Product Announcements:
Timing Pulleys (metric)

SDP/SI manufactures precision HTD® timing belt pulleys and drive components for OEM and industrial applications, offering online ordering, engineering support, CAD resources, custom belt widths, and scalable solutions from prototype development through high-volume production. Read more...

SDP/SI offers a wide range of stock mechanical components online, including timing pulleys, timing belts, precision gears, bearings, couplings, shafting, and gearboxes. Standard inch and metric products ship quickly, supported by engineering expertise, CAD models, and selector tools. Read more...

Custom Machine & Tool Co. Inc. has just launched an online interactive CAD catalog powered by 3Dfindit, giving you instant access to configurable 3D CAD models and datasheets for our Concentric Maxi Torque bushings and In-Stock timing pulleys.
What you can now do online:
• Select the right Concentric Maxi Torque bushing or pulley configuration
• Download CA... Read more...

Would a 72-hour GUARANTEED shipping of your pulley stock order help you?

Timing Belt Pulley Stock IS OUR BUSINESS!

Timing Pulley Stock with a Promise! Custom Machine & Tool Co., Inc. has been the preferred choice for pulley stock by OEM’s nationwide for over 50 years. We GUARANTEE that aluminum or steel pulley stock order of up to 5 pieces will be sh... Read more...

Custom timing pulleys don’t always need to be custom.
By designing around in-stock timing pulleys paired with our Concentric Maxi Torque® bushing, you can:
✔ Avoid custom pulley R&D
✔ Use interchangeable shaft sizes
✔ Reduce upfront and long-term costs
✔ Keep designs flexible for future changes
It isn't always about... Read more...

SDP/SI offers high-quality metric-sized timing belt pulleys in a variety of materials, sizes or finishes. They can be machined or molded to fit your specific requirements. With a quick turn-around rate, combined with technical and engineering support, SDP/SI is the only source you need for all of your applications. Read more...