Enveloping Worm Gear

We specialized in precision parts and components machining to serve the electronics, automotive parts, astronautical parts, medical appliances and hand tool industries. And  widely range of design and manufacturing including custom cnc machining, cnc machined parts, non-standard machine parts, machined casting parts and precision turned parts that the materials of hardware parts are in steel, stainless steel, brass, aluminum and plastic.
if you have special requirement about the parts material, tolerance, process, treatment,
equipment or test, such as seamless copper fin tubing, aluminum alloy 535 casting, and
glass-lined alloy casting, special paint painting, 5 axis centers, 3D Coordinate
Measurement Machines (CMM) test ... just feel free to contact us, we will try our best to meet the needs of you.

The extra precision double enveloping worms and worm gears of all sizes can steadily reach grade 3 of DIN standard. These double enveloping worm and worms gears have been successfully used as indexing drive for machine tools that have to cope with high cutting rates, endure heavy cutting load, and require high accuracy as well．

This worm set uses a special worm shape in that it partially envelops the worm gear as viewed in the direction of the worm gear axis. Its big advantage over the standard worm is much higher load capacity, However, the worm gear is very complicated to design and produce, and sources for manufacture are few.

Worms:
M=3mm
Number of stars: 1
Pitch diameter: 100mm 

· Worm gears:
M=3mm
Number of teeth: 300
Pitch diameter: 900mm 

· The double enveloping worms and worm gearing is used as the precision index driving.

· The manufacturing technology of double enveloping worm and worm gear has won the Chinese patent.

· The manufacturing technology of extra precision worms and worm gear has gained the national 1- grade award of science and technology progress.

With over 30 years' experience and hundreds of qualified personnel, EP spur gear is well-known as one of the leading manufacturers and suppliers of enveloping worm gear in China. Offering enveloping worm gear customized service, our factory is specialized in producing high precision products.