custom lead screwS

WM Berg specializes in manufacturing both customized and standard lead screws to accommodate virtually all precision mechanical assembly requirements and operating conditions within the aerospace, healthcare and motion control industries. Our precision lead screws are custom manufactured to tight tolerances and put through rigorous quality inspections using full-contact CMM, video measuring and more.

  • Standard Diameters: 1/8" - 3/4"
  • Leads: 0.0500 - 1.875 (inches)
  • Leads:  1.0 - 75.0 (mm)
  • Footage up to 5 ft.
  • Modifications: Retainer ring grooves, retainer clips, special shaft lengths, journals, drilled holes, milled flats, tapered ends, anti-backlash nuts, left-hand threads
  • Custom materials
  • Custom nuts
  • Custom pitch diameters
  • Custom built assemblies

WM Berg Is a Pioneer in Lead Screw Development

Berg provides cost-effective, long-term solutions to linear actuation problems with quick prototype turnaround. Our close tolerance, free-running nuts are ideal for miniature applications requiring rotary-to-linear, or linear-to-rotary actuation.

Customized lead screw solutions are available in imperial and metric sizes, including left-handed threads.

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Custom lead screw assembly

Manufacturing Lead Screw Assemblies to Your Specifications

custom lead screw slide assembly

Berg technical experts are ready to work with your engineers, providing outstanding design capabilities and value. Advantages of partnering with Berg include:

  • One engineer, representing an entire team of experts, as your single point of contact for the entirety of your project
  • Support from prototype through production
  • Wealth of lead screw assembly expertise to help you with your specific needs
  • Ready to respond — they’re there when you call
  • On-site service & support available at your convenience

Why Choose WM Berg Custom Lead Screws?

Made-to-order lead screw assemblies are a Berg specialty that add value to your project with:

  • Customized nuts, assemblies and materials
  • Short lead time
  • High-lead thread — maximizes linear motion & minimizes shaft rotation
  • Low backlash (almost zero with anti-backlash nut)
  • High-axial stiffness
  • Polytetrafluoroethylene (PTFE) coating process — further reduces friction & unwanted noise
  • Nuts machined from Delrin® 100AF (13% PTFE) — provides excellent lubricity & wear resistance with or without additional lubrication
  • Made from corrosion-resistant & non-magnetic 303 stainless steel — makes our lead screws ideal for many demanding applications
custom lead screw with round nut

custom lead screw nuts

In addition to standard nuts, Berg offers custom-engineered lead screw nuts for unique or complex applications where precision is paramount. If your project’s design parameters require an innovative solution, our engineers can help you create a custom lead screw nut meeting your specifications. Custom nut options include:

  • Size
  • Material
  • Shape (triangular, rectangular, round)
  • Flanged or one piece
  • Lubrication or self-lubricating
  • Mounting hole pattern

Extreme temperatures, corrosion resistance, load requirements, torque and durability are some of the design variables to consider.

Custom Lead Screws Available With & Without Anti-Backlash Nut

custom lead screw without anti-backlash nut

Berg offers anti-backlash nuts for applications requiring precision positioning. Consisting of only three components, this technology uses the constant force of a compression spring to push two nut halves apart, which eliminates almost all backlash that exists between the internal thread of the nut and the external screw thread. 

To ensure accuracy and repeatability, the nut can be fine-tuned through the use of the many available constants to meet any pre-load design requirements. Anti-backlash nuts can be triangular or round. Spare nuts available on request.

five different custom lead screws with a custom triangular anti-backlash nut, round anti-backlash nut, standard rectangular nut, standard round nut, and custom round nut

Custom Lead Screw Specifications & Modification Options

The following specifications apply to lead screws with and without an anti-backlash nut:

General Specifications High Precision
Lead Error +/- .006 in/ft
Repeatability .00005 in
Straightness .003 in/ft
Backlash .003 in (zero with anti-backlash nut)
Temperature Range -50°F to 200°F
Breakaway Torque 0-3 oz-in (standard nut)

WM Berg offers a broad range of pitch diameters and leads for our standard lead screws. Customization options include:

  • Pitch diameter
  • Leads
  • Length
  • End configuration:
    • Journals
    • Keyways
    • Flats
    • Centers
    • Snap ring grooves
    • Cross holes
    • Counterbores
  • Nuts
  • Mounting/clearance holes
  • Thread starts
    • Single or multiple
  • Thread profiles 
    • Standard or custom
  • Thread direction
    • Right or left-handed
  • Assemblies
    • Precision ball bearing units or oilless bronze bearing units
    • Shaft height
    • Shaft on opposite end
  • Materials 
  • Surface coatings

Select a standard lead screw product to modify, or upload a completely custom lead screw design to request a quote.

custom lead screw with anti-backlash nut alongside precision custom lead screw

Common Applications Requiring Customized Lead Screws

Berg's high-quality, corrosion-resistant, non-magnetic lead screws are ideal for many applications requiring precision positioning. Our custom lead screws meet industry needs for:

Whether your application needs are standard, non-standard, or require completely custom parts, we can step in and provide excellent customer service and engineering support. 

custom lead screw slide assembly and polyurethane timing belt manufactured in USA

Precision Lead Screw Manufacturing in the USA

WM Berg has been the leader of premium precision lead screw engineering and production for over 50 years. Working with a custom component manufacturer has never been so easy. Our product experts connect with you every step of the way from design and manufacture to shipping and installation support. Our production process uses AQL sampling and lean manufacturing tools to deliver consistent quality, repeatability and economy.

Custom OEM lead screw assemblies allow long-term use of existing machinery and improved ability to evolve and optimize mechanical operations as business needs change, along with:

  • Guaranteed fit & function 
  • Faster production times
  • Quality assurance 
  • Reduced long-term replacement costs
  • 1-year warranty 

Partner with WM Berg to Define Your Custom Lead Screw Design Needs

From concept to prototype through production, our design, application, and mechanical engineers provide innovative solutions from our world-class manufacturing facility in Cudahy, WI. Send us your inquiry and we’ll be in touch within 24 hours.

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