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Moddel： d： B：
Type： B： Weight：

NA4909A_Needle bearing_Linqing Xingma Bearing Co., Ltd

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

Domestic and foreign models
New domestic models	NA4909A
Domestic old models	4524909

Dimensions
Inside diameter（d）	45	mm
Outside diameter（D）	68	mm
Thickness（B）	22	mm

Basic Load Rating
Dynamic load（Cr）	-	KN
Static load（Cor）	-	KN

Limiting Speeds
Grease	-	rpm
Oil	-	rpm

Weight
Weight	0.298	kg

BEARING TYPE
Type	Needle bearing

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