Precision Brass Inner Sleeve Fitting

Function Description: Sleeves fit over rotating shafts, mainly serving to protect shaft journals, reduce wear, provide sealing and resist corrosion. Typically designed as sacrificial wear‑parts, they can be easily replaced after abrasion to extend the service life of high‑value main shafts, and are widely used in pumps, valves, motors and transmission mechanisms. Shangqin Advantages: The key performance indicator for shaft sleeves lies in the coaxiality of inner and outer circles. Using Swiss‑type lathes with one‑time clamping to machine both inner and outer diameters, Shangqin achieves highly uniform wall thickness. This improves assembly efficiency and effectively avoids dynamic unbalance issues during high‑speed rotation. Technical Points: Inner‑outer coaxiality controlled within 0.01 mm; high‑precision inner‑surface finishing (Ra 0.4‑0.8 μm); materials available including stainless steel, bronze, brass and hardened steel; inner‑wall oil‑groove machining service supported.   This Pr…