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About product and suppliers:
        Alibaba.com offers 1,088 planetary gear set products. About 31% of these are spur gears, 11% are gearboxes, and 8% are speed reducers. 

A wide variety of planetary gear set options are available to you, such as iron, plastic, and steel. You can also choose from free samples, paid samples. 

There are 1,088 planetary gear set suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of planetary gear set respectively. 

Planetary gear set products are most popular in Southeast Asia, North America, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 340 with ISO9001, 134 with Other, and 52 with ISO14001 certification.