System of Measurement System of Measurement |
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Thread Size Thread Size | Show |
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Thread Size Thread Size | Hide |
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Thread Type Thread Type |
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Component Component |
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 | Ball Nut |
 | Ball Screw |
Thread Direction Thread Direction |
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Travel Distance per Turn Travel Distance per Turn |
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Nut Type Nut Type |
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| Externally Threaded | Flange |
Threading Threading |
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 | Fully Threaded |
Material Material |
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Number of Thread Starts Number of Thread Starts |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Hardness Hardness |
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Tensile Strength Tensile Strength |
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Maximum Backlash Maximum Backlash |
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Number of Mounting Holes Number of Mounting Holes |
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Diameter Diameter |
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External Thread Size External Thread Size |
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Finish Finish |
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Dynamic Thrust Load Capacity Dynamic Thrust Load Capacity |
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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.
Root diameter indicates the diameter the ball screw will be after machining away the threads.
| Thread Size | Lg., ft. | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Root Dia. | Hardness | Tensile Strength, psi | Temperature Range, °F | Each | |
Alloy Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2"-5 | 1 | 1 | 0.2" | ±0.004" per ft. | 0.405" | Rockwell C56 | 85,000 | -40° to 300° | 00000000 | 000000 |
| 1/2"-5 | 2 | 1 | 0.2" | ±0.004" per ft. | 0.405" | Rockwell C56 | 85,000 | -40° to 300° | 00000000 | 000000 |
| 1/2"-5 | 3 | 1 | 0.2" | ±0.004" per ft. | 0.405" | Rockwell C56 | 85,000 | -40° to 300° | 00000000 | 000000 |
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.
Flange | ||||||||||||||
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| Thread Size | Lg. | Dia. | Dia. | Thick. | No. of Thread Starts | Travel Distance per Turn | Bolt Circle Dia. | Hardness | Dynamic Thrust Load Cap., lbs. | Max. Backlash | Temperature Range, °F | Each | ||
Black-Oxide Alloy Steel | ||||||||||||||
| C | 1/2"-5 | 2 57/64" | 1 1/16" | 2 19/32" | 17/32" | 1 | 0.2" | 2 3/32" | Rockwell C56 | 1,200 | 0.015" | -40° to 300° | 00000000 | 0000000 |