Tolerance ring having various end tab designs to prevent interlocking
View Patent ↗A tolerance ring configured to prevent interlocking during shipping and handling. The tolerance ring has a cylinder with a first radius about an axis of rotation and a gap in the cylinder surface having a first edge and second edge extending along the axis. The gap in the cylindrical base has a first tab on the first edge and a second tab on the second edge. The first tab is adapted for coupling to the second tab and thereby prevents the interlocking of one tolerance ring with another. The gap can be configured to be non-linear.
1. A tolerance ring, comprising:
a cylinder having a central axis of rotation, an outer surface with a predetermined length between two ends and a gap along the predetermined length of the cylinder, the gap having a first edge and a second edge, the first edge and the second edge each extending from the two ends longitudinally along a portion of the gap and defining the perimeter of the outer surface of the cylinder, the first edge and the second edge being parallel to each other and parallel to the central axis of the cylinder;
a first tab protruding from the first edge and sized to radially overlap the second edge when the first edge and the second edge are in proximity;
a recess in the second edge sized to receive the first tab and defining secondary tabs along the second edge on opposite sides of the recess;
a plurality of primary contacting portions, each primary contacting portion projecting radially outward from the outer surface of the cylinder; and
one or more secondary contacting portions on the surface of the first tab.
2. The tolerance ring of claim 1 , wherein the secondary contacting portions project radially outward from the outer surface of the cylinder.
3. The tolerance ring of claim 1 wherein the secondary contacting portions vary in size from the primary contacting portions, the secondary contacting portions being sized to reduce mass eccentricity of the tolerance ring.
4. The tolerance ring of claim 1 wherein the primary contacting portions are arranged in a plurality of rows with each row extending circumferentially around the central axis of the cylinder, and the secondary contacting portions on the first tab are not aligned circumferentially with the plurality of rows.
5. The tolerance ring of claim 1 further comprising one or more secondary contacting portions located on the secondary tab.
6. The tolerance ring of claim 1 wherein at least one of the secondary contacting portions is axially aligned with the recess in the second edge.
7. A tolerance ring, comprising:
a cylinder having a central axis of rotation, an outer surface with a predetermined length between two ends and a gap along the predetermined length of the cylinder, the gap having a first edge and a second edge, the first edge and the second edge each extending from the two ends longitudinally along a portion of the gap and defining the perimeter of the outer surface of the cylinder, the first edge and the second edge being parallel to each other and to the central axis of the cylinder;
a first tab protruding from the first edge and sized to radially overlap the second edge when the first edge and the second edge are in proximity;
secondary tabs protruding from the second edge defining a recess on the second edge configured to receive the first tab;
a plurality of primary contacting portions projecting radially outward from the outer surface of the cylinder; and
one or more secondary contacting portions on the surface of the first tab.
8. The tolerance ring of claim 7 wherein the plurality of primary contacting portions are arranged in a plurality of rows with each row extending circumferentially around the central axis of the cylinder.
9. The tolerance ring of claim 8 where the secondary contacting portions on the first tab are not aligned circumferentially with the plurality of rows of the primary contacting portions.
10. The tolerance ring of claim 9 wherein the secondary contacting portions vary dimensionally from the primary contacting portions, the secondary contacting portions having dimensions that reduce mass eccentricity of the tolerance ring.