Custom U Joints

Curtis u joints can be made to order in a multitude of materials and hub sizes and configurations.

OEMs often have needs for new and redesigned products for universal joints that can not be satisfied with off-the-shelf u joint designs. Be it an uncommon shaft design, unusually high speeds or torque, or otherwise harsh operating conditions, we can design and manufacture a custom u joint along with the special hub machining needed to fit your application.

Similarly, end users frequently have the need to replace worn or under-specified u joints in the machinery in their plants with ones that are easier to maintain and have a longer service life. We can provide u joints with custom alterations such as harder materials or longer than standard hubs to easily solve these problems.

Our custom u joints can be made from most metals, in sizes ranging from 3/8″ to 4″ O.D.

Modified U Joints

Often times a Curtis modified standard universal joint can satisfy a user or OEM’s needs. Modified u joints are produced from standard off the shelf u joints (i.e., catalog dimensions shown in the tables on this site and materials such as alloy steel and 303 stainless steel), and are usually more cost effective and/or have shorter lead times than full custom u joints.

Modified u joints typically involve addition of keyways, setscrew holes and cross pin holes to hubs, and turned O.D.’s and splined holes. The photos above show the variety of custom and modified u joints that we have manufactured over the years.

Application Support is Our Strength

Our application engineers are seasoned power transmission experts with extensive experience designing and applying universal joints. Whether your solution dictates a stock, modified or custom u joint, we can partner with you from concept development, design and prototyping, all the way through production.

Call our Application Hotline at 888-287-8477 to speak with a real person who will help you specify the best u joint for your application. Or fax a drawing or sketch of the u joint that you are specifying along with a brief description of your application to 413-737-8430 and we will get back to you right away.