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Moddel： d： B：
Type： B： Weight：

RNA6903_Needle bearing_Linqing Xingma Bearing Co., Ltd

Source :Linqing Xingma Bearing Co., Ltd Column:Needle bearing

Domestic and foreign models
New domestic models	RNA6903
Domestic old models	6644903

Dimensions
Inside diameter（d）	17	mm
Outside diameter（D）	30	mm
Thickness（B）	23	mm

Basic Load Rating
Dynamic load（Cr）	18.9	KN
Static load（Cor）	29	KN

Limiting Speeds
Grease	20000	rpm
Oil	-	rpm

Weight
Weight	0.04	kg

BEARING TYPE
Type	Needle bearing

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