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7228B Single Row Angular Contact Ball Bearings
Dimensions: Bore (Inner) Diameter: 140 mm; Outer Diameter: 250 mm; Width (Thickness): 42 mm;

7228B
Product Attributes
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 40
Part Number 7228B
Bore Dia (d) 140 mm
Bore Dia Tolerance -0.01mm to 0
Outer Dia (D) 250 mm
Outer Dia Tolerance -0.011mm to 0
Width (B) 42 mm
Width Tolerance -0.25mm 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) 197
Static Load Rating (Cor) (KN) 213
Max Speed (Grease) (RPM) 2000
Max Speed (Oil) (RPM)  2800
Lubrication Required
Shaft Mount Type Press Fit
Temperature Range -40 to 120 ºC
Mass(Kg) 8.94
RoHS Compliant
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