TIMKEN 2578-2520A Tapered roller bearing
Also known as : 2578-2520A
- Inside Diameter: 28.575 mm
- Outside Diameter: 66.421 mm
- Width: 25.4 mm
- Basic dynamic load rating: 83.7 kN
- Basic static load rating: 94.4 kN
TIMKEN 2578-2520A
TIMKEN 2578-2520A details
| Series | 2500 |
|---|---|
| model | 2578-2520A |
| Cone Part Number | 2578 |
| Cup Part Number | 2520A |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| Bearing Weight |
0.400 Kg 1.00 lb |
| Dimensions | |
| d - Bore |
28.575 mm 1.1250 in |
| D - Cup Outer Diameter |
66.421 mm 2.6150 in |
| B - Cone Width |
25.357 mm 0.9983 in |
| C - Cup Width |
20.638 mm 0.8125 in |
| T - Bearing Width |
25.400 mm 1.0000 in |
| Abutment and Fillet Dimensions | |
| R - Cone Backface "To Clear" Radius |
2.290 mm 0.090 in |
| r - Cup Backface "To Clear" Radius |
1.52 mm 0.06 in |
| da - Cone Frontface Backing Diameter |
35.05 mm 1.38 in |
| db - Cone Backface Backing Diameter |
39.12 mm 1.54 in |
| Da - Cup Frontface Backing Diameter |
62.00 mm 2.46 in |
| Db - Cup Backface Backing Diameter |
58.93 mm 2.32 in |
| Ab - Cage-Cone Frontface Clearance |
1.5 mm 0.06 in |
| Aa - Cage-Cone Backface Clearance |
0.5 mm 0.02 in |
| a - Effective Center Location |
-8.60 mm -0.34 in |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions) |
21700 N 4880 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions) |
83700 N 18800 lbf |
| C0 - Static Radial Rating |
94400 N 21200 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions) |
10200 N 2280 lbf |
| Factors | |
| K - Factor | 2.14 |
| e - ISO Factor | 0.27 |
| Y - ISO Factor | 2.19 |
| G1 - Heat Generation Factor (Roller-Raceway) | 23.6 |
| G2 - Heat Generation Factor (Rib-Roller End) | 9.6 |
| Cg - Geometry Factor | 0.0656 |
TIMKEN 2578-2520A bearing cross reference
68450R/68709R
28.575 mmx 66.421 mmx 25.4 mm
H414245/H414210
28.575 mmx 66.421 mmx 25.4 mm
387/382A
28.575 mmx 66.421 mmx 25.4 mm
HM88630R/HM88610R
28.575 mmx 66.421 mmx 25.4 mm
02473R/02420R
28.575 mmx 66.421 mmx 25.4 mm
23100R/23256R
28.575 mmx 66.421 mmx 25.4 mm
387-384ED
28.575 mmx 66.421 mmx 25.4 mm
389-384DRB
28.575 mmx 66.421 mmx 25.4 mm
EE132083-132126D
28.575 mmx 66.421 mmx 25.4 mm
42362D - 42586
28.575 mmx 66.421 mmx 25.4 mm
L357049-L357019-B
28.575 mmx 66.421 mmx 25.4 mm
