DIN 988 shims don't spread clamping load. They set exact axial clearance. These thin, precise washers come in fine thickness steps, so you can stack them to fine-tune end-float in gearboxes, bearings and precision assemblies. They make up for manufacturing tolerances between mating parts, so the assembly runs smoothly without binding or rattling. They're made from spring steel or stainless steel, which keep the same thickness from one shim to the next. Their diameters match standard shaft and bore sizes.
