Detailed Product Description

We supplies alignment needle roller bearings without an inner ring RPNA series, and with an inner ring (PNA series. Bearings without an inner ring provide the optimum solution for compact arrangements if the shaft can be hardened and ground. In applications where it is not possible or uneconomical to harden and grind the shaft, bearings with an inner ring should be used. Only bearings with an inner ring permit axial displacement of the shaft relative to the housing, within certain limits. If greater axial displacements are anticipated, extended inner rings that are wider than standard inner rings can be used. Extended inner rings can also be used if the inner ring raceway is to serve as a counterface for a seal adjacent to the bearing.

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