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Needle roller bearing, machined-ring, without inner ring

RNA4936 - NTN

RNA4936

Needle roller bearing, machined-ring, without inner ring, double-side ribs, lubrication hole

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
Fw - Under rollers diameter205 mm
D - External diameter250 mm
C - Width of bearing, drawn cup or outer ring69 mm
rs - Min fillet radius2 mm
Lubrication hole on outer ringOui/Yes
k - Hole diameter4 mm
Radial clearance classCN
Precision classP0
Mass4,48 kg
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PRODUCT PERFORMANCE
Cr - Dynamic load rating375 kN
C0r - Static load rating890 kN
N lim - Grease lubrication limit speed1300 tr/min
N lim - Oil lubrication limit speed2000 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
Da max - Max shoulder diameter OR241 mm
ras max - Max shaft & housing fillet radius2 mm