A 20 mm grommet specification must identify the measured feature. Check the drawing for mounting-hole dimensions, panel thickness, passage and flange clearance.
Define the function before ordering. Edge protection for a cable is different from sealing against oil or supporting a vibrating component. Select the profile and compound for the actual temperature, fluid and mechanical requirements.
A grommet cannot by itself guarantee a machine's service life or correct an unsuitable lubrication arrangement. Follow the equipment's requirements and verify the selected part in the assembly. For custom manufacture, provide a drawing or existing sample for review.
