Whenever the shaft can be used as the inner raceway, needle roller bearings without inner rings provide advantages of economy and close control of radial internal clearance in operation.

Tolerance class F6 is the normal specification for the metric series needle roller complement bore diameter of an unmounted bearing as shown in Table 1. In the case of needle roller bearings of series RNAO, without flanges and without inner rings, the outer rings and needle roller and cage assemblies are not interchangeable.

NEEDLE ROLLER BEARINGS WITHOUT INNER RINGS

METRIC SERIES

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