What is the difference between a single nut, double nut, and integral nut on a ball screw?
There are three types of nut combinations for Ball Screws.
The single nut is the simplest combination consisting of a single nut. By adjusting the size of the balls to be incorporated, it is possible to provide an axial clearance or to eliminate the axial clearance and apply a preload.
As the name suggests, double nuts are made by combining two nuts. The method of assembly is to rotate the two nuts so that they are tightened together, changing their relative positions to apply preload, and then insert a pin or key between the nuts to prevent rotation, eliminating axial clearance and increasing rigidity through the preload.
The integral nut can obtain the same preload as a double nut with a single nut. The preload is applied at the center of the nut (between the circulating parts) by shifting the lead by an amount equivalent to the preload.
It would be difficult to explain each one, but I'll make a list to make it easier to understand.
Technical information list about Ball Screws
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