Frequently Asked Questions

Our top frequently-asked questions and commonly-requested information has been compiled for quick and easy reference. However, if you need more information, please contact us.
Products
      Topics
  1. What products does Rockford Ball Screw offer?
  2. How do I decide which type of screw product to use?
  3. What are the advantages and disadvantages of each type?
  4. What are the advantages and disadvantages of freewheeling screws?
  5. What if the product I’m looking for is not in your catalog or on your web site?
  6. Does Rockford Ball Screw supply full machining services?
  7. Can parts be made from stainless steel?
  8. Can my screw products have plating or a coating added?
  9. What is a safety spring and when it is used?
  10. Does Rockford Ball Screw manufacture differential (twin-lead) screws?
  11. What is the purpose of an end bearing support?
Technical
      Topics
  1. How do I determine the correct size of ball screw to use?
  2. What information must I have if I need to ask Rockford Ball Screw for help in my selection process?
  3. How is the expected life of a screw in my application calculated?
  4. Why would I need to use a preloaded ball nut?
  5. What are the differences between precision class, accuracy, and repeatability?
  6. What are the differences between load, applied load, moment load, inertia and force?
  7. What is the difference between critical speed and critical ball speed?
  8. How fast can a ball screw move my load?
  9. If an end bearing support is listed as matching my ball screw, does that mean it is guaranteed to meet or exceed the performance of the ball screw?
  10. Why is column strength (buckling load) important?
Resources
       Topics
  1. How do I get printed copies of full catalogs, catalog pages, technical manuals, etc.?
  2. What options do I have for getting 2D and 3D models of my screw assembly?
  3. What if the screw assembly I need cannot be modeled with the web site tool?
  4. What engineering resources does Rockford Ball Screw possess to help me with my project?
  5. Is Rockford Ball Screw ISO certified? Where can I get a copy of the latest ISO document?
  6. Does Rockford Ball Screw offer Quality Assurance (QA) services?
  7. What is the process if I need to return a product for evaluation?
  8. Can Rockford Ball Screw duplicate an existing screw being used by my company?
  9. Who do I call to discuss my unique needs?
Customer Support/Sales
      Topics
  1. What makes doing business with Rockford Ball Screw unique?
  2. How can I find out who my Rockford Ball Screw contact is?
  3. I have not bought from Rockford Ball Screw before. Can I still buy parts from RBS?
  4. Where can I get information about prices?
  5. How do I pay for my Rockford Ball Screw purchases?
  6. What happens after I place a purchase order?
  7. Why does it take so long to machine a single screw?
  8. What if I need to have somebody from Rockford Ball Screw visit my location to discuss my needs?
  9. Are Rockford Ball Screw products eligible for export under NAFTA trade guidelines?
  10. Where is Rockford Ball Screw located?

 

 

 

 
 
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