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Ball Screws and Nuts
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A |
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.
Ball Screws with One Machined End—Right-Hand Threaded
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Ball screws with one machined end fit into an end support and are ready to connect to a motor. To adjust the length, the non-machined end can be cut to size.
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.
Root Diameter—Root diameter indicates the diameter the ball screw will be after machining away the threads.
Machined End | Keyway | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Thread Size | Lg., ft. | No. of Thread Starts | Travel Distance per Turn | Accuracy for Travel Distance per Turn | Root Dia. | Shoulder Lg. | Overall Lg. | Thread Size | Dia. | Lg. | Wd. | Hardness | Tensile Strength, psi | Temp. Range, ° F | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Alloy Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5/8"-5 | 2 | 1 | 0.2" | ±0.007"/1 ft. | 0.5" | 2" | 3 19/64" | 0.469"-32 | 3/8" | 1 1/4" | 1/8" | Rockwell C56 | 72,500 | -65 to 300 | 3405N446 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5/8"-5 | 4 | 1 | 0.2" | ±0.007"/1 ft. | 0.5" | 2" | 3 19/64" | 0.469"-32 | 3/8" | 1 1/4" | 1/8" | Rockwell C56 | 72,500 | -65 to 300 | 3405N447 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 5/8"-5 | 6 | 1 | 0.2" | ±0.007"/1 ft. | 0.5" | 2" | 3 19/64" | 0.469"-32 | 3/8" | 1 1/4" | 1/8" | Rockwell C56 | 72,500 | -65 to 300 | 3405N448 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4"-5 | 2 | 1 | 0.2" | ±0.007"/1 ft. | 0.65" | 2 3/16" | 3 3/16" | 0.586"-32 | 1/2" | 1" | 1/8" | Rockwell C56 | 92,500 | -65 to 300 | 3405N449 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4"-5 | 4 | 1 | 0.2" | ±0.007"/1 ft. | 0.65" | 2 3/16" | 3 3/16" | 0.586"-32 | 1/2" | 1" | 1/8" | Rockwell C56 | 92,500 | -65 to 300 | 3405N451 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3/4"-5 | 6 | 1 | 0.2" | ±0.007"/1 ft. | 0.65" | 2 3/16" | 3 3/16" | 0.586"-32 | 1/2" | 1" | 1/8" | Rockwell C56 | 92,500 | -65 to 300 | 3405N452 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1"-4 | 2 | 1 | 0.25" | ±0.007"/1 ft. | 0.84" | 2 23/32" | 4 1/32" | 0.781"-32 | 5/8" | 1.13" | 0.188" | Rockwell C56 | 122,000 | -65 to 300 | 3405N453 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1"-4 | 4 | 1 | 0.25" | ±0.007"/1 ft. | 0.84" | 2 23/32" | 4 1/32" | 0.781"-32 | 5/8" | 1.13" | 0.188" | Rockwell C56 | 122,000 | -65 to 300 | 3405N454 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 1"-4 | 6 | 1 | 0.25" | ±0.007"/1 ft. | 0.84" | 2 23/32" | 4 1/32" | 0.781"-32 | 5/8" | 1.13" | 0.188" | Rockwell C56 | 122,000 | -65 to 300 | 3405N455 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Externally Threaded Ball Nuts—Right-Hand Threaded
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A |
Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.
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.
Style | Thread Size | Lg. | Dia. | No. of Thread Starts | Travel Distance per Turn | External Thread Size | Hardness | Dynamic Thrust Load Cap., lb. | Max. Backlash | Temp. Range, ° F | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Black-Oxide Alloy Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A | 3/8"-8 | 1" | 3/4" | 1 | 0.125" | 11/16"-28 | Rockwell C56 | 170 | 0.015" | -65 to 300 | 3405N458 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A | 1 1/2"-2 | 5 9/16" | 2 5/8" | 1 | 0.5" | 2 23/64"-18 | Rockwell C56 | 12,900 | 0.015" | -65 to 300 | 3405N461 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A | 1 1/2"-4 | 3" | 2 3/32" | 1 | 0.25" | 1 31/32"-18 | Rockwell C56 | 4,250 | 0.015" | -65 to 300 | 3405N462 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A | 2 1/4"-2 | 6 11/16" | 3 3/8" | 1 | 0.5" | 3.137"-12 | Rockwell C58 to Rockwell C62 | 21,306 | 0.015" | -65 to 300 | 3405N731 | 00000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Corrosion-Resistant Ball Screws and Nuts
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Ball Nuts, Externally Threaded Nut, Style A |
Suitable for use in harsh environments, these ball screws and nuts are made of stainless steel. 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 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.
Externally Threaded Ball Nuts—Right-Hand Threaded
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Style A |
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.
Style | Thread Size | Lg. | Dia. | No. of Thread Starts | Travel Distance per Turn | External Thread Size | Hardness | Dynamic Thrust Load Cap., lb. | Max. Backlash | Temp. Range, ° F | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
17-4 PH Stainless Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| A | 3/8"-8 | 1" | 3/4" | 1 | 0.125" | 0.664"-32 | Rockwell C38 | 25 | 0.007" | -65 to 300 | 6641K9 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fast-Travel Ball Screws and Nuts
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Ball Nuts, Externally Threaded Nut, Style C |
Multiple thread channels (also known as thread starts) create faster linear travel than ball screws with a single thread start. Internal ball bearings provide smooth low-friction travel in applications that require high speeds, accurate positioning, and repeatable movement. To ensure compatibility, select components that have the same thread size and number of thread starts. 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.
Externally Threaded Ball Nuts—Right-Hand Threaded
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Style C |
Black-Oxide Alloy Steel—Black-oxide alloy steel ball nuts have mild corrosion resistance.
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.
Wipers—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.
Ball Screw Nuts | Wipers | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Style | Thread Size | Lg. | Wd. | Ht. | Dia. | No. of Thread Starts | Travel Distance per Turn | External Thread Size | Hardness | Dynamic Thrust Load Cap., lb. | Max. Backlash | Temp. Range, ° F | Each | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Black-Oxide Alloy Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| C | 1 1/2"-2 | 3 3/4" | 2 1/4" | 2 1/4" | 2 5/8" | 2 | 1" | 2 1/4"-20 | Rockwell C56 | 8,000 | 0.015" | -65 to 300 | 3405N467 | 0000000 | 2528N42 | 0000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
