Aktiebolaget Skf

Piero Santangelo

Riccardo Restivo

Gianpiero Scaltriti

Roberto Mola

Flora Rosso

A cage for retaining one or more rolling bodies of a bearing unit, the cage including a rib having a plurality of spherical concave surfaces, and a plurality of circumferentially spaced tenons extending from a first axial side of the rib, each tenon of the plurality of tenons including a plurality of spherical concave surfaces and an armature defining a box shape, the armature including a plurality of first portions resting on a first plane and a plurality of second portions resting on a second plane, each first portion of the plurality of first portions alternating circumferentially with each second portion, and the spherical concave surfaces of the rib defining, with the spherical concave surfaces of the tenons, a plurality of spherical cavities to hold each rolling body of the row of rolling bodies in place.

Bearing unit with reinforced retention cage

A bearing unit includes a radially outer ring, a radially inner ring, a row of rolling bodies interposed between the radially outer ring and the radially inner ring and a cage for retaining the rolling bodies, where the cage includes a rib with a circular base and a plurality of circumferentially spaced fingers defining a plurality of pockets for holding the respective rolling bodies of the row of rolling bodies. Also, a plurality of inserts formed separately from the cage, each of the plurality of inserts being inserted inside seats of corresponding adjacent pairs of fingers of the plurality of fingers to limit circumferential deformation of the fingers.

Bearing unit having a high-performance retention device

A rolling bearing is provided that includes an outer ring, an inner ring, and a plurality of rollers disposed between the outer and inner rings to engage a radially outer lateral surface of the inner ring and a radially inner lateral surface of the outer ring and being laterally held, in a direction parallel to a relative rotation axis (A) between the rings, by respective axial shoulders. The axial shoulders each consist of an annular element made of synthetic plastic material as an independent element from the rings that engages in a snapping manner either the inner ring or the outer ring; the inner and outer rings being provided, at their respective radially outer and inner lateral surfaces and at opposite axial ends thereof, with snapping locking seats for the annular elements made of synthetic plastic material each including a continuous annular groove.

Growing community of inventors

Turin, Italy

Piero Santangelo