Trapezoidal screw jack GSZ series

safety nut

Nominal speed: 1500 rpm max. drive shaft speed: 3000 rpm Screw size standard: 16x4 Housing material: Aluminium, corrosion-resistant Worm shaft: steel, case-hardened, ground Weight of screw jack body: 0,6 kg Weight of screw/m: 1,21 kg Gearbox lubrication: synthetic fluid grease Screw lubrication: grease lubrication Gearbox operating temperature: max. 60°, higher on request Input torque (at nominal speed): Moment of inertia: N: 0,081 kg cm² / L: 0,037 kg cm² Screw: Rotating (R) Use the optimum lubricant for a long service life! These lubricants have been carefully selected for the requirements of the screw jack. A safety nut is specially applied in such cases where the rupture of the screw may be of danger for people. Safety nut may also be used in other devices to protect against damage of machinery and outages. Wear After a maximum of 25% of the thread is worn out, the support nut (R) or the gear (S) needs to be replaced. Monitoring It is necessary to perform periodic checks and to record the wear or the thread alignment (according to the time in operation). This enables to plan the replacement soon enough to avoid the outage of the equipment. Electronic monitoring Electronic monitoring will signal when the approximate level of 25% wear is reached and this could be immediately displayed at the central location. Wear parts replacement may be organised in a timely manner.