Introduction:
This kind of worm gear box has been widely used on the driveline (drive train) of the guts 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 main transmission parts are manufactured from high strength alloy. By utilization of lot sealing and dust-proof gadgets it features light in weight, long service existence and good tightness as well.
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 obtainable).
3. Accepts NEMA 56-C face motors with 0.625”shafts, 2” long with 0.19” key slot.
4. Multiple attach bolt patterns 5”×6”, 3.38”×6.38”match all pivots.
5. High strength light weight aluminum bronze worm gear.