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NRT 120 B

NRT 120 B

sales@its-bearing.com

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Overview
Part NumberNRT 120 B
Characteristics
System of MeasurementMetric
Roller Bearing TypeCylindrical
For Load DirectionCombined
Dimensions
Bore Dia120 mm
Bore Dia Tolerance-0.010mm to 0
Outer Dia210 mm
Outer Dia Tolerance-0.015mm to 0
Width40 mm
Shoulder Diameter Inner Ring - Large Shoulder184 mm
Chamfer Dimension r2 (min.)0.3 mm
Height Tolerance-0.175mm to 0
Distance26 mm
Outer Ring (Housing Washer) Width12 mm
Outer Ring (Housing Washer) Chamfer Dimension r1 (min.)0.6 mm
Inner Ring (Shaft/Locating Washer) Hole Pitch Circle Diameter135 mm
Outer Ring (Housing Washer) Hole Pitch Circle Diameter195 mm
Inner Ring (Shaft/Locating Washer) Through Hole7 mm
Outer Ring (Housing Washer) Through Hole7 mm
Inner Ring (Shaft Washer) Sinkhole11 mm
Inner Ring (Shaft Washer) Sinkhole Depth6.2 mm
Material
Ring MaterialChrome Steel
Roller MaterialChrome Steel
Cage MaterialBrass
Performance
Basic Dynamic Load Rating - Axial Direction72 kN
Basic Dynamic Load Rating - Radial Direction64.4 kN
Basic Static Load Rating - Radial Direction140 kN
Attainable Speed For Grease Lubrication230 r/min
Attainable Speed For Oil-Air Lubrication460 r/min
Axial Preload2 kN
Axial Unloading Force4.4 kN
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
Frictional Moment6 N·m
Moment Stiffness23 kN·m/mrad
Temperature Range-30° to 110 °C
Properties
LubricationGrease, Oil
RoHSCompliant
REACHCompliant
Weight4.8 kg
NRT 120 B
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