Ball Screws and Lead Screws
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Motorized Ball Screw Assemblies
| MAX Horizontal Payload | 2.144 kN (482 lb) |
| MAX Stroke | 1650 mm (65 inches) |
| MAX Rotational Speed | Up to 5,000* RPM |
| * For faster options, contact factory |
62 Products
Motorized Lead Screw Assemblies
| MAX Horizontal Payload | 1.16 kN (260 lb) |
| MAX Stroke | 1650 mm (65 inches) |
| MAX Rotational Speed | Up to 2,500* RPM |
| * For faster options, contact factory |
26 Products
Miniature Ball Screw Assembly featuring a 6mm diameter with a 1mm lead, a 150mm length and a cylindrical nut design that enables a more compact assembly compared to flanged nuts. Optimized for compact applications requiring high accuracy and reliability. Compact design with a 6mm diameter for precise linear motion in..
$131.21
Miniature Ball Screw Assembly with a Cylindrical Nut and a 500mm length, maximizing the travel distance. With a 10mm diameter and a 2mm lead, it's tailored for applications requiring extended reach without sacrificing precision or load capacity. Extended 500 mm length for maximum travel in the BSR series. 10 mm..
$165.52
Lead Screw with a regular Rectangle Nut featuring a 10mm diameter, 1mm lead, and a length of 254mm, made from precision-rolled 300 Series Stainless Steel and coated with PTFE to prevent flaking. With exceptional lead accuracy, this assembly exceeds industry standards, achieving unmatched straightness tolerances, a smoother finish, and greater..
$72.57
Miniature Ball Screw Assembly with an 6mm diameter Grade 10 Ball Screw. Combining speed with extended length, the 150mm version offers the benefits of a 2mm lead, suitable for applications requiring quick positioning over longer distances. Cylindrical nut with external thread facing right External threads allow for simple and secure..
$143.33
Miniature Ball Screw Assembly with a Cylindrical Nut boasting an 8mm screw diameter for enhanced rigidity and a 1mm lead for fine motion control, all within a 150mm length. Enhanced design features include polymer wipers and a multi-liner ball return system. 8 mm diameter provides increased strength for higher load..
$131.21
Miniature Ball Screw Assembly with an 8mm diameter Grade 10 Ball Screw. Combining speed with extended length, the 250mm version offers the benefits of a 2.5mm lead, suitable for applications requiring quick positioning over longer distances. Flanged nut to the right Extended travel capabilities with enhanced lead for rapid positioning. Durable..
$190.28
Miniature ball screw assembly, 6mm diameter, 2mm lead, 250mm length — delivering faster travel per revolution while maintaining precision in a compact form factor. BSR series with Grade 10 accuracy class for reliable linear motion in space-constrained applications. Cylindrical nut with external thread facing right External threads allow for simple..
$155.09
Miniature Ball Screw Assembly with a 10mm diameter, grade 10 class. Combining speed with extended length, the 500mm version offers the benefits of a 2mm lead, suitable for applications requiring quick positioning over longer distances. Cylindrical nut with external thread facing right External threads allow for simple and secure mounting..
$177.64
Miniature Ball Screw Assembly with an 8mm diameter Grade 10 Ball Screw. Combining speed with extended length, the 250mm version offers the benefits of a 2.5mm lead, suitable for applications requiring quick positioning over longer distances. Cylindrical nut with external thread facing right External threads allow for simple and secure..
$158.03
Miniature ball screw assembly with an 8 mm diameter Grade 10 screw and 2 mm lead, combining precise motion with a longer 250 mm travel for fast positioning over extended distances. A cylindrical nut with right-hand external threads enables simple, secure mounting, while precision-rolled construction maintains accuracy across the full..
$153.13
Miniature Ball Screw Assembly with an 8mm diameter Grade 10 Ball Screw. Combining speed with extended length, the 250mm version offers the benefits of a 1mm lead, suitable for applications requiring quick positioning over longer distances. Cylindrical nut with external thread facing right External threads allow for simple and secure..
$153.13
Ball Screw Assembly with a cylindrical nut, 6mm Ø, 1mm lead, 250mm length. This 250 mm version extends the capabilities of the BSR series, maintaining the compact and efficient design while providing additional travel. 6 mm diameter and 1 mm lead for precise and controlled motion. Suitable for applications requiring..
$153.13
Miniature Ball Screw Assembly with an 10mm diameter Grade 10 Ball Screw. Combining speed with extended length, the 200mm version offers the benefits of a 2mm lead, suitable for applications requiring quick positioning over longer distances. Cylindrical nut with external thread facing right External threads allow for simple and secure..
$148.22
Miniature Ball Screw Assembly with an 8mm diameter Grade 10 Ball Screw. Combining speed with extended length, the 150mm version offers the benefits of a 2.5mm lead, suitable for applications requiring quick positioning over longer distances. Cylindrical nut with external thread facing right External threads allow for simple and secure..
$146.27
Miniature Ball Screw Assembly with an 8mm diameter Grade 10 Ball Screw. Combining speed with extended length, the 150mm version offers the benefits of a 2mm lead, suitable for applications requiring quick positioning over longer distances. Cylindrical nut with external thread facing right External threads allow for simple and secure..
