- gear box shape which allows effective heat dissipation and 100 % duty cycle
- cast iron support of the worm wheel rim
- bottom cover with outer diameter in tolerance g7, it can be used for the screw jack centring
- top cover with re-lubrication system for the ball screw: through the grease nipple (10) it is possible to put in grease which goes through the lubrication pipe (11) and reaches the ball nut. The radial lubricant seals (13) and the sealing scrapers (17) ensure the seal and create a lubricant reserve for the ball nut. This system allows to keep the ball nut constantly lubricated increasing its life.
- ball screw in quenched and tempered alloy steel
- ball nut in case-hardened and ground steel with frontal recirculation system that ensures higher performances compared to the radial system, because of greater number of balls which transmit the load
- worm with ground ZI involute thread profile (UNI 4760) in case-hardened steel
- bronze wormwheel with true involute profile ZI (UNI 4760)
- taper roller bearings that provide system high stiffness and allow to maximize the ball screw diameter thanks to the minimum radial size
- grease nipple
- lubrication pipe
- synthetic oil lubricated worm gearbox for a better heat dissipation; this allows higher input speed, improved efficiency and a longer life
- radial lubricant seal
- O-ring as lubricant seal
- NILOS seal which allows to create a chamber for the lubricant (16) of the upper bearing, that would otherwise be sparsely lubricated because not reached by the gear oil; the seal is used only in case of vertical mounting position
- bearing lubricant chamber
- sealing scraper
- oil drain plug
- breather
20 - oil level plug
21 - ball screw stop nut