EC=Optimized Internal Design Incorporating More And/Or Larger Rollers And With Modified Roller/End Flange Contact. MRD=To Enable Easier Handling During Maintenance, A One-Piece Machined Brass Cage Is Fitted That Is Roller And Outer Shoulder Guided An
Inner (d) Inch
Outer (D) Inch
Width (B) Inch
Description from Medias
Manufacturer Part Number (MPN)
NJ318ECMRD/C4VA301
Bore
C - Cylindrical Bore
Seal
No Seal
Cage Type
M - Brass Cage
External Modification
No External Modification
Radial Internal Play
C4 Internal Play (Higher than C3)
Precision
31 - Bearings for Traction Motors
Heat Stabilization
Special Treatment
No Heat Stabilization - Temperatures up to 120°C