About Us
Esco Ballscrew Repair Service is an Emergency Ballscrew Repair Center that repairs all make and models of Ballscrew assemblies in the market today
Esco is a full ballscrew service repair center for nearly any type of screw and brand. We repair all brands of ball screws as well as acme and lead screws. We specialize not only in repair, but also the Esco manufacturing of high precision ball screws, customizing each screw assembly to meet the performance requirements of its customer's applications
All ball screws that are repaired will be checked for proper torque drag and operating smoothness.
We offering a 24 to 48 Hour Ballscrew repair and return service on any makes and models of ball screws,lead screws,Chucks, and Spindles
Esco will reduce your Downtime to a minimum with our RAPID RETURN SERVICE know matter what make or model ballscrew you have we able to recondition it back to Like New Condition...
Levels of Ball Screw Repairs
- Level 1 - It consists of disassembling, cleaning, inspecting, straightening the screw. chrome and grind worn or damaged journals.Then polishing and reloading to correct preload. Also installing new wipers, if needed
- Level 2 - It consists of disassembling, cleaning, inspecting, straightening, polishing and reloading it to a correct preload. Also installing new
- Level 3 - It consists of disassembling, cleaning, inspecting, straightening of screw. Chrome and grind worn or damaged journals. Then regrinding the screw thread back to O.E.M.specs and manufacture a new nut, also load correct preload and installing new wipers
- Level 4 – Manufacture of new ballscrew and nut for meeting or exceeding specifications:
- Reverse engineer, design new components
- Regrind standard, metric threads
- Manufacture and repair of wipers and seals
- Manufacture and repair of return tubes, deflectors.
- Adjusting the preload
- Loading new ball bearings
- Re-machine worn, damaged, or broken journal emergency repair service is also available for those times when it is critical that you get it back up and running.
Why a Rebuilding Ballscrew Is An Alternative To A New Ballscrew Unit?
The cost and even more Important 24 -48 hour Rapid Turn-Around Service we offer when Your Company is in a downtime satuation.
When you choosing a company to rebuilding your Ballscrew turnaround time is just as significant as the cost. Both should be kept in mind when deciding to rebuilding a Ballscrew.
It makes sense to repair your worn or damaged Ballscrews as they are expensive to replace and often have to be specially ordered.
A Ballscrew Rebuilt Can Significantly Reduce Your Downtime And Productions Lose.
Frequently asked questions
How can I be sure that the backlash shown on the control’s readout is in the ball screws?
With the machine assembled you can never be absolutely sure but there are ways to improve on sheer guesswork. The encoder (a rotary pulse generator) or a linear scale (a linear pulse generator) feeds signals to the control. A linear scale is mounted directly to the slide and way so bypasses errors in the ball screw and thrust bearings. An encoder relies on the accuracy of the ball screw and thrust bearings so control manufacturers invariably incorporate an electronic backlash elimination to alleviate any problems. Over compensated electronic backlash elimination can often cause jumping...
When I move the “y” axis slide on my machining center close to the limit the servo motor trips out. Is it likely to be the ball screw or the servo?
It is unlikely to be in the servo motor drive.
“y” axis slides on many machining centers are equipped with heavy sliding way covers that often get damaged by falling parts and tooling or just clogged with chips. When the slide moves toward it’s limit the load on the servo motor exerted by the damaged cover can trip the motor.
Similar symptoms can be caused by an incorrectly installed ball screw
I clean the ball screw on my machine regularly but the seals on the nut allow small particles to enter. The seals seem to be made of some sort of plastic. Can I replace them to keep the chips out?
The seals you mention are in fact wipers because it would be almost impossible to perfectly seal a ball nut. Manufacturers use varying materials to accomplish the task but the results are rarely 100% efficient. Plastic, neoprene, felt and brush wipers are used, some ball screw designs are supplied without wipers. All have their advantages and disadvantages depending on conditions of use. In your case, continue to clean and lubricate the ball screw but do not use an air gun to blow away chips. The use of compressed air to remove chips from a ball screw should be avoided.
There is backlash in one of my ball screws but the screw itself looks to be in good condition. I was considering to try to replace the balls myself to keep the cost down. Would you recommend it?
Working on a ball screw is not rocket science and anyone with reasonable mechanical abilities should be able to perform the task. It’s a little like working on your own car, there are some jobs you know you have the ability to perform and others you leave to the professional. The problem with do-it-yourself ball screw repair is if you make a mistake it can damage the unit beyond repair, and that can be expensive. In the final analysis it’s a judgment call you have to make for yourself.
A ball screw in one of my machines locked up and on inspection some of the balls have split in two pieces. Why did this happen?
When balls are split in two pieces like peas it is invariably caused by extreme pressure. Usually this pressure is the result of a mis-aligned ball nut. It is important when installing a precision ball screw to ensure that the ball nut flange face mates perfectly with the contact face of the nut housing or a lateral twisting can occur causing extreme pressure inside the ball nut. It is possible, especially on nut housings that are bolted and pinned in position, that alignment of the flange contact face was changed because of a collision
I have a laser cutter with a ball screw that is approximately 1.250 inch diameter and 12 foot long. It is time for me to have the unit reconditioned and I was thinking of taking it out of the machine and reinstalling it myself. Is there any special way to approach this and are there pitfalls to be avoided?
I have a laser cutter with a ball screw that is approximately 1.250 inch diameter and 12 foot long. It is time for me to have the unit reconditioned and I was thinking of taking it out of the machine and reinstalling it myself. Is there any special way to approach this and are there pitfalls to be avoided?
Long, small diameter ball screws are notoriously difficult to install correctly. Contrary to common belief, ball screws are not perfectly straight and long screws are the worst offenders. To work around this problem it is necessary to install the unit in a predetermined order. If the thrust and support brackets are left in position (this may not always be possible) when the ball screw is removed from the machine, it makes the task a little easier.
When installing the reconditioned ball screw, first assemble in the thrust and support brackets and make all final adjustments to the bearings. With...
What exactly is a preload when associated with a bearing or ball screw and how can I tell if the preload is correct?
This is a difficult question to answer because a preload becomes increasingly difficult to measure accurately after it passes zero preload when the variables become almost unmanageable. To give insight into these variables lets consider a simple precision roller bearing preloaded at the factory. It is then pressed into a tool bored housing and onto a ground shaft, each with an upper and lower tolerance. The shaft is then spun which causes friction between the preloaded surfaces, which induces heat and expansion, which again increases the preload even more. During a period of running, wear...
