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RNA4940 - NTN

RNA4940

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

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Technical datasheet

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PRODUCT DEFINITION
BrandNTN
Fw - Under rollers diameter225 mm
D - External diameter280 mm
C - Width of bearing, drawn cup or outer ring80 mm
rs - Min fillet radius2,1 mm
Lubrication hole on outer ringYes
k - Hole diameter4 mm
Radial clearance classCN
Precision classP0
Mass7,2 kg
Product classification image
PRODUCT PERFORMANCE
Cr - Dynamic load rating505 kN
C0r - Static load rating1180 kN
Nlim - Grease lubrication limit speed1200 tr/min
Nlim - Oil lubrication limit speed1800 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
Da max - Max shoulder diameter OR269 mm
ras max - Max shaft & housing fillet radius2 mm