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Roller Bearings
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Cylindrical Roller Bearings
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Super-Precision Cylindrical Roller Bearings
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Super-Precision Axial-Radial Cylindrical Roller Bearings
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NRT 180 B
NRT 180 B
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Overview |
|
| Part Number | NRT 180 B |
Characteristics |
|
| System of Measurement | Metric |
| Roller Bearing Type | Cylindrical |
| For Load Direction | Combined |
Dimensions |
|
| Bore Dia | 180 mm |
| Bore Dia Tolerance | -0.013mm to 0 |
| Outer Dia | 280 mm |
| Outer Dia Tolerance | -0.018mm to 0 |
| Width | 43 mm |
| Shoulder Diameter Inner Ring - Large Shoulder | 244 mm |
| Chamfer Dimension r2 (min.) | 0.3 mm |
| Height Tolerance | -0.175mm to 0 |
| Distance | 29 mm |
| Outer Ring (Housing Washer) Width | 15 mm |
| Outer Ring (Housing Washer) Chamfer Dimension r1 (min.) | 0.6 mm |
| Inner Ring (Shaft/Locating Washer) Hole Pitch Circle Diameter | 194 mm |
| Outer Ring (Housing Washer) Hole Pitch Circle Diameter | 260 mm |
| Inner Ring (Shaft/Locating Washer) Through Hole | 7 mm |
| Outer Ring (Housing Washer) Through Hole | 7 mm |
| Inner Ring (Shaft Washer) Sinkhole | 11 mm |
| Inner Ring (Shaft Washer) Sinkhole Depth | 6.2 mm |
Material |
|
| Ring Material | Chrome Steel |
| Roller Material | Chrome Steel |
| Cage Material | Brass |
Performance |
|
| Basic Dynamic Load Rating - Axial Direction | 80 kN |
| Basic Dynamic Load Rating - Radial Direction | 89.7 kN |
| Basic Static Load Rating - Radial Direction | 236 kN |
| Attainable Speed For Grease Lubrication | 190 r/min |
| Attainable Speed For Oil-Air Lubrication | 380 r/min |
| Axial Preload | 2.6 kN |
| Axial Unloading Force | 5.6 kN |
| Axial Stiffness For Preload A (sets of two brgs back-to-back or face-to-face) | 10600000 kN/µm |
| Axial Stiffness For Preload B (sets of two brgs back-to-back or face-to-face) | 5800000 kN/µm |
| Frictional Moment | 13 N·m |
| Moment Stiffness | 54 kN·m/mrad |
| Temperature Range | -30° to 110 °C |
Properties |
|
| Lubrication | Grease, Oil |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 7.5 kg |
