12920 Precision Housing Rings,150 Pc,Assortment Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: PRE12920 Qty On Cart Features Internal rings made from zinc plated spring steel have tapered design which maintains constant pressure to prevent slippage of axles, gears and bearin... Features Back FeaturesInternal rings made from zinc plated spring steel have tapered design which maintains constant pressure to prevent slippage of axles, gears and bearings inside machinery housing.