BALL SCREW REPAIR
Serving industry for over 18 years


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Question:
We are a very small company, so to keep the cost down for repair work we like to do as much as we can for ourselves. We have noticed increasing backlash in one of our ball screws and would like to repair it. Could you give us some pointers how to approach the task. Is it necessary to replace the balls if they look OK or can we simply adjust it somehow?
Answer:


Question:
We had to replace a ballscrew last month but we still have some backlash. One of our customers, who repairs transmissions for heavy trucks and construction equipment looked at the old thrust bearings and said they were still OK. These bearings are expensive so we don't want to replace them unless it is absolutely necessary. Our customer said he uses bearings like these that are bigger and cost a fraction of the price. Do we have to use the exact same bearings that the manufacturer recommends?
Answer:


Question:
All the ballscrews I have seen seem to be expensive high precision units costing thousands of dollars. I have a machine that would benefit from fitting ball screws but it is not worth the high cost. Where can I obtain used ballscrews at a reasonable price or is there an alternative?
Answer:


Question:
I was told that the felt seals fitted to the ball nut on my ballscrew will cause problems and need to be replaced with Teflon seals. Is this correct, if so why was felt used in the first place?
Answer:


Question:
I noticed that the ball screws on my machine get quite hot after being run for a few hours but repeatability doesn't appear to be affected. If the ball screws expand and grow in length when hot, how come I can still hold size?
Answer:


Question:
I need to have a ballscew manufactured that is resistant to corrosion but will have super fine accuracy. Can one be made of stainless steel, including the balls that will compare in performance to a chrome steel ball screw?
Answer:

Express Ball Screw Repair

369 Virgil Rymer Road NE.
Cleveland TN 37323

Phone: (423) 559-2153
Fax: (423) 559-1044
E-mail: 
expressballscrew@aol.com


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