High-Precision Axial Spacer Bushing

When multiple components are stacked on the same shaft, even if every part is within tolerance, cumulative error can push the final axial clearance outside the design range — causing anything from running noise to premature bearing failure. A spacer bushing absorbs that cumulative error with a sleeve of precisely controlled length. Parallelism and perpendicularity of both end faces are the critical specs — if the faces aren't flat, the spacer introduces new error rather than removing it. We hold tight control on length and end-face parallelism, especially where multiple spacers are stacked together, widely used in bearing positioning and gearbox internal isolation.