1. The NSK Built-in Nut Cooling System is applicable for both offset-lead preload type and double-nut preload type ball screws.
Offset lead preload type: more compact using only a single ball nut.
Double nut preload type: larger preload is available with two ball nuts.
2. Coolant circulates in the nut in a balanced manner, effectively cooling the ball screw.
3. Designed so that the preload torque does not increase even when the nut is cooled.