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Needle roller bearing, machined-ring, without inner ring

MR303920 - NTN

MR303920

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
Fw - Under rollers diameter47,625 mm
D - External diameter61,912 mm
C - Width of bearing, drawn cup or outer ring31,75 mm
rs - Min fillet radius1,5 mm
Lubrication hole on outer ringOui/Yes
k - Hole diameter3 mm
Radial clearance classCN
Precision classP0
Mass0,216 kg
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PRODUCT PERFORMANCE
Cr - Dynamic load rating59 kN
C0r - Static load rating105 kN
N lim - Grease lubrication limit speed5500 tr/min
N lim - Oil lubrication limit speed8500 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
Da max - Max shoulder diameter OR55,5 mm
ras max - Max shaft & housing fillet radius1,5 mm