Sachin Enterprises

  coupling shim sold by Sachin Enterprises are metal rings to facilitate smoother movement. They help to adjust friction between parts of machinery.   The coupling shim is used to make the surfaces of two objects match up better, usually because they are not flush. The shim fills the gap between the two surfaces, making them fit together more evenly. A coupling shim is usually thin, but also may be thick. Most often, a coupling shim is made of plastic. https://www.sachinshim.com/shim.php

  Bearing shims are small metal plates that are used to create a space between two moving parts, such as a shaft and its housing. Bearings shims sold by Sachin Enterprises are metal rings to facilitate smoother movement. They help to adjust friction between parts of machinery. https://www.sachinshim.com/shim.php