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Needle roller bearing, machined-ring, with inner ring

NA4907LL/3AS - NTN

NA4907LL/3AS

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
d - Internal diameter35 mm
D - External diameter55 mm
B - Bearing/Inner ring width21 mm
C - Width of bearing, drawn cup or outer ring20 mm
F - Under roller diameter42 mm
rs - Min fillet radius0,6 mm
Lubrication hole on outer ringOui/Yes
k - Hole diameter3 mm
Lubrication hole on inner ringOui/Yes
Radial clearance classCN
Precision classP0
Mass0,175 kg
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PRODUCT PERFORMANCE
Cr - Dynamic load rating22,7 kN
C0r - Static load rating39,5 kN
N lim - Grease lubrication limit speed4800 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature100 °C
ABUTMENT
da min - Min shoulder diameter IR39 mm
Da max - Max shoulder diameter OR45 mm
Db max - Max OR shoulder diameter51 mm
ras max - Max shaft & housing fillet radius0,6 mm