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71938 CD/HCP4A High Speed Angular Contact Ball Bearings
Dimensions: Bore (Inner) Diameter: 190 mm; Outer Diameter: 260 mm; Width (Thickness): 33 mm;

71938 CD/HCP4A
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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 15
Part Number 71938 CD/HCP4A
NSK Code 7938CSN24TRP4
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) 190 mm
Bore Dia Tolerance -0.012mm to 0
Outer Dia (D) 260 mm
Outer Dia Tolerance -0.013mm to 0
Width (B) 33 mm
Width Tolerance -0.3mm to 0
Ring Material 52100 Chrome steel
Ball Material Ceramic Ball Si3N4
Cage Material Polyamide
Dynamic Load Rating (Cr) (KN) 172
Static Load Rating (Cor) (KN) 220
Max Speed (Grease) (RPM) 6300
Max Speed (Oil) (RPM) 9000
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) 3640
RoHS Compliant
71938 CD/HCP4A
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