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Drawn cup needle roller bearings, closed end

BK4020 - NTN

BK4020

Needle roller bearing, drawn cup, closed end

Documentation

Product information

PRODUCT DEFINITION
BrandNTN
Fw - Under rollers diameter40 mm
D - External diameter47 mm
C - Width of bearing, drawn cup or outer ring20 mm
C1 - Max drawn cup closed end thickness2,7 mm
Lubrication hole on outer ringNon/No
Inner ring referenceIR35X40X20.5
Mass0,064 kg
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PRODUCT PERFORMANCE
Cr - Dynamic load rating25,9 kN
C0r - Static load rating52,5 kN
N lim - Grease lubrication limit speed4000 tr/min
N lim - Oil lubrication limit speed6000 tr/min
Tmin - Min operating temperature-20 °C
Tmax - Max operating temperature120 °C