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Bearing HK4520 (AST)
Needle Roller Bearings - Metric Series HK4520
Bearing number : HK4520
Size (mm) : 45x52x20
Brand : AST
Bore Diameter (mm) : 45
Outer Diameter (mm) : 52
Width (mm) : 20
Bearing dimensions and specification in AST catalogue:
(dimensions in mm)
Bearing Type - Cage Retained Rollers
Outer Dia (D) - 52.0000
Width (B) - 20.0000
Dynamic Load Rating (Cr) - 27,000
Static Load Rating (Cor) - 59,000
Max Speed (Grease) (X1000 RPM) - 6,000
Shaft (Fw) - 45.000
Weight (g) - 56.00
Material - Drawn cup: Hardened carbon steel alloy, Rollers - 52100 Chrome steel or equivalent
Some sizes are available with a closed end.
The bearing must be used with a hardened inner ring, or a hardened shaft.
Some sizes are available as full complement grease retained roller or mechanically retainer roller designs.
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