Abstract: A tolerance ring can be disposed between an inner component and an outer component, the inner and outer components defining stepped sidewalls. In an embodiment, a preassembly can include an outer component defining a bore having a stepped inner sidewall, an inner component having a stepped outer sidewall, and a tolerance ring adapted to be disposed between the inner component and the bore. In an embodiment, an assembly can include an outer component defining a bore having a stepped inner sidewall, an inner component having a stepped outer sidewall, and a tolerance ring disposed between the inner component and the bore. In an embodiment, a hard disk drive preassembly can include an actuator arm defining a bore having a stepped inner sidewall, a pivot having a stepped outer sidewall, and a tolerance ring adapted to be disposed between the pivot and the bore.

Abstract: A tolerance ring is disclosed and can include a generally cylindrical body that can include a side wall. The sidewall can define a top and a bottom. Further, the sidewall can include a plurality of wave structures that can extend from the sidewall, a plurality of unformed sections, and a gap that can extend along the entire length of the body. Each unformed section can be located between a pair of adjacent wave structures. Further, the gap can establish a split in the body. The tolerance ring can also include at least one hole intersecting at least one of the wave structures to establish a perforated wave structure.

Abstract: A tolerance ring is disclosed and can include a generally cylindrical body having a sidewall. The sidewall can include a plurality of wave structures extending from the sidewall at regular intervals around the body, a first unformed section between a first pair of adjacent wave structures, and a second unformed section between a second pair of adjacent wave structures. The gap can extend along an entire length, L, of the body to establish a split in the body. The second unformed section can include a slot therein. The slot can have a length, LS, and LS?80% L.

Abstract: A tolerance ring is disclosed and can include a generally cylindrical body having a sidewall. The sidewall can include a first unformed section and a gap in the first unformed section. The gap can extend along an entire length of the body to establish a split in the body. The sidewall can also include a second unformed section opposite the first unformed section, a first wave bank flanking the first unformed section with the gap, and a second wave bank flanking the first unformed section with the gap. The wave banks can be equally spaced around a circumference of the body of the tolerance ring and the body of the tolerance ring can be symmetrical about a center axis that extends from a center of the tolerance ring and bisects the gap in the first unformed section.