When it is impractical to finish the shaft to meet the desired raceway design requirements, an inner ring may be used. Standard needle roller bearings are available with inner rings (such as the NA Series) forming complete bearings. Bearings furnished with inner rings meet the quality requirements in accordance with ISO standards.
NEEDLE ROLLER BEARINGS WITH INNER RINGS
METRIC SERIES
(1) Max. axial displacement. Continued on next page.
