Rack-and-pinion screw jack 4678

metal

Use: holding the jack steady, it is possible to raise or lower loads fastened at the top of the rack. On the other hand, by fastening the rack you will move the reduction gear, on which accessory support brackets or plates can be secured. Suitable for applications where the load to be handledrequires a torque of more than 4.5 Nm (limit of the version Part 4700). State of supply complete with reduction gear, rack, knob and brake. Characteristics: reduction gear bodyin reinforced polyamide, 1 worm screw in phosphated steel, 1gearwheel in reinforced metal,1 rackin galvanised steel with end-stop composed of a UNI5739 M6x25 hex head screw and M6 screw washer, 1 knob fastened with a UNI5739 M6x12 hex head screw and M6 screw washer and 1 polyamide screw cap, 4 UNI5739 M6x55 hex head screws, 4 UNI7474 M6 self-locking nuts and M6 screw washers. Nuts and bolts material see table. Rack axial play: 0.5 mm ÷1.0 mm Max. rack misalignment angle: 1° Colours: The blackbody distinguishes the jack with transmissible torque of 12 Nm from the 4.5 Nm version (orange) Part 4700. Warning: The brakeprevents any loss of position caused by external factors (e.g. vibrations); if you use the knob for movement, the brake will not fully lock the position in order to protect the internal transmission devices.