System of Measurement System of Measurement |
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Length Length | Show |
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Length Length | Hide |
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Diameter Diameter |
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Nut Type Nut Type |
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![]() | Externally Threaded |
Component Component |
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![]() | Ball Nut |
Thread Size Thread Size |
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Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity |
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Thread Direction Thread Direction |
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Maximum Temperature Maximum Temperature |
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Travel Distance per Turn Travel Distance per Turn |
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Material Material |
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External Thread Size External Thread Size |
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External Thread Type External Thread Type |
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Maximum Backlash Maximum Backlash |
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Minimum Temperature Minimum Temperature |
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Finish Finish |
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Number of Thread Starts Number of Thread Starts |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Hardness Hardness |
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Thread Type Thread Type |
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Selecting Compatible Lead Screws and Nuts
More
Ball Screws and Nuts

Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. Also known as single-start ball screws and nuts, they have a single thread that runs the length of the screw. They operate with more torque than fast-travel ball screws and nuts. To ensure compatibility, select components that have the same thread direction and size. Ball nuts are furnished with a tube to keep ball bearings in place. Do not remove the tube until you are ready to install the nuts onto the screws.
Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
For technical drawings and 3-D models, click on a part number.

Secure a way wiper on the end of a ball nut to sweep chips and other contaminants out of the way as it moves across the ball screw.
Thread Size | Lg. | Dia. | No. of Thread Starts | Travel Distance per Turn | External Thread Size | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash | Temperature Range, °F | Each | ||
Black-Oxide Alloy Steel | ||||||||||||
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A | 2 1/4"-2 | 6 11/16" | 3 3/8" | 1 | 0.5" | 3.137"-12 | Rockwell C56 | 19,250 | 0.015" | -40° to 300° | 00000000 | 000000000 |