Lead Accuracy

Nomenclature of
PMI Ballscrew

PMI Precision
 Ground Ballscrew

Internal Ball Series
End Deflector Series
External Ball Series
High Lead Series
Heavy Load Series
Heavy Load Series of    End Deflector
End Cap Series
Miniature Series
Standard Type Series
PMI Rolled
PMI Ballscrews of Blank Shaft End
PMI Ballscrew
With Hollow
Cooling System
FA Series


It is important for a high-lead ballscrew to be with characteristics of high rigidity, low noise and
thermal control.
PMI takes its patented design and treatments to achieve the following characteristics:

High DN Value
  Max. DN Value: 220,000  
  Low Noise  
  The average and accurate ball circle diameter (BCD)
through whole threads make the ballscrews to obtain
the stable and consistent drag torque as well as to
reduce the noise.
The audio frequency is low and deep due to the
designed of plastic circulation system.
  Space Saving  
  The ballnut diameter reduces 20%~25% substantially
and the length of nut is shorter.
The total space shall be reduced to approximately 50% consequently.
  The specially designed pathway of the Recirculation System makes a contact with lead angle and also with BCD in the same tangency, improving its smoothness eff ectively.
  CNC Machinery
Precision Machinery
High Speed Machinery
Semi-Conductor Equipment
Medical equipment
  Dimension (clickable)  

FSDCFDDC ( Flange 3D files available to download )