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About product and suppliers:
        Alibaba.com offers 55,062 worm gear products. About 20% of these are speed reducers, 6% are worm gears, and 1% are other gears. 

A wide variety of worm gear options are available to you, such as plastic, stainless steel, and steel. You can also choose from nonstandard, standard. As well as from free samples, paid samples. 

There are 54,435 worm gear suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and India, which supply 98%, 1%, and 1% of worm gear respectively. 

Worm gear products are most popular in North America, Domestic Market, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 23,417 with ISO9001, 4,915 with ISO14001, and 4,519 with Other certification.