Part Number

d - Bore

D - Outer Diameter

B - Width

Cr - Dynamic Radial Rating

Cor - Static Radial Rating

Reference speed

Limiting speed

NA 4908 RS 40 mm 62 mm 23 mm 36.9 N 58.5 N 7.1 rpm 4000
NA 4908 40 mm 62 mm 22 mm 42.9 N 71 N 8.8 rpm 9500
NA 4907.2RS 35 mm 55 mm 21 mm 27 N 43 N 5.3 rpm 4800
NA 4907 RS 35 mm 55 mm 21 mm 27 N 43 N 5.3 rpm 4800
NA 4907 35 mm 55 mm 20 mm 31.9 N 54 N 6.7 rpm 11000
NA 4906.2RS 30 mm 47 mm 18 mm 23.3 N 32 N 3.8 rpm 5600
NA 4906 RS 30 mm 47 mm 18 mm 23.3 N 32 N 3.8 rpm 5600
NA 4906 30 mm 47 mm 17 mm 25.5 N 39 N 4.65 rpm 13000
NA 4905.2RS 25 mm 42 mm 18 mm 21.6 N 27.5 N 3.25 rpm 6300
NA 4905 RS 25 mm 42 mm 18 mm 21.6 N 27.5 N 3.25 rpm 6300
NA 4905 25 mm 42 mm 17 mm 24.2 N 34.5 N 4.15 rpm 15000
NA 4904.2RS 20 mm 37 mm 18 mm 19.4 N 22.4 N 2.65 rpm 7500
NA 4904 RS 20 mm 37 mm 18 mm 19.4 N 22.4 N 2.65 rpm 7500
NA 4904 20 mm 37 mm 17 mm 21.6 N 28 N 3.35 rpm 17000
NA 4903.2RS 17 mm 30 mm 14 mm 9.52 N 12.9 N 1.53 rpm 9000
NA 4903 RS 17 mm 30 mm 14 mm 9.52 N 12.9 N 1.53 rpm 9000
NA 4903 17 mm 30 mm 13 mm 11.4 N 16.3 N 1.96 rpm 20000
NA 4902.2RS 15 mm 28 mm 14 mm 9.13 N 12 N 1.43 rpm 9500
NA 4902 RS 15 mm 28 mm 14 mm 9.13 N 12 N 1.43 rpm 9500
NA 4902 15 mm 28 mm 13 mm 11.2 N 15.3 N 1.83 rpm 22000
Model query
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Shandong Oukai Bearing Manufacturing Co.,Ltd

Tel:0635-2858518

Phone:150 9506 6919

Fax:0635-2858518

Address:Yandian Industry Park, Linqing City, Shandong Province