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Metric Fast-Travel Ultra-Precision Lead Screws and Nuts
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Multiple thread channels (also known as thread starts) create faster linear travel than lead screws with a single thread start. Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these lead screws and nuts provide increased nut life and more reliable movement in automated systems. To ensure compatibility, select components that have the same thread size and number of thread starts.
Lead Screw—Right-Hand Thread
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303 Stainless Steel—303 stainless steel lead screws have good 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., mm | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Hardness | Tensile Strength, psi | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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303 Stainless Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M2 × 0.5 mm | 50 | Metric Rounded Trapezoidal | 2:1 | 2 | 1 | ±0.089 mm/300 mm | Brinell 160 | 90,000 | 97783A110 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Metric Ultra-Precision Lead Screws and Nuts
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Operating with less backlash (play) than Metric Precision Acme Lead Screws and Nuts, these provide increased nut life and more reliable movement in automated systems. 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, select components that have the same thread size, thread type, thread size, thread pitch, and number of thread starts.
Lead Screw—Right-Hand Thread
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303 Stainless Steel—303 stainless steel lead screws have good 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., mm | Thread Type | Speed Ratio | No. of Thread Starts | Travel Distance per Turn, mm | Accuracy for Travel Distance per Turn | Hardness | Tensile Strength, psi | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
303 Stainless Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| M2 × 0.5 mm | 50 | Metric Rounded Trapezoidal | 1:1 | 1 | 0.5 | ±0.089 mm/300 mm | Brinell 160 | 90,000 | 7549K51 | 000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Ball Screw/Splines and Bearings
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From one compact system, transmit linear or rotary motion or both at once (sometimes called spiral motion). Because of these different motions, these ball screw/splines and bearings create efficient, fluid movements in complex automated applications, such as pick-and-place robots.
The ball bearings move smoothly and precisely, even at high speeds. They're powered independently, so you can drive one bearing at a time or both together to coordinate movements.
The ball screw/splines are hardened on the surface, so they stand up to repeated motion. They’re also hollow, so you can run electrical wiring, compressed air tubing, coolants, or lubricant through their center.
Spline | Thread | Ball Screw Bearing | Ball Spline Bearing | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Lg., mm | No. of | Lg., mm | Direction, ° F | Thread Direction | ID, mm | Lg., mm | Root Dia., mm | OD, mm | Overall Lg., mm | Dynamic Load Cap., lb. | Static Load Cap., lb. | OD, mm | Overall Lg., mm | Dynamic Load Cap., lb. | Static Load Cap., lb. | Max. Dynamic Torque, in·lbf | Each | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
1055 Carbon Steel | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
16 mm Dia. (Tolerance: -0.018 mm to 0 mm) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 500 | 6 | 360 | 5 to 176 | Right Hand | 11 | 500 | 15.15 | 32 | 40 | 870 | 1,610 | 31 | 50 | 1,590 | 2,830 | 277 | 4049N13 | 000000000 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Fast-Travel Ball Screws and Nuts
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Ball Nuts, Externally Threaded Nut, Style A | Ball Nuts, Externally Threaded Nut, Style B |
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 A | Style B |
Carbon Steel—Carbon steel ball screws and nuts are case hardened, so they resist wear better than standard carbon steel. However, they are less corrosion resistant than black-oxide alloy steel screws and nuts.
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.
