Emergency Ball Screw Services

Barnes Industries specializes in emergency ball screw services that will reduce a customer’s machine downtime to an absolute minimum.ball screw emergency services

Sometimes electronic malfunctions or operator error can wreck a ball screw rendering a critical machine tool inoperable. When emergencies like this happen, there are some critical steps that need to happen to protect the ball screw and possibly salvage what is left. When a screw has been wrecked and the ball nut has run into an end journal, a dog stop, or bearing housing;

emergency ball screw repair services

  • First, DO NOT operate the machine. Any attempt to rotate the ball screw could cause severe damage in the form of ball skidding, brinelling or return system failure, and the ball nut could seize on the screw.
  • Operation of the machine with the nut seized up on the ball screw causes the balls to skid, damaging the screw thread raceway possibly beyond repair and further damage will also occur in the ball return system.
  • If the screw is bent, it can be straightened.
  • If the journal is broken, it can be replaced.
  • If the v-threads are stripped, they can be welded and reground back to original condition.
  • If the bearing diameter is damaged or scored, it can be chromed and reground.
  • Do not attempt to disassemble the ball nut from the screw. Remove all end bearings, seals & drive coupling.

Emergency Ball Screw Evaluation

Send your wrecked ball screw to Barnes for an expedited evaluation. Our expert technicians will remove the ball nut & return system with the least amount of damage to the unit. You will be contacted as soon as possible with a variety of options on a detailed quote. 

We also have on hand a large supply of original salvaged, usable parts from major U.S. and foreign ball screw manufacturers. These parts are available for emergency repairs only and are never used in our full reconditioning process. We have the machining facilities to expedite the re-manufacture of any original ball screw components that may have been damaged beyond use. Qualified, experienced engineers and technicians provide the know how to round out the team required to give the fastest expedited ball screw service in the industry, including overnight and same-day turnaround in many instances.

emergency ball screw repair emergency ball screw service

Barnes Industries also offers an option on an emergency basis to make your original unit functional, if possible, and at the same time a drawing can be made and quoted for the manufacture of a new screw with an expedited delivery. We also have an inventory program where we keep ball screw assemblies in stock for immediate delivery for major machine tool manufacturers.

With our 40 plus years of experience in engineering and ball screw manufacturing, Barnes Industries is the only ball screw service that fully analyzes and applies the load-life calculations to all its services offered. When you have an emergency, send your screw to Barnes for a professional evaluation and the shortest possible turn-around.


Extra Long Ball Screw

Reconditioning of Large Buttress Screw 

High Load Capacity Ball Screw 



Alloy Steel
Stainless Steel


Thread Grinding
Cylindrical Grinding
Induction Hardening
Flame Hardening
Furnace Tempering
Thread Whirling
Deflection Testing
Lead Inspection
Inspection and Testing

  Special Services

Design Assistance
Emergency Reconditioning
Reload and Minor Reconditioning
Repair Broken Journals
Detailed inspection of failed ball screw assemblies
Diagnose machine tool discrepancies leading to failure
Pinpoint ball screw application errors
Identify alignment related premature ball screw failures

  Maximum Screw Diameter

6" (Larger sizes can be handled upon request)

  Maximum Screw Length

52' (Larger sizes can be handled upon request)

  Screw Lead Accuracy (Tolerance)

Reloaded Ball Screws:
Customers will be notified of lead accuracy.

Ball screws Reconditioned by Lapping:
Customers will be notified of lead accuracy.

Ball screws Reconditioned by Regrinding:
±0.0005" per Foot, Cumulative

  Precision Ball Diameter Tolerance

+/-0.000025" (Grade 25)


  • Depending on the type of processing, cost estimates for repaired or reloaded ball screws are calculated, and the customer is notified for a purchase order approval before any other operations are carried out.
  • Our sales department will give firm not-to-exceed costs for our various types of services and the delivery times at the time of inquiry.


  • Backed by the support of our experienced staff and state-of-the-art equipment, we provide fast delivery time on all our repaired or reloaded ball screws.
  • Overnight or same-day turnaround time in many instances


  • Ball screws processed for minor repair and reloaded ball screws will carry a warranty up to 6 months. (If Barnes determines a screw non-repairable and customer wants it to be repaired, no warranty applies)

  Grinding Equipment

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

  Standards Met

American Bearing Manufacturers Association's (ABMA's) Class ABEC-5 Standard
ISO 3408 and DIN 69051

  Industries Served

Machine Tool
Machine Tool Rebuild
Material Processing
Power Generation

  Partial Client List

Baker Oil
Dainichi Machinery
GE Aircraft Engine
General Dynamics
John Deere
Parker Hannifin
Peiffer Machine
Solar Turbines
Spirit AeroSystems
The Daniluk Corp.

Call 248.541.2333 Today visit our faq page for more information