A steel shim is the thin, flat ring that sets clearance, preload, chainline, valve opening or bearing position inside a vehicle. It is small, but a 0.10 mm mistake changes shifting feel, shock damping, brake rotor runout or wheel bearing life. BONPORA supplie...

What the Shim Stack Does Inside the Damper A steel shim, also called a valve shim or shock shim, is installed inside the shock absorber piston assembly, positioned in the piston valve system or base valve system, and works in conjunction with valve seats, spr...

Steel Shim Failure Analysis: Why Valve Shims Fail and How to Replace ThemA steel shim, also called a valve shim or shock shim, is installed inside the shock absorber piston assembly. It sits in the piston valve system or the base valve system and works togeth...

Steel Shim Manufacturing: From Steel Strip to Finished Damper Component A steel shim, also called a valve shim or shock shim, is installed inside the shock absorber piston assembly. It sits in the piston valve system or the base valve system and works togethe...