| 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 |
