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71821 ACD/P4 High Speed Angular Contact Ball Bearings
Dimensions: Bore (Inner) Diameter: 105 mm; Outer Diameter: 130 mm; Width (Thickness): 13 mm;

71821 ACD/P4
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Product Attributes
Bearing Type Ball
For Load Direction Combined Radial and Thrust
Single Row/Double Row Single
Seal Type Open
Precision Rating P4 (ABEC-7)
Contact Angle 25
Part Number 71821 ACD/P4
NSK Code 7821A5TRP4
Arrangement DB Set of two bearings arranged back-to-back
DF Set of two bearings arranged face-to-face >
DT Set of two bearings arranged in tandem
DG Set of two bearings for universal matching
Bore Dia (d) 105 mm
Bore Dia Tolerance -0.008mm to 0
Outer Dia (D) 130 mm
Outer Dia Tolerance -0.009mm to 0
Width (B) 13 mm
Width Tolerance -0.2mm to 0
Ring Material 52100 Chrome steel
Ball Material 52100 Chrome steel
Cage Material Polyamide
Dynamic Load Rating (Cr) (KN) 21.6
Static Load Rating (Cor) (KN) 28.5
Max Speed (Grease) (RPM) 8000
Max Speed (Oil) (RPM) 12000
Preload Extra Light Preload
Light Preload
Medium Preload
Heavy Preload
Special Preload
Special Axial Clearance
Lubrication Required
Shaft Mount Type Press Fit
Temperature Range -40 to 120 ºC
Weight (grams) 320
RoHS Compliant
71821 ACD/P4
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