Custom Machine & Tool Co., Inc. specializes in precision timing belt pulleys and keyless locking devices

What we do.

Custom Machine and Tool Co. Inc. is a leading US manufacturer of precision timing pulleys, drive systems and components for the motion control and power transmission markets.

Our story.

Bringing it to the next level and beyond!... (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)

Learn about the basics of belt drives, design and performance considerations for various systems and the benefits of CMT’s Concentric Maxi Torque bushing system.

Get your Guide here (read more)

The Concentric Maxi Torque is a unique bushing connection system. A single screw locks the low taper angle split bushing in place and eliminates all of the existing attachment issues.

1. Improved hub-to-shaft concentricity.

Radial run out less than .001/.026 mm as assembled enables customers to attain higher drive speeds, reduce unwanted vibration, and maintain concentricit... (read more)

Did you know?

Effective ways of handling paper has been a problem ever since the ancient Greeks started writing on papyrus eons ago. After all, Henry Brown's “receptacle for storing and preserving papers” (the filing cabinet) wasn't invented until 1886. Today, be it in the office, mail room, print shop or factory floor, speed and efficiency are paramount to your succes... (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)

From food processing to medical instrumentation, material choice matters.
Our pulley stock is available in food-grade stainless steel for washdown and hygienic environments, as well as aluminum, carbon steel, and engineered polymers to meet a wide range of performance and cost requirements.
Need something specific? We routinely manufacture pulley stock in custom materials, leng... (read more)

Say goodbye to shaft damage from set screws. Discover the difference our Concentric Maxi-Torque bushing brings to timing pulley applications. Reusable, repositionable, and engineered for reliable, shaft-friendly performance. (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)

Long lead times are still one of the biggest production bottlenecks we see.

Pulley stock is a simple way to stay moving by machining timing pulleys in-house without waiting on custom runs.
Aluminum, steel, stainless (including food-grade), and more available upon request.

Curious how others are handling lead time pressure right now? (read more)

The Concentric Maxi Torque is a unique bushing connection system. A single screw locks the low taper angle split bushing in place and eliminates all of the existing attachment issues.

1. Improved hub-to-shaft concentricity.

Radial run out less than .001/.026 mm as assembled enables customers to attain higher drive speeds, reduce unwanted vibration, and maintain concentricit... (read more)

Custom Machine & Tool Co., Inc. has been the preferred manufacturer of timing pulley stock with fast delivery for OEM's and distributors for over 50 years.

Simply click on the Product Number within the catalog below to request your quote!
We'll guarantee shipment of up to 5 pieces of the sizes not excluded in catalog below within 72 hours (3 business days) o... (read more)

Custom Machine & Tool Co., Inc. has an extensive inventory of stamped aluminum and steel flanges available for purchase. (read more)

 A single screw locks the low taper angle split bushing in place and eliminates all of the existing attachment issues. (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. (read more)

Why mark with laser

• Mark permanence----Once applied it remains with the product for life. There is no chance of fading or falling off.
• Graphic flexibility----Any type of logo, bar code, 2D Data-Matrix bar code, patent number, trademark, alpha-numeric, icon, symbol, or graphic design can be applied in almost any shape and size.
• Pr...

A variety of manual and cnc lathes gives us the capability of turning parts
as small as .250" diameter to as large as 12.000" diameter.
Live tooling allows us to add many additional part features while turning,
providing a cost effective manufacturing process. (read more)

CNC, Shaper, and traditional gear hobbers allows us to cut all of our precision and custom syncronous timing pulleys along with a variety of spur gears in sizes of .25 inch diameter up to 16.00 inch diameter with lengths up to 36.00 inches long. (read more)