S=(W33-SKF)=Lubrication Groove And Three Holes In Bearing Outer Ring. M=Solid Brass Cage, Roller Guided. UP=Special Tolerance Class For Machine Tool Spindle Bearings; Dimensional Accuracy Approximately To ISO Tolerance Class 4 And Running Accuracy Be
Inner (d) Inch
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Outer (D) Inch
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Width (B) Inch
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Description from Medias
Manufacturer Part Number (MPN)
NNU4944S.M.UP
Bore
C - Cylindrical Bore
Seal
No Seal
Cage Type
M - Brass Cage
External Modification
No External Modification
Radial Internal Play
Cn Normal Internal
Precision
UP (Ultra Precision)
Heat Stabilization
Special Treatment
No Heat Stabilization - Temperatures up to 120°C