Screw Jack
Rack Jack
Outline
This type is capable of two-way conversion: it can directly convert rotary motion into linear motion, or linear motion into rotary motion.
Features
- – Capacity: 2kN/4kN
- – It allows high-speed linear motion, even when the input shaft is rotating at low speed.
- – The jack delivers excellent mechanical efficiency with less power loss.
- – This type has two mounting surfaces: one is in parallel with the rack’s motion, and another at the right angle. You can choose whichever surface is convenient for your use
- – You can choose from 3 types of shaft end fittings, and wide-ranging options are available, including dustproof bellows to protect the rack shaft, limit switch for control, and RC encoder.
- – The jack does not have a self-locking function, so it is required to install a brake.
Specifications
| Series/Size Code | JMR | JSR |
|---|---|---|
| Capacity | 2kN | 4kN |
| Rack shaft diameter / module | 20mm・M2 | 30mm・M3 |
| Efficiency | 0.90 | 0.90 |
| Maximum allowable power per jack | 0.29kW | 0.58kW |
| Maximum speed of rack shaft | 8000mm/min | 8000mm/min |
| Required input torque at maximum load | 38N・m | 113N・m |
| Rack shaft lead per rotation of input shaft | 106.8mm/rotation | 160.2mm/rotation |
| Maximum input rotation speed at maximum load | 75min-1 | 50min-1 |
| Input shaft allowable overhang load | 130N | 700N |
| Amount of filled grease | 50g | 60g |
| Operating temperature range | -15〜80℃ | -15〜80℃ |
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Screw Jack
