Housing: Aluminium, sealed against lubricant leaks and protected against dust, can be mounted in any position. Teeth: Worm gear made from plastic, worm made from steel, ground. Not self-locking. Bearing: Motor and gearbox with roller bearing. Lubrication: Maintenance free grease lubrication. Motor: DC motor 24 V. Nominal motor speed 3000 rpm, worm pinned on motor shaft. Free lead ends. Sense of rotation can be changed by swapping leads over. Protection class according to VDE 0530: IP 41 Insulation class according to VDE 0530: F Operating mode as per VDE 0530: S1