Patent ID: 8905643

Claim:
A thermal compensation element, comprising: an outer ring including: an outer base; a first outer wall extending from the outer base in a first direction and bent in a second direction orthogonal to the first direction; and, a second outer wall extending from the outer base in the first direction to form a first U-shape with the outer base and the first outer wall and including a second distal end bent in a third direction, opposite the second direction; an inner ring including: an inner base; and, a first inner wall extending from the inner base in a fourth direction, opposite the first direction; and, a second inner wall extending from the inner base in the fourth direction to form a second U-shape with the inner base and the first inner wall; and, a split wave spring arranged within the inner ring with the outer ring being mounted over the inner ring so as to encapsulate the washer, wherein the inner ring is displaceable with respect to the outer ring in the first and fourth directions, wherein: the first inner wall includes a first outer face with: a first portion; a first protrusion extending from the first portion in the third direction and in contact with the first outer wall; and a second portion extending beyond the first protrusion in the fourth direction; and, the second inner wall includes a second outer face with: a third portion; a second protrusion extending from the third portion in the second direction and in contact with the second outer wall; and, a fourth portion extending beyond the second protrusion in the fourth direction; or, wherein: the first inner wall includes a third distal end bent in the third direction, to contact the first outer wall; and, the second inner wall includes a fourth distal end bent in the second direction to contact the second outer wall.