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Needle roller bearing
BK4020 Drawn Cup Needle Roller Bearings with Closed End
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Domax
®
Precision rolling bearings
Main Dimensions & Performance Data
d
47 mm
Fw
40 mm
C
20 mm
Cr
25500 N
Cor
52000 N
Cur
6900 N
Reference speed
4900 rpm
Limiting speed
6600 rpm
Grease lubrication speed
3950 rpm
Mounting dimensions
r min
0.8 mm
Minimum chamfer size
Ct min
17.3 mm
Closed drawn cup seat minimum width
Temperature range
T min
-30 °C
Minimum operating temperature
T max
140 °C
Maximum operating temperature