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Precision Acme Lead Screws and Nuts
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Pair with a motor in automated motion and positioning applications. A tight thread fit allows these lead screws and nuts to make accurate, repeatable starts and stops. Also known as single-start and self-locking lead screws and nuts, they have a single thread that runs the length of the screw. The nut travels only when the screw turns, so your system won’t unexpectedly move when the lead screw is at rest. To ensure compatibility, please select components that have the same thread direction, thread size, and number of thread starts.
Platform Nuts—Left-Hand Thread
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Platform nuts have wide, machinable surfaces for custom mounting.
932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
Thread Size | Lg. | Wd. | Ht. | Ctr. Ht. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
932 Bearing Bronze | ||||||||||||||||
| 1/2"-10 | 1 3/4" | 2" | 1 1/8" | 5/8" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 1,200 | 1710K49 | 0000000 | ||
| 3/4"-5 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 65 | Not Rated | 2,800 | 1710K44 | 000000 | ||
| 3/4"-6 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | Acme | 1:1 | 1 | 0.167" | Acme Class 2C | Brinell 65 | Not Rated | 2,800 | 1710K47 | 000000 | ||
| 3/4"-10 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 2,800 | 1710K51 | 000000 | ||
| 1"-4 | 3" | 3" | 1 15/16" | 1 1/8" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 65 | Not Rated | 5,000 | 1710K41 | 000000 | ||
| 1"-5 | 3" | 3" | 1 15/16" | 1 1/8" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 65 | Not Rated | 5,000 | 1710K45 | 000000 | ||
| 1"-6 | 3" | 3" | 1 15/16" | 1 1/8" | Acme | 1:1 | 1 | 0.167" | Acme Class 2C | Brinell 65 | Not Rated | 5,000 | 1710K48 | 000000 | ||
| 1"-10 | 3" | 3" | 1 15/16" | 1 1/8" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 5,000 | 1710K52 | 000000 | ||
| 1 1/2"-4 | 4 1/2" | 3 5/8" | 2 9/16" | 1 1/2" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 65 | Not Rated | 11,000 | 1710K43 | 000000 | ||
Platform Nuts—Right-Hand Thread
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Platform nuts have wide, machinable surfaces for custom mounting.
932 Bearing Bronze—932 bearing bronze and 673 bronze nuts are wear resistant. They have good machinability and fair corrosion resistance.
Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a nut moves with one revolution of the lead screw.
Thread Size | Lg. | Wd. | Ht. | Ctr. Ht. | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn | Thread Fit | Hardness | Tensile Strength | Dynamic Thrust Load Cap., lb. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
932 Bearing Bronze | ||||||||||||||||
| 1/2"-10 | 1 3/4" | 2" | 1 1/8" | 5/8" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 1,200 | 1710K9 | 0000000 | ||
| 3/4"-5 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 65 | Not Rated | 2,800 | 1710K4 | 000000 | ||
| 3/4"-6 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | Acme | 1:1 | 1 | 0.167" | Acme Class 2C | Brinell 65 | Not Rated | 2,800 | 1710K7 | 000000 | ||
| 3/4"-10 | 2 1/4" | 2 5/8" | 1 5/8" | 15/16" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 2,800 | 1710K11 | 000000 | ||
| 1"-4 | 3" | 3" | 1 15/16" | 1 1/8" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 65 | Not Rated | 5,000 | 1710K1 | 000000 | ||
| 1"-5 | 3" | 3" | 1 15/16" | 1 1/8" | Acme | 1:1 | 1 | 0.2" | Acme Class 2C | Brinell 65 | Not Rated | 5,000 | 1710K5 | 000000 | ||
| 1"-6 | 3" | 3" | 1 15/16" | 1 1/8" | Acme | 1:1 | 1 | 0.167" | Acme Class 2C | Brinell 65 | Not Rated | 5,000 | 1710K8 | 000000 | ||
| 1"-10 | 3" | 3" | 1 15/16" | 1 1/8" | Acme | 1:1 | 1 | 0.1" | Acme Class 2C | Brinell 65 | Not Rated | 5,000 | 1710K12 | 000000 | ||
| 1 1/2"-4 | 4 1/2" | 3 5/8" | 2 9/16" | 1 1/2" | Acme | 1:1 | 1 | 0.25" | Acme Class 2C | Brinell 65 | Not Rated | 11,000 | 1710K3 | 000000 | ||
Ball Screws and Nuts
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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.
Platform Ball Nuts—Right-Hand Threaded
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Travel Distance per Turn—Travel distance per turn, also known as screw lead, is the distance a ball nut moves with one revolution of the ball screw.
Thread Size | Lg., mm | Wd., mm | Ht., mm | Ctr. Ht., mm | No. of Thread Starts | Travel Distance per Turn, mm | Hardness | Dynamic Thrust Load Cap., lb. | Max. Backlash, mm | Temp. Range, ° F | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Alloy Steel | ||||||||||||||
| M14 | 35 | 34 | 30 | 13 | 1 | 4 | Rockwell C58 | 1,200 | 0.1 | 5 to 175 | 6624K73 | 0000000 | ||
| M16 | 36 | 42 | 32.5 | 16 | 1 | 5 | Rockwell C58 | 1,200 | 0.1 | 5 to 175 | 6624K27 | 000000 | ||
| M20 | 35 | 48 | 39 | 17 | 1 | 5 | Rockwell C58 | 1,300 | 0.1 | 5 to 175 | 6624K29 | 000000 | ||
| M20 | 58 | 48 | 46 | 18 | 1 | 10 | Rockwell C58 | 2,350 | 0.1 | 5 to 175 | 6624K31 | 000000 | ||
| M25 | 35 | 60 | 45 | 20 | 1 | 5 | Rockwell C58 | 1,500 | 0.1 | 5 to 175 | 6624K33 | 000000 | ||
| M25 | 94 | 60 | 55 | 23 | 1 | 10 | Rockwell C58 | 7,000 | 0.1 | 5 to 175 | 6624K35 | 000000 | ||
