THK JPF： this Ball Screw achieves zero-backlash through a constant preloading method by shifting the phase with the central part of a simple nut as the spring structure.
Structure and specialty of type JPF
1. The JPF model uses the central part of a single nut as a spring structure to move the phase, and the invalid stroke is zero by means of constant pressure preloading.
2. constant pressure preload makes the ball screw absorb the pitch error and eccentricity and achieve smooth movement.
Advantages of type JPF
1. achieve C7 level lead accuracy.
2. the roughness of the rolling surface of the ball screw shaft is below 0.20a.