... Configurations:Protective Tube, Rubber Bellows, Electric Motor, Hand Wheel, Inverter, Limited Switches, Linking Shaft, Coupling, Pillow Block Bearing, Counter ... Speed Max 6750 MM/MIN.* Load Capacities From 15KN to 90KN As Standard.* Self Locking Trapezoidal Screw, Spiral Bevel ... of a self-locking trapezoidal screw,no special brake is required to prevent the jack from lowering under load. Spiral bevel ...