$143.33
Miniature Ball Screw Assembly with an 8mm diameter, grade 10 accuracy. Combining speed with extended length, the 150mm version offers the benefits of a 1mm lead, suitable for applications requiring quick positioning over longer distances. Cylindrical nut with external thread facing right External threads allow for simple and secure mounting..
$143.33
Miniature Ball Screw Assembly with an 6mm diameter Grade 10 Ball Screw. Combining speed with extended length, the 150mm version offers the benefits of a 1mm lead, suitable for applications requiring quick positioning over longer distances. Cylindrical nut with external thread facing right External threads allow for simple and secure mounting..
$143.33
Miniature Ball Screw Assembly with a Flanged Nut, an 8mm screw diameter, a 2mm lead and 250mm length - This specific model boasts a user-friendly flanged nut to the right, enabling effortless integration into your assemblies. It is designed for secure mounting to plates or blocks, courtesy of the conveniently..
$185.37
Linear Ball Screw Assembly with a cylindrical nut, 6mm Ø, 1mm lead, 250mm length. This 250 mm version extends the capabilities of the BSR series, maintaining the compact and efficient design while providing additional travel. 6 mm diameter and 1 mm lead for precise and controlled motion. Suitable for applications..
$141.01
Miniature Ball Screw Assembly with a 250mm length, an 8mm screw diameter and 1mm lead for precision positioning. The cylindrical nut design helps in the tightest of spaces. 250 mm length for increased linear travel in compact environments 8 mm diameter enhances the assembly's load-carrying capabilities Fine control with a..
$141.01
Ball screws and lead screws are threaded rods that typically rotate to drive matching threaded, load-carrying nuts axially without nut rotation, except in captive pusher designs where the nut rotates and the screw moves axially without rotating. Rotating motion is thus converted to linear motion as moving threads on one component force stationary threads on the other. The direction of linear motion is determined by the combination of right or left thread handedness and rotation direction, while screw lead (distance traveled per full rotation) and rotation speed determine how far and how fast the nut or screw moves axially. Ball screws use recirculating balls for high efficiency, while lead screws use sliding thread contact for simpler, more cost-effective motion control.
Ball screws use helical grooves to guide the recirculating ball bearings within the nut, enabling low-friction linear motion, high efficiency, and repeatable accurate travel. Our precision-rolled 1050 steel ball screws are produced in the USA and are available in 6, 8, and 10 mm diameters with 1, 2, and 2.5 mm leads, offering six metric screw-and-lead combinations. Ball screw nuts are available in cylindrical or flanged configurations and include a multi-liner ball return system for recirculation, along with polymer seals for contaminant protection. Ball screw nuts are also available in two fits: Standard Backlash (0.05mm max) and Transitional Backlash (0.008mm to ≤3% preload).
Lead screws rely on direct sliding contact between the screw threads and a matching nut to convert rotary motion into linear movement. PTFE-coated stainless steel lead screws provide corrosion resistance, low wear, reduced friction, and minimal flaking. They are available in 6, 8, 10, 12, and 16 mm diameters with a wide range of lead options, and can be paired with round, triangular, or Constant-Force Anti-Backlash nuts to minimize play. Certain ball screw and lead screw combinations are compatible with NEMA 08–23 motors or hand cranks, allowing them to function as screw-driven linear actuators for compact positioning, adjustment, and automation applications.
- Ball Screw Diameters: 6, 8, and 10mm
- Ball Screw Lead Sizes: 1, 2, and 2.5mm
- Ball Screw Nut Fit: Standard and Transitional
- Ball Screw Nut Profiles: cylindrical, flanged and externally threaded cylindrical nuts
- Lead Screw Diameters: 6, 8, 10, 12, and 16 mm
- Lead Screw Lead Sizes: 1, 2, 2.5, 4, 5, 6, 8 , 10, 12, and 25mm
- Lead Screws have round and triangular nuts
- Lead Screws made of stainless steel with a PTFE coating to prevent flaking
More Features of Ball Screw & Lead Screw Assemblies
Frequently Asked Questions
What is a screw lead?
A screw lead is the distance a nut or screw moves axially in one full rotation. It is often confused with thread pitch, or the distance between adjacent threads measured along the screw. On a single-start screw, pitch equals lead; on multi-start screws, lead equals pitch multiplied by the number of thread starts.
What is the difference between screw pitch, screw start and screw lead?
Screw pitch is the axial distance between adjacent threads. A screw start is an independent thread path wrapped around the screw. Screw lead is the axial distance traveled in one full rotation. On a single-start screw, pitch and lead are the same. On multi-start screws, lead equals pitch multiplied by the number of starts.
What does axial movement mean?
Axial movement means motion along the lengthwise centerline of a shaft, screw, axle, or similar part. On a car or truck, axial movement would be motion along the axle from side to side, rather than spinning around it. In ball screw and lead screw systems, axial movement is the straight-line travel produced along the screw’s length.
What does NEMA mean?
NEMA refers to motor frame size standards from the National Electrical Manufacturers Association. In linear motion systems, NEMA sizes such as NEMA 08, 11, 17, or 23 describe the motor mounting face size, helping users match motors, mounts, and actuator assemblies.
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