71938 CD/P4AH1 High Speed Angular Contact Ball Bearings
Dimensions: Bore (Inner) Diameter: 190 mm； Outer Diameter: 260 mm； Width (Thickness): 33 mm;

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/P4AH1
NSK Code	7938CTRE34P4
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	52100 Chrome steel
Cage Material	Polyamide
Dynamic Load Rating (Cr) (KN)	172
Static Load Rating (Cor) (KN)	220
Max Speed (Grease) (RPM)	5000
Max Speed (Oil) (RPM)	7500
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)	4350
RoHS	Compliant

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