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NRT 260 B

NRT 260 B

sales@its-bearing.com

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Overview
Part NumberNRT 260 B
Characteristics
System of MeasurementMetric
Roller Bearing TypeCylindrical
For Load DirectionCombined
Dimensions
Bore Dia260 mm
Bore Dia Tolerance-0.018mm to 0
Outer Dia385 mm
Outer Dia Tolerance-0.02mm to 0
Width55 mm
Shoulder Diameter Inner Ring - Large Shoulder345 mm
Chamfer Dimension r2 (min.)0.6 mm
Height Tolerance-0.40mm to 0
Distance36.5 mm
Outer Ring (Housing Washer) Width18 mm
Outer Ring (Housing Washer) Chamfer Dimension r1 (min.)0.6 mm
Inner Ring (Shaft/Locating Washer) Hole Pitch Circle Diameter280 mm
Outer Ring (Housing Washer) Hole Pitch Circle Diameter365 mm
Inner Ring (Shaft/Locating Washer) Through Hole9.3 mm
Outer Ring (Housing Washer) Through Hole9.3 mm
Inner Ring (Shaft Washer) Sinkhole15 mm
Inner Ring (Shaft Washer) Sinkhole Depth8.2 mm
Material
Ring MaterialChrome Steel
Roller MaterialChrome Steel
Cage MaterialBrass
Performance
Basic Dynamic Load Rating - Axial Direction95 kN
Basic Dynamic Load Rating - Radial Direction108 kN
Basic Static Load Rating - Radial Direction355 kN
Attainable Speed For Grease Lubrication130 r/min
Attainable Speed For Oil-Air Lubrication260 r/min
Axial Preload7.3 kN
Axial Unloading Force16 kN
Axial Stiffness For Preload A (sets of two brgs back-to-back or face-to-face)14700000 kN/µm
Axial Stiffness For Preload B (sets of two brgs back-to-back or face-to-face)8300000 kN/µm
Frictional Moment25 N·m
Moment Stiffness153 kN·m/mrad
Temperature Range-30° to 110 °C
Properties
LubricationGrease, Oil
RoHSCompliant
REACHCompliant
Weight18.2 kg
NRT 260 B
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