INA 81256-M thrust roller bearings
Manufacturers NTN PRECISION AXLE CORP. of all thrust roller bearings are represented in our partial 20 d list of No Machining clients. Contact Gary for a complete INA 81256-M thrust roller bearings list of clients and projects.
What is 81256-M bearing cross reference？
| Brand Name: |
INA |
| Model Number: |
81256-M |
| Series: |
555 |
| Cone Part Number: |
559 |
| Cup Part Number: |
552D |
| Design Units: |
Imperial |
| Bearing Weight: |
8.91 lb |
| Cage Type: |
Stamped Steel |
| Ab - Cage-Cone Frontface Clearance: |
0.08 in |
| d: |
2.5000 in |
| PDF |
81256-M |
Product Details
| Series |
555 |
| Cone Part Number |
559 |
| Cup Part Number |
552D |
| Design Units |
Imperial |
| Bearing Weight |
8.91 lb |
| Cage Type |
Stamped Steel |
| Ab - Cage-Cone Frontface Clearance |
0.08 in |
| d |
2.5000 in |
| D |
4.8750 in |
| B - Cone Width |
1.4440 in |
| C - Double Cup Width |
2.5 in |
| T - Bearing Width across Cones |
3.1249 in |
| R - Cone Backface To Clear Radius1 |
0.14 in |
| r - Cup Frontface To Clear Radius2 |
0.06 in |
| db - Cone Backface Backing Diameter |
3.19 in |
| Da - Cup Frontface Backing Diameter |
4.56 in |
| Aa - Cage-Cone Backface Clearance |
0.07 in |
| C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3 |
13200 lbf |
| C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4 |
88500 lbf |
| C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5 |
22900 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions)6 |
7810 lbf |
| K - Factor7 |
1.69 |
| e - ISO Factor8 |
0.35 |
| Y1 - ISO Factor9 |
1.95 |
| Y2 - ISO Factor10 |
2.9 |
| G1 - Heat Generation Factor (Roller-Raceway)11 |
91 |
| G2 - Heat Generation Factor (Rib-Roller End) |
21.1 |
| Cg - Geometry Factor12 |
0.111 |