Drawn cup needle roller bearing

The needle roller bearing with punched outer ring has a variety of structures, such as piercing type and sealing type. Its radial section height is small. The outer ring and cage are manufactured by metal forming method. The needle contour surface of the bearing is designed with modification, which can effectively avoid destructive edge stress of the product. As required, lubricating oil holes can be set on the outer ring of the bearing to implement the lubrication of the bearing. Perforated or sealed bearings with oil seal device can be provided to solve the problem that oil seal cannot be installed due to space limitation, and lithium base grease with good lubrication and rust resistance can be filled in between.

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