Custom Acme Lead Screws

acme lead screw assemblyBarnes Industries manufactures new Acme and Trapezoidal type conventional lead screws. Send a drawing of your lead screw and nut assembly to our Sales Department for a quote. If you have a sample screw that is worn or damaged, send it in for a no-charge inspection and get a quote on a Barnes replacement screw. A new acme nut will be fitted to the new screw according to the class of thread accuracy required for each specific application. We can manufacture any type of conventional lead screw (Acme, Stub Acme, Centralizing Acme, or Trapezoidal), with capacities up to 8” diameter by 65 feet long. Barnes has high grade alloy steel in stock for up to 7 ¼” diameter and 40 feet long to help expedite delivery of very large industrial lead screws.

trapezoidal screw assemblyBarnes has the engineering know-how, skilled machinists and equipment to assist you in your conventional lead screw needs. We offer ground screws with a lead accuracy of .0005” per foot and a milled or whirled screw with .002” - .004” per foot lead accuracy. We can design and manufacture high accuracy or high load carrying Acme and Trapezoidal screws with English or metric leads.

special lead screw assemblyMost conventional lead screws manufactured by Barnes are made of tough wear resistant materials such as Stressproof or pre-hardened SAE 4140 or 4150 steel. Other designs may require a much higher hardness screw material for greater strength and long wear life. Still others may need a special coating on the threads such as thin dense chrome or phosphate. We can assist you with special lead screw materials also.

special thread form screwsThe Acme nut material used on Barnes conventional lead screws is usually CA95400 aluminum bronze. Heavy machine tool applications may require a much tougher grade of bronze such as CA86300 manganese bronze. Whatever your design criteria, Barnes can help you with your conventional lead screw requirement.

trapezoidal screwsOur custom made Acme and Trapezoidal screws are cost effective options for a variety of linear motion applications. We have extensive expertise in retrofitting Acme screws to ball screw assemblies if you are looking for an upgrade for your CNC machine tool.

Portfolio

Extra Long Ball Screw

Reconditioning of Large Buttress Screw 

High Load Capacity Ball Screw 

 Specifications

  Screw Materials

Alloy Steel
Hardened Steel
Stainless Steel

  Nut Materials

Bronze
Cast Iron
Alloy Steel
Hardened Steel
Stainless Steel

  Services

Thread Grinding
Cylindrical Grinding
Straightening
Regrinding
Lapping
Honing
Induction Hardening
Flame Hardening
Furnace Tempering
Turning
Milling
Reconditioning
Thread Whirling
Deflection Testing
Lead Inspection
Inspection and Testing

  Special Services

Proven Application Engineering
Design Assistance
Re-engineering
Emergency Reconditioning
Troubleshooting
Joining Longer Bars
Expedited Delivery
Acme Screw Conversion to Ball Screw

  Applications

Jacks
Presses
Vises
Machine Slides
Machine Tools
Valve Systems
Clamps
Lifting systems
Graphic Imaging Equipment
Power Transmission Equipment
High Load Capacity

  Screw Types

Lead Screw
Acme Screw
Stub Acme Screw
Trapezoidal Screw
Buttress Thread Screw
Metric & English Leads
Special Thread Forms

  Nut Styles

Single
Double

  Maximum Screw Diameter

8" (Larger sizes can be handled upon request)

  Maximum Screw Length

65' (Longer lengths can be handled upon request)

  Lead Accuracy (Ground Acme Screws)

+/- 0.0005" / ft, Cumulative

  Lead Accuracy

  (Milled or Whirled Acme Screws)

+/- 0.002"-.004” / ft, Cumulative

  Price
  • Based on customers' specific servicing needs, competitive costs for new lead screws are determined.
  • When the type of servicing and costs are determined, the customer is notified for a purchase order approval before any other operations are carried out.

  Delivery
  • Backed by the support of our experienced staff and state-of-the-art equipment, we provide fast delivery time on all our new or reconditioned lead screws.

  Warranty
  • New lead screws may be warranted for 12 months 
  • Dependant on application

  Acme Screw Features
  • In-expensive
  • Quiet operation
  • Ideal for slow speed applications
  • May remove or reduce back-driving
  • Bi-directional repeatability facilitated by the anti-backlash nut design
  • Minimum helical nonlinearity of the Acme screw, makes it perfect for constant velocity applications
  • Barnes Acme screws offer repeatable positioning accuracy
  • Barnes Acme screws facilitate smooth operation

  Grinding Equipment

Thread Grinders: MATRIX 70, Mitsui-Seiki, Excello, Jones & Lamson

  Standards Met

American Bearing Manufacturers Association's (ABMA's) Class ABEC-5 Standard
ASME/ANSI B1.5-1997 Acme Screw Threads-Class 2G through 5G
ISO Metric
DIN-103 Trapezoidal

  Industries Served

Aerospace
Aircraft
Agriculture
Automotive
Defense
Furniture
Machine Tool
Machine Tool Rebuild
Material Processing
Nuclear
Power Generation

  Partial Client List

Baker Oil
Boeing
Caterpillar
Chrysler
Dainichi Machinery
GE Aircraft Engine
General Dynamics
GM
Hewlett-Packard
Honda
Honeywell
John Deere
Mitsubishi
Parker Hannifin
Peiffer Machine
Solar Turbines
Spirit AeroSystems
The Daniluk Corp.
Toyota
Vought

Call 248.541.2333 Today visit our faq page for more information