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Bearing S138 (AST)
Needle Roller Bearings - Inch Series S138
Bearing number : S138
Brand : AST
Bore Diameter (mm) : 20,65
Outer Diameter (mm) : 27
Width (mm) : 12,7
Bearing dimensions and specification in AST catalogue:
(dimensions in inches)
Bearing Type - Full Complement, Mechanically Retained Rollers
Outer Dia (D) - 1.0630
Width (B) - 0.5000
Dynamic Load Rating (Cr) - 3,000
Static Load Rating (Cor) - 4,900
Max Speed (Grease) (X1000 RPM) - 5,200
Shaft (Fw) - 0.813
Weight (g) - 18.00
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 design.
Tags : AST
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