Beware of purchasing inexpensive ballscrews as many sellers falsely claim to be offering precision-grade C7 screws. Genuine ZYLtech Anti-backlash ballscrews are true C7 grade with the following details:

• Precision grade C7 rolled ballscrews
• Travel distance error: +/- 50 microns per 300mm
  
• Maximum Radial Runout of the Circumference of the Thread Root in Relation to the Supporting Portion Axis of the Screw Shaft : +/- 14 microns
• Maximum Perpendicularity of the Supporting Portion End of the Screw Shaft to the Supporting Portion Axis: +/- 7 microns
• Maximum  Axial Clearance: 0.1mm (1605) or 0.05mm (1204)
• 4 Internal Return Ball Circuits (compared to lower quality ballscrews with only 3) - smoother and longer lasting

The length listed above is the overall length including machines ends.

Please refer to the last photo for specification of machined ends.

The end supports come with locking nut and retaining ring - available in the ZYLtech eBay store

 

• This listing is for Length: 400mm
• Ball nut length: 50mm
• Approximate total travel: 320mm

We are in Spring, TX (Greater Houston Area). We are still OPEN and SHIPPING. 90% of the orders will be shipped within the next business day via USPS, UPS or Fedex.