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About product and suppliers:
        Alibaba.com offers 1,344 spline coupling products. About 33% of these are shaft couplings, 28% are shafts, and 4% are machining. 

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

There are 1,339 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 747 with ISO9001, 261 with Other, and 81 with ISO/TS16949 certification.