Patent ID: 9677617
Date: 2017-06-13
CPC Classifications: F16C

Claim:
1. A bearing cage for retaining rolling elements of a rolling element bearing, the bearing cage having: at least one first ring structure comprising at least one first cage bar and first and second axially opposed, annular rings, the at least one first cage bar extending between the first and second axially opposed, annular rings; a second ring structure comprising at least one second cage bar and a third annular ring, the at least one second cage bar extending axially from the third annular ring and forming a free end such that the second ring structure only has a single annular ring; whereby the at least one second cage bar is configured to be aligned in a radial direction with the at least one first cage bar, wherein the at least one second cage bar is located radially inwards of the at least one first cage bar, and such that both of the at least one first cage bar and the at least one second cage bar are configured to contact a rolling surface of one of the rolling elements.