Urna Engineering has developed a range of locking elements. Locking assemblies ULR-712 and its series are most suitable for securing all types of bosses and hubs on shafts and axles. These efficiently replace shrink fit, key and polygon connection of gear wheels, chain sprockets, levers, cams, cam plates, belt pulleys, brake drums, flywheels, coupling and clutches, shaft mounted gearing, flanges, rope sheaves, track wheels, impellers, ship and aircraft propellers, etc, and many unlimited applications. Size from 20 mm dia shaft to 1000 mm dia shaft.
