Bearing tolerances and clearances
- Tolerances: Normal, Other,
- Radial Internal clearance: Needle roller bearing
Support roller (yoke-type track roller), without flange rings, STO20, NAST 20 R, NAB204
| D | 47 mm | Outside diameter |
| d | 20 mm | Bore diameter |
| B | 16 mm | Width inner ring |
| C | 15.8 mm | Width outer ring |
| E | 32 mm | Raceway diameter outer ring |
| F | 25 mm | Raceway diameter inner ring |
| r min | 0.3 mm | Chamfer dimension outer ring |
| r1 min | 0.3 mm | Chamfer dimension inner ring |
| C | 16.1 kN | Basic dynamic load rating |
| C0 | 21.2 kN | Basic static load rating |
| Pu | 2.5 kN | Fatigue load limit |
| Fr | 18.6 kN | Maximum dynamic radial load |
| F0r | 26.5 kN | Maximum static radial load |
| nD G | 2400 r/min | Limiting speed |
| ≈m | 0.152 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 |
| STO20 | STO 20 | NAST 20 R | NAB204 | STO20 |
Bearing tolerances and clearances
