Page 109 - needle bearings
P. 109
Drawn cup needle roller bearings sealed type
NTN
Type BKʝL
(Closed end and single-side seal type)
Mass Appropriate 1)
kg inner ring
(approx.) (as a reference)
open end open end closed end single seal double seal
single seal double seal single seal
0.031 0.034 ʵ IR20ʷ25ʷ20 IR20ʷ25ʷ23
0.041 0.043 ʵ IR20ʷ25ʷ26.5 IR20ʷ25ʷ26.5
ʵ 0.037 ʵ ʵ IR22ʷ28ʷ23
0.051 0.054 ʵ ʵ IR22ʷ28ʷ30
ʵ 0.027 ʵ ʵ IR25ʷ30ʷ18D
0.037 0.039 0.045 IR25ʷ30ʷ20 IR25ʷ30ʷ23
0.061 0.064 ʵ IR25ʷ30ʷ26 IR25ʷ30ʷ26.5
0.076 0.078 ʵ IR25ʷ30ʷ30 IR25ʷ30ʷ32
0.065 0.069 ʵ ʵ IR28ʷ32ʷ30
ʵ 0.036 ʵ ʵ ʵ
0.037 0.040 0.047 ʵ ʵ
0.053 0.056 ʵ ʵ ʵ
0.086 0.089 ʵ ʵ ʵ
0.094 0.098 ʵ IR32ʷ38ʷ32 IR32ʷ38ʷ32
ʵ 0.041 ʵ ʵ IR35ʷ40ʷ17
0.047 0.050 0.062 IR35ʷ40ʷ20 ʵ
0.060 0.063 ʵ IR35ʷ40ʷ20 ʵ
0.097 0.100 ʵ IR35ʷ40ʷ30 IR32ʷ40ʷ36
0.054 0.057 0.072 IR40ʷ45ʷ20 ʵ
0.087 0.091 ʵ IR40ʷ45ʷ26.5 IR40ʷ45ʷ26.5
0.086 0.089 0.104 IR45ʷ50ʷ25 IR45ʷ50ʷ25.5
0.144 0.149 ʵ IR45ʷ50ʷ32 IR45ʷ50ʷ32
B-47
