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Bearing RNA4913 (AST)
Needle Roller Bearings, Precision - Metric Series RNA4913
Bearing number : RNA4913
Size (mm) : 72x90x25
Brand : AST
Bore Diameter (mm) : 72
Outer Diameter (mm) : 90
Width (mm) : 25
Bearing dimensions and specification in AST catalogue:
(dimensions in mm)
Bearing Type - Single Row, Heavy Duty
Outer Dia (D) - 90.0000
Width (B) - 25.0000
Dynamic Load Rating (Cr) - 61,000
Static Load Rating (Cor) - 112,000
Max Speed (Oil) (X1000 RPM) - 6,500
Shaft (Fw) - 72.000
Weight (g) - 312.00
Material - 52100 Chrome steel, or equivalent
The bearing must be used with a hardened inner ring, or a hardened shaft.
Some sizes are available with either a single seal or two seals.
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