Ball Screw Repair

Fast ball screw repair service is available across North America from our repair center in Michigan. We offer fast, flexible lead times for ball screw repairs:

  • 24-hour rush repair service (emergency reload)
  • 5-day typical turnaround for standard repairs
  • Expediting service to minimize down time
  • Fast and economical replacement options: we can regrind your screw and replace the ball nut, or, replace the entire assembly if needed – in weeks, not months!

In addition to precision ball screw repair, we repair acme screws and lead screws. This repair service is for nearly all brands of screws, and we have over 30 years of experience with ball screws from all machine makes and models.

Request Repair Repair Service Brochure

Key Things to Know about our Ball Screw Repair Service

  • Need to get back up and running in a hurry? 
    Please call ahead at +1 800 298-2066 to make arrangements for emergency or expedited repair service.
  • Damaged Beyond Repair? 
    If your ball screw is damaged beyond repair, we can manufacture a new one from prints or by reverse engineering.
  • No prints? 
    Our team of engineers can reverse-engineer your ball screw assembly to meet your exact specifications.
  • Acme Screw or Lead Screws?
    We can repair them or replace them with a ball screw design.
  • Ball screws from any machine tool?
    No matter what make or model.

Evaluate your repair cost savings with our Ball Screw Scenario Savings Calculator.

Types of Repair

Warranty Reload (Restored to “Like New” Condition)

  • The ball screw assembly cleaned and evaluated.
  • Visual and physical inspections of the unit are performed to determine if the unit is re-loadable.
  • The unit is reloaded with new balls, tested, and inspected to ensure the unit is repaired to “like-new” operating characteristics.
  • Particular attention is paid to Smoothness of operation, minimization of backlash, and minimization of dead-band condition.
  • Bearing journals, locknut threads, or keyways will be repaired upon customer request.
  • One year warranty
  • Previously known as “Level 1 Reload”

Temporary Reload (No Warranty)

  • The ball screw assembly cleaned and evaluated.
  • Visual and physical inspections of the unit are performed to determine if the unit is re-loadable.
  • The unit is reloaded with new balls, tested, and inspected.
  • “Like-new” characteristics cannot be entirely achieved.
  • No warranty
  • Previously known as “Level 2 Reload”

Regrind Screw and New Ball Nut

  • If after a thorough evaluation, it is found that the ball screw cannot be reloaded due to pitting, brinneling, and/or damage to the interior or exterior of the unit; then the unit could be refurbished by manufacturing a new ball nut and regrinding the existing screw to remove pitting and taper
  • One-year warranty.[insert link]

Typical Evaluation and Repair Process for Standard Reload

  • Your ball screw assembly will go through a multi-step cleaning and evaluation process (see below)
  • We will produce a report on the condition of the assembly
  • We will email you a quote with the option to repair, rebuild, or replace your ball screw assembly
  1. Run the unit to evaluate the incoming condition
  2. Disassemble and clean the ball screw
  3. Check: screw form on comparator; screw for straightness; form of ball nut on surface profiler
  4. Inspect additional components
  5. Evaluation running condition, and adjust as required
  6. Reassemble unit: return mechanism and wipers replaced
  7. Additional evaluation and inspection for torque error, lead error, etc.

Before and after image showing the repair of a ball screw assembly. The top part of the image depicts a worn-out, rusted ball screw, while the bottom part displays a cleaned and refurbished ball screw assembly, illustrating the effectiveness of the repair process offered by Dynatect.

Saving Money, Correcting Problems

At Dynatect LSI, we have been a ball screws manufacturer for over 30 years, and we’ve also been repairing and rebuilding precision ball screws ever since. We’ve seen just about every type of screw, in every condition. We can repair or rebuild your ball screw to save you money and extend the life of your screw before a costly replacement becomes necessary. In addition to quick turnaround times, we offer engineering assistance to correct any problems you might be experiencing with your ball screw application.

Did you know that 30-60% of used precision ball screws can be refurbished to new condition with a warranty?  The repair cost is typically 50-60% the cost of new precision ball screws. We quote all ball screw repairs with a replacement option so you can not only compare your cost savings, but have the option of keeping an extra ball screw in stock to avoid replacement lead times. (Dynatect’s new ball screw lead times are still the best in the industry.)

How to initiate a repair

Step 1. Call ahead for an RMA number

Call us for free at +1 800 298-2066, and don’t forget to let us know if this a rush repair.

Step 2. Please include a packing slip with your personal information and information about the machine

Personal information: your RA #, name, name of your company, address, phone number

Any information that would be helpful in identifying your machine: machine name, part number, model or model number, axis

Step 3. Ship all items “pre-paid”

Shipping Address:
Dynatect Lead Screws International, Inc
2101 Precision Drive
Traverse City, MI 49686

The evaluation is free, however all freight costs are the responsibility of the customer. No freight collect items will be accepted without prior approval

Step 4. Review our Evaluation Policy

See below.

Evaluation Policy

Dynatect is proud to put its years of ball screw experience to work for you. At no charge we will gladly:

  • Receive your ball screw assembly (screw and nut only)
  • Put it through a multi-step cleaning and evaluation process
  • Provide you with a report on the condition of the assembly
  • Provide you with a quote to repair the current assembly, and/or provide a quote for a fully warrantied new assembly

Please contact sales prior to shipping in any units that will require disassembly of other components that are unrelated to the ball screw/nut assembly. You may accrue a disassembly fee if the repair department has to disassemble components (i.e. bearings, housings, lock nuts, gears, keys, etc…) that need to be removed prior to the cleaning and evaluation phase. Dynatect reserves the right to charge a disassembly fee before beginning.  Once the disassembly fee has been received, we will proceed with your free evaluation of the ball screw assembly.  The additional components will be shipped back to you disassembled from the ball screw assembly.

Additionally, Dynatect reserves the right to refuse the free evaluation to customers who have previously not responded to quotes for repair or replacement. If we do not receive a response within 30 days of our evaluation & quote, the ball screw assembly will be shipped back unassembled, and freight cost will be the responsibility of the customer.

If a replacement ball screw assembly is ordered, the original ball screw assembly will be shipped back when the replacement unit is shipped from our facility.