... feel free to contact with us Worm Gear Screw Jacks Type NP/I, Version B: With anti-rotation guideHousing ... Worm made from ETG100, Gear made from Gbz12.Self-locking to a certain extend. Vibration, an increase in ... the spindle pitch or the useof rolling screw elements release the self-locking. In this case, e.g., a ... 0,2mm bei Größe 0) Worm Gear Screw Jacks Type NP/I, Version B: With anti-rotation guide