replacing a worm gearbox with a helical

[Feg]

Hi,

I am looking for your thoughts on replacing an old worm gearbox that is no longer readily available. I have looked up the original catalogue and it does not show me exatly the type I have but they do have similar but the information is a given in different ratings in the 2 sections. What I have is a right angle worm gearbox which has a helical geared motor driving it giving a final speed of .14 rpm and a power of .18Kw. If I look at the catalogue it gives the main gearbox as follows ratio 32/1 with 1500 input speed T2N 1990 Nm, T2max 2660 Nm, now if I look in another section they show the same main gearbox but with the following 150 input speed T2N 3970 Nm, 5200 T2 Nm T2max. Now I am looking at repalcing this with a modern helical gearbox and I can match the speed and Kw but I am not sure which torque rating I sure use. I think the different ratings are mainly to do with the slower input speeds maybe the worm performs better at the slow speeds but i dont know if a helical gearbox does the same. Any ideas or tips would be welcome.

Thanks in advance.

 

[tygerdawg]

Gearmotors are used everywhere and they are almost a commodity. Replacements from Old BrandX to New BrandY happen all the time. Get your specs together, and call your local mechanical transmission distributor. A good distributor will get you set up with a suitable unit, and also any required couplings, spacer plates, or anything else to give you as nearly a pain-free drop-in solution as possible.

Worm versus helical: if I recall correctly, worms are less efficient and a little more forgiving for shock loads. Evaluate your loading situation to determine the correct style (if it even matters). Be sure to enlist the help of the gearmotor manufacturer's Applications Engineering team to help you figure this out.

TygerDawg
Blue Technik LLC
Virtuoso Robotics Engineering

http://www.bluetechnik.com