Bearing tolerances and clearances
- Tolerances: Normal, Other,
- Radial Internal clearance: Needle roller bearing
Support roller (yoke-type track roller), without flange rings, STO25, NAST 25 R, NAB205
D | 52 mm | Outside diameter |
d | 25 mm | Bore diameter |
B | 16 mm | Width inner ring |
C | 15.8 mm | Width outer ring |
E | 37 mm | Raceway diameter outer ring |
F | 30 mm | Raceway diameter inner ring |
r min | 0.3 mm | Chamfer dimension outer ring |
r1 min | 0.3 mm | Chamfer dimension inner ring |
C | 16.5 kN | Basic dynamic load rating |
C0 | 22.8 kN | Basic static load rating |
Pu | 2.7 kN | Fatigue load limit |
Fr | 18 kN | Maximum dynamic radial load |
F0r | 26 kN | Maximum static radial load |
nD G | 1800 r/min | Limiting speed |
≈m | 0.177 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 |
STO25 | STO 25 | NAST 25 R | NAB205 | STO25 |
Bearing tolerances and clearances