| Bearing Weight |
0.400 Kg 0.80 lb |
| Dimensions | |
| d - Bore |
26.975 mm 1.0620 in |
| D - Cup Outer Diameter |
60.325 mm 2.3750 in |
| D1 - Flange Outer Diameter |
64.186 mm 2.5270 in |
| B - Cone Width |
19.355 mm 0.7620 in |
| C - Cup Width |
15.875 mm 0.6250 in |
| C1 - Cup Flange Width |
3.967 mm 0.1562 in |
| T - Bearing Width to Flange |
7.938 mm 0.3125 in |
| T1 - Bearing Width |
19.845 mm 0.7813 in |
| Abutment and Fillet Dimensions | |
| R - Cone Backface "To Clear" Radius |
0.800 mm 0.03 in |
| r - Cup Backface "To Clear" Radius |
0.80 mm 0.030 in |
| da - Cone Frontface Backing Diameter |
31.5 mm 1.24 in |
| db - Cone Backface Backing Diameter |
32.5 mm 1.28 in |
| Da - Cup Frontface Backing Diameter |
57.40 mm 2.26 in |
| Ab - Cage-Cone Frontface Clearance |
2 mm 0.08 in |
| Aa - Cage-Cone Backface Clearance |
0 mm 0 in |
| a - Effective Center Location |
-5.8 mm -0.23 in |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions) |
12500 N 2820 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions) |
48400 N 10900 lbf |
| C0 - Static Radial Rating |
50200 N 11300 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions) |
7080 N 1590 lbf |
| Factors | |
| K - Factor | 1.77 |
| e - ISO Factor | 0.33 |
| Y - ISO Factor | 1.82 |
| G1 - Heat Generation Factor (Roller-Raceway) | 12.5 |
| G2 - Heat Generation Factor (Rib-Roller End) | 6.33 |
| Cg - Geometry Factor | 0.0565 |
TIMKEN 1987-1931-B bearing cross reference
68450R/68709R
26.975 mmx 60.325 mmx 7.938 mm
H414245/H414210
26.975 mmx 60.325 mmx 7.938 mm
387/382A
26.975 mmx 60.325 mmx 7.938 mm
HM88630R/HM88610R
26.975 mmx 60.325 mmx 7.938 mm
02473R/02420R
26.975 mmx 60.325 mmx 7.938 mm
23100R/23256R
26.975 mmx 60.325 mmx 7.938 mm
387-384ED
26.975 mmx 60.325 mmx 7.938 mm
389-384DRB
26.975 mmx 60.325 mmx 7.938 mm
EE132083-132126D
26.975 mmx 60.325 mmx 7.938 mm
42362D - 42586
26.975 mmx 60.325 mmx 7.938 mm
L357049-L357019-B
26.975 mmx 60.325 mmx 7.938 mm
