Part Number |
NRT 120 B |
System of Measurement |
Metric |
Roller Bearing Type |
Cylindrical |
For Load Direction |
Combined |
Bore Dia |
120 mm |
Bore Dia Tolerance |
-0.010mm to 0 |
Outer Dia |
210 mm |
Outer Dia Tolerance |
-0.015mm to 0 |
Width |
40 mm |
Height Tolerance |
-0.175mm to 0 |
Shoulder Diameter Inner Ring - Large Shoulder |
184 mm |
Outer Ring (Housing Washer) Width |
12 mm |
Distance |
26 mm |
Inner Ring (Shaft/Locating Washer) Hole Pitch Circle Diameter |
135 mm |
Outer Ring (Housing Washer) Hole Pitch Circle Diameter |
195 mm |
Inner Ring (Shaft/Locating Washer) Through Hole |
7 mm |
Inner Ring (Shaft Washer) Sinkhole |
11 mm |
Outer Ring (Housing Washer) Through Hole |
7 mm |
Inner Ring (Shaft Washer) Sinkhole Depth |
6.2 mm |
Outer Ring (Housing Washer) Chamfer Dimension r1 (min.) |
0.6 mm |
Chamfer Dimension r2 (min.) |
0.3 mm |
Basic Dynamic Load Rating - Radial Direction |
64.4 kN |
Basic Static Load Rating - Radial Direction |
140 kN |
Basic Dynamic Load Rating - Axial Direction |
72 kN |
Attainable Speed For Grease Lubrication |
230 r/min |
Attainable Speed For Oil-Air Lubrication |
460 r/min |
Axial Preload |
2 kN |
Axial Unloading Force |
4.4 kN |
Frictional Moment |
6 N·m |
Axial Stiffness For Preload A (sets of two brgs back-to-back or face-to-face) |
8500000 kN/µm |
Axial Stiffness For Preload B (sets of two brgs back-to-back or face-to-face) |
4500000 kN/µm |
Moment Stiffness |
23 kN·m/mrad |
Ring Material |
Chrome Steel |
Roller Material |
Chrome Steel |
Cage Material |
Brass |
Lubrication |
Grease, Oil |
Temperature Range |
-30° to 110 °C |
RoHS |
Compliant |
REACH |
Compliant |
Weight |
4.8 kg |