Cup needle bearing is a needle roller bearing with a thin stamped outer ring

The cup needle bearing with a stamped outer ring is a needle roller bearing with a thin stamped outer ring. Its main feature is that the section height is very low and the load bearing capacity is high.
It is mainly used for bearing configuration with compact structure, cheap price and the hole in the bearing box cannot be used as the raceway of the needle roller cage assembly.Cup needle bearing and bearing boxes shall be installed by interference fit. If the box shoulder, stop ring and other axial positioning function can be omitted, then the cup needle bearing box hole can be made very simple and economical.

The stamped outer ring cup needle bearing mounted on the shaft end are double-side open and single-side closed. The base end face of the closed stamping outer ring can withstand little axial guiding force.
Stamped outer ring cup needle bearing are generally not attached to the inner ring. In cases where the journal cannot be hardened and ground, the inner ring listed in the table can be used.
The hardened steel plate outer ring of the stamped outer ring cup needle bearing is not separable from the needle roller cage assembly.

The free space for storing lubricants can extend the refill lubrication interval. cup Needle bearing are generally designed in a single row. The exception is the wider series of bearings 1522,1622,2030,2538 and 3038, which are equipped with two needle roller cage assemblies. The cup needle bearing outer ring has a lubricating oil hole. According to the needs of the user, all single-row stamped outer ring needle roller bearings with shaft diameter greater than or equal to 7mm can be equipped with outer rings with oil holes (code suffix AS1).
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