Taper bushings and components

A taper bushing has a tapered outside surface that seats in the matching tapered bore of a sheave, sprocket, gear or coupling hub. Tightening the screws clamps it onto the shaft and locks the hub in a firm, concentric fit, and it comes off later without marking the shaft. You select it by hub system, bushing size and shaft diameter.

Every system uses its own taper, so bushings do not cross over between systems. At DODGE, TAPER-LOCK and QD are split bushing systems, and Split taper is the name of that bushing type; S16-4 and S20-6 are bushing part numbers to be ordered in full. At SKF, the size at the end of the part number is the bore in inches: PHF E-1, PHF E-1-1/2 and PHF E-1-15/16 fit 1, 1-1/2 and 1-15/16 inch shafts.

They show up in gearboxes, pumps, fans, conveyors and power transmission equipment. When installing, clean both tapered surfaces, tighten the screws evenly and stick to the specified torque so the bushing doesn't work loose or distort the hub.

Brands we carry: DODGE and SKF. Send us on WhatsApp or by email the bushing part number, the hub part number or the part number of the sheave or pulley it goes into, plus the shaft diameter, and another brand's equivalent if you have one. We'll confirm the right part number and send your quote shortly.