INA radial insert ball bearings consist of: a robust outer ring, an inner ring extending to one end or both ends, a plastic or steel cage, and P, R, Lor, or T seals.
These bearings are single-row and can be installed at any time. Bearings with an inner ring extending to both ends experience less inner ring misalignment, resulting in smoother operation.
The outer ring has a crown-shaped or cylindrical outer surface. Equipped with INA bearing housings that match the bearing model, bearings with a potted outer surface compensate for shaft eccentricity; see Eccentricity Compensation.
These bearings are secured to the bearing housing using an electrically locking collar, countersunk screws in the inner ring, an adapter sleeve, a drive groove, or a tight fit.
Radial insert ball bearings are easy to install and suitable for stamping shafts from h6 to h9. With a few exceptions, they require oil lubrication.
Some series with electrically locking collars and countersunk screws in the inner ring can also be installed with inch-sized drilled holes.
