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NK21/20-XL Heavy Duty Needle Roller Bearings (Machined)
Dimensions: Bore (Inner) Diameter: 21 mm; Outer Diameter: 29 mm; Width (Thickness): 20 mm;

NK21/20-XL
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Product Attributes
Bearing Type Roller
Roller Bearing Type Needle
For Load Direction Radial
Construction Single Row
System of Measurement Metric
Seal Type Open
Part Number NK21/20-XL
For Shaft Diameter 21mm
Bore Dia 21mm
Bore Dia Tolerance 0.02mm to 0.033mm
For Housing ID 29mm
Outer Dia 29mm
Outer Dia Tolerance -0.009mm to 0
Width 20mm
Width Tolerance -0.12mm to 0
Chamfer Dimension (r min) 0.3mm
Ring Material steel
Roller Material steel
Cage Material steel
Dynamic Load Rating (Cr) (Newtons) 19300
Static Load Rating (Cor) (Newtons) 25500
Fatigue limit load(Cur) (Newtons) 4500
Max Speed (Grease) (RPM) 20600
Lubrication Required
Lubricant Grease
Shaft Mount Type Press Fit
Temperature Range -20 to 110 °C
RoHS Compliant
Weight (grams) 35.2
NK21/20-XL
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