NRT 120 B

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

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