Bowex M-28 Coupling Sleeve

The Bowex M-28 Gear Coupling Sleeve is the nylon (polyamide) inner sleeve used in BoWex M-28 couplings to join two gear hubs in a power-transmission assembly. Manufactured as part of the BoWex M series, the sleeve is designed to pair with two BoWex M hubs and DIN EN ISO 4029 setscrews to form a complete gear-coupling assembly. Typical outer-diameter specifications for the M-28 sleeve are around 64 mm with a length near 45 mm (some listings cite 65 mm OD and 46 mm long, depending on the production batch). This sleeve, together with its corresponding hubs and hardware, enables a compact, robust coupling configuration used in industrial gear assemblies where precise shaft alignment is paired with torque transmission.