NRT 325 B
Part Number | NRT 325 B |
System of Measurement | Metric |
Roller Bearing Type | Cylindrical |
For Load Direction | Combined |
Bore Dia | 325 mm |
Bore Dia Tolerance | -0.023mm to 0 |
Outer Dia | 450 mm |
Outer Dia Tolerance | -0.023mm to 0 |
Width | 60 mm |
Height Tolerance | -0.40mm to 0 |
Shoulder Diameter Inner Ring - Large Shoulder | 415 mm |
Outer Ring (Housing Washer) Width | 20 mm |
Distance | 40 mm |
Inner Ring (Shaft/Locating Washer) Hole Pitch Circle Diameter | 342 mm |
Outer Ring (Housing Washer) Hole Pitch Circle Diameter | 430 mm |
Inner Ring (Shaft/Locating Washer) Through Hole | 9.3 mm |
Inner Ring (Shaft Washer) Sinkhole | 15 mm |
Outer Ring (Housing Washer) Through Hole | 9.3 mm |
Inner Ring (Shaft Washer) Sinkhole Depth | 8.2 mm |
Outer Ring (Housing Washer) Chamfer Dimension r1 (min.) | 0.6 mm |
Chamfer Dimension r2 (min.) | 0.6 mm |
Basic Dynamic Load Rating - Radial Direction | 134 kN |
Basic Static Load Rating - Radial Direction | 450 kN |
Basic Dynamic Load Rating - Axial Direction | 153 kN |
Attainable Speed For Grease Lubrication | 110 r/min |
Attainable Speed For Oil-Air Lubrication | 220 r/min |
Axial Preload | 12 kN |
Axial Unloading Force | 26 kN |
Frictional Moment | 45 N·m |
Axial Stiffness For Preload A (sets of two brgs back-to-back or face-to-face) | 28600000 kN/µm |
Axial Stiffness For Preload B (sets of two brgs back-to-back or face-to-face) | 8900000 kN/µm |
Moment Stiffness | 427 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 | 25 kg |
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