Bearing tolerances and clearances
- Tolerances: Normal, Other,
- Radial Internal clearance: Needle roller bearing
Support roller (yoke-type track roller), without flange rings, STO40, NAST 40 R, NAB208
| D | 80 mm | Outside diameter |
| d | 40 mm | Bore diameter |
| B | 20 mm | Width inner ring |
| C | 19.8 mm | Width outer ring |
| E | 58 mm | Raceway diameter outer ring |
| F | 50 mm | Raceway diameter inner ring |
| r min | 1 mm | Chamfer dimension outer ring |
| r1 min | 1 mm | Chamfer dimension inner ring |
| C | 23.8 kN | Basic dynamic load rating |
| C0 | 39 kN | Basic static load rating |
| Pu | 4.75 kN | Fatigue load limit |
| Fr | 34.5 kN | Maximum dynamic radial load |
| F0r | 49 kN | Maximum static radial load |
| nD G | 850 r/min | Limiting speed |
| ≈m | 0.53 kg | Weight |
| -30 ºC to +120 ºC | Temperature range °C | |
| -22 ºF to +250 ºF | Temperature range °F |
| Crowned | Outer ring profile | |
| Needle rollers | Rolling elements | |
| 1 | Number of rows | |
| Without | Axial guidance of outer ring | |
| GCr15 (52100, 100Cr6) | Ring and roller material | |
| Sheet steel | Cage material | |
| Open | Sealing type | |
| Lithium Soap Grease NLGI #2 | Grease | |
| With | Re-lubrication |
| P0(ABEC-1) | Tolerance class | |
| CN | Radial internal clearance |
| INA | SKF | IKO/THK | NTN | Koyo-Torrington |
| STO40 | STO 40 | NAST 40 R | NAB208 | STO40 |
Bearing tolerances and clearances
