Bearing Type Ball
For Load Direction Combined Radial and Thrust
Construction One
Single Row/Double Row Single
Seal Type Open
Precision Rating P4 (ABEC-7)
Contact Angle 25
Part Number 7921A5
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 (B) 20 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) 48
Static Load Rating (Cor) (KN) 54
Max Speed (Grease) (RPM) 5600
Max Speed (Oil) (RPM)  7500
Lubrication Required
Shaft Mount Type Press Fit
Temperature Range -40 to 120 ºC
Mass(Kg) 0.82
RoHS Compliant
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