Introduction:
This type of worm gear box has been trusted on the driveline 
(drive train) of the center pivot irrigation system and the linear move (later move) irrigation system on North Center-dive Gear Box Of Irrigation System America, European area and Middle East. It employs light weight aluminum alloy case and major transmission parts are produced from high strength alloy. By utilization of large number sealing and dust-proof products it features light in weight, long service lifestyle and good tightness aswell.
Performance:
1. Torque capacity: 4,500 lb.in (510 N.m).
2. Ratio: 20:1,?30:1,?40:1,?50:1,?58:1, 60:1 (others offered).
3. Accepts NEMA 56-C encounter motors with 0.625”shafts, 2” long with 0.19” key slot.
4. Multiple attach bolt patterns 5”×6”, 3.38”×6.38”suit all pivots.
5. High strength aluminum bronze worm gear.