SP=Special Precision Class For Machine Tool Bearings: Dimensional Accuracy Approximately To P5, Running Accuracy Approximately To P4. P53=Combination Of P5 (Dimensional And Running Accuracy To ISO Tolerance Class 5) And C3 (Internal Clearance Larger
Inner (d) Inch
Outer (D) Inch
Width (B) Inch
Description from Medias
Manufacturer Part Number (MPN)
NNU4948SP.P53
Bore
C - Cylindrical Bore
Seal
No Seal
Cage Type
M - Brass Cage
External Modification
No External Modification
Radial Internal Play
C3 Internal Play (Higher than Cn)
Precision
P5 Precision (Higher than P6)
Heat Stabilization
Special Treatment
No Heat Stabilization - Temperatures up to 120°C