UCPA series bearings

Insert bearings are based on sealed deep groove ball bearings in the 62 and 63 series, but have a convex outer ring and in most cases an extended inner ring with a specific locking device, enabling quick and easy mounting onto the shaft.

Features and benefits

Quick and easy to mount

The different locking methods enable quick and easy mounting of insert bearings onto the shaft.

Accommodate initial misalignment

The spherically shaped outside surface enables initial misalignment by tilting in the housing (fig. 1).

Long service life

The different sealing solutions available provide a long service life for a wide variety of applications with high contamination levels.

Reduced noise and vibration levels

Where high requirements on noise and vibration levels are important, SKF can provide the appropriate shaft locking method.

(fig. 1)

Insert bearings typically have a spherically shaped (convex) outside surface and an extended inner ring (fig. 1) with different types of locking device. The various insert bearing series differ in the way the bearing is locked onto the shaft:

with set (grub) screws (fig. 2)

(fig. 2)

with an eccentric locking collar (fig. 3)

(fig. 3)

with ConCentra locking technology (fig. 4)

(fig. 4)

with an adapter sleeve (fig. 5)

(fig. 5)

with an interference fit (fig. 6)

(fig. 6)

Insert bearings with an inner ring that is extended on both sides run more smoothly, as the extent to which the inner ring can tilt on the shaft is reduced.