7921A5DB Duplex Pair Bearings
Dimensions: Bore (Inner) Diameter: 105 mm； Outer Diameter: 145 mm； Width (Thickness): 40 mm;

Product Attributes

Bearing Type	Ball
For Load Direction	Combined Radial and Thrust
Construction	Two
Single Row/Double Row	Single
Seal Type	Open
Precision Rating	P4 (ABEC-7)
Contact Angle	25
Part Number	7921A5DB
Arrangement	DB (back-to-back arrangement)
Bore Dia (d)	105 mm
Bore Dia Tolerance	-0.008mm to 0
Outer Dia (D)	145 mm
Outer Dia Tolerance	-0.009mm to 0
Width (2B)	40 mm
Width Tolerance	-0.2mm to 0
Ring Material	52100 Chrome steel
Ball Material	52100 Chrome steel
Cage Material	TYN (ball guided polyamide resin cage)
	TR (outer ring guided polyamide resin cage)
	W ( steel plate punching)
	T85 (polyamide 46 resin)
Dynamic Load Rating (Cr) (KN)	78.5
Static Load Rating (Cor) (KN)	108
Max Speed (Grease) (RPM)	4300
Max Speed (Oil) (RPM)	6000
Lubrication	Required
Shaft Mount Type	Press Fit
Temperature Range	-40 to 120 ºC
Mass(Kg)	1.64
RoHS	Compliant

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