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About product and suppliers:
        Alibaba.com offers 1,401 spline coupling products. About 36% of these are shaft couplings, 3% are hydraulic parts, and 1% are pipe fittings. 

A wide variety of spline coupling options are available to you, such as universal, gear, and jaw / spider. You can also choose from steel, stainless steel, and aluminium. As well as from flexible, rigid. And whether spline coupling is nonstandard, or standard. 

There are 1,410 spline coupling suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Japan, and India, which supply 99%, 1%, and 1% of spline coupling respectively. 

Spline coupling products are most popular in North America, Western Europe, and Domestic Market. 

You can ensure product safety by selecting from certified suppliers, including 743 with ISO9001, 272 with Other, and 72 with ISO/TS16949 certification.