Gbm manufacturing pvt ltd is one of the major manufacturers of variety mechanical power transmission couplings & expansion joints in india. The coupling product range includes gear coupling, pin-bush coupling, resilient coupling, disc coupling, tyre coupling and in expansion joints it includes non-metallic fabric type, multi layer fabric belt, metallic & rubber. For metallic expansion joint the company follow ejma standard. Non-metallic expansion joints are manufactured as per astm standard. Roto gear curved tooth couplings are suitable for any conceivable mechanical power transmission drives in all industries, large / medium / small. It is compact and lighter and thus suitable for installation where space is a constraint.Roto gear coupling mainly comprises two hubs with external machine-cut teeth of specially designed configuration, two flanged sleeves with internal teeth to match the two hubs and a set of machine finished fasteners to bolt the two hubs and the two flanged sleeves when in installed position. Specially designed sealing arrangement is provided to prevent leakage of grease and ingress of outside dirt / water.Roto gear coupling have its components manufactured out of properly treated steels of quality which are best suited for all industrial mechanical power-transmission systems. Teeth profile are of specially designed configuration to provide ample mechanical flexibility and compensation of parallel, angular and axial misalignment of the connected shafts.Roto gear couplings are available in following executions: full geared flexible type ; half geared flexible type ; mill motor type ; spacer type ;brake drum type ;vertical type ;floating shaft type .