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Needle roller bearing, machined-ring, with inner ring

NK43/20R+1R38X43X20 - NTN

NK43/20R+1R38X43X20

Needle roller bearing, machined-rings, with inner ring, double-side ribs, lubrication hole

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter38 mm
D - External diameter53 mm
C - Width of bearing, drawn cup or outer ring20 mm
F - Under roller diameter43 mm
rs - Min fillet radius0,3 mm
s - Max axial offset0,5 mm
Lubrication hole on outer ringOui/Yes
k - Hole diameter3 mm
Inner ring reference1R38X43X20
Lubrication hole on inner ringNon/No
Radial clearance classCN
Precision classP0
Mass0,134 kg
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PRODUCT PERFORMANCE
Cr - Dynamic load rating27,5 kN
C0r - Static load rating51 kN
N lim - Grease lubrication limit speed6500 tr/min
N lim - Oil lubrication limit speed9500 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C
ABUTMENT
da min - Min shoulder diameter IR40 mm
Da max - Max shoulder diameter OR51 mm
ras max - Max shaft & housing fillet radius0,3 mm