SDP/SI, is known as the go-to source for synchronous drive components. We have built a reputation among designers of small mechanisms and drives for providing quality, inch and metric timing belts and timing belt pulleys. We stock a large selection of standard sizes as well as hard-to-find components for both custom and standard applications at competitive prices.

For 50 years we have been providing our clients with pulley systems and components in small to large quantities, including OEM’s. Individual service, flexible stocking plans, customization and J.I.T. delivery are some of the benefits you receive when working with SDP/SI.

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