Bearing Type	Ball
For Load Direction	Combined Radial and Thrust
Single Row/Double Row	Single
Seal Type	Sealed
Precision Rating	P4 (ABEC-7)
Contact Angle	15
Part Number	S71904 CD/HCP4A
NSK Code	S7904CSN24TRV1VP4
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)	20 mm
Bore Dia Tolerance	-0.005mm to 0
Outer Dia (D)	37 mm
Outer Dia Tolerance	-0.006mm to 0
Width (B)	9 mm
Width Tolerance	-0.12mm to 0
Ring Material	52100 Chrome steel
Ball Material	Ceramic Ball Si3N4
Cage Material	Polyamide
Dynamic Load Rating (Cr) (KN)	6.05
Static Load Rating (Cor) (KN)	3.2
Max Speed (Grease) (RPM)	53000
Max Speed (Oil) (RPM)
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)	33
RoHS	Compliant