Bearing tolerances and clearances
- Tolerances: Normal, Other,
- Radial Internal clearance: Needle roller bearing
Support roller (yoke-type track roller), separable, with cage, with two side plates, open, crowned outer profile , NAST12ZZR, NABR12, CZM12R, NAST12-2Z, STO12ZZ
D | 32 mm | Outside diameter |
d | 12 mm | Bore diameter |
B | 12 mm | Width inner ring |
C | 11.8 mm | Width outer ring |
d1 | 25.5 mm | Outside diameter flange ring |
e | 2.5 mm | e |
f | 0.8 mm | f |
h | 2 mm | Lubrication hole diameter |
C | 8.8 kN | Basic dynamic load rating |
C0 | 9.8 kN | Basic static load rating |
Pu | 1.18 kN | Fatigue load limit |
Fr | 8.3 kN | Maximum dynamic radial load |
F0r | 12 kN | Maximum static radial load |
nD G | 13000 r/min | Limiting speed |
≈m | 0.075 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 | |
With | 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 |
IKO・THK | NTN | KOYO | INA・SKF | FAG | Torrington |
NAST12ZZR | NABR12 | CZM12R | NAST12-2Z | STO12ZZ | STO12ZZ |
Bearing tolerances and clearances