Industrial Jewels Pvt. Ltd. Manufactures Top Pin Bearing for KWH Meters. Industrial Jewels Pvt. Ltd. Is certified with ISO 9001:2000 quality system standards. These Top Pin Bearings are used to guide the upper side of the rotor shaft in an electro-mechanical meter. The pins having the right radius are selected to ensure minimum wear-out during opening. Its main body, hexagonal nut and pin holder is made of brass material and the pin is made of stainless steel.