Double preloaded nut type DIN 69051/5 for ground screws

The nut is a key engineering element for the mechanism of recirculating ball screws: the nut accommodates the balls that create the precise, even and low-friction movement typical of B.B. brand screws.

Among the most popular components is the double preloaded nut for ground screws, made according to DIN 69051/5 standards, which guarantees the customer not only interchangeability but also immediate availability. 

Just like our other conventional nuts, the double preloaded nut type DIN 69051/5 for ground screws features the innovative internal recirculation system where the whole rolling track of the nut is divided into several circuits in which the balls run in a closed cycle; at the end of each revolution the balls are brought back to their original position by a deviating return piece. In order to obtain larger load capacities the number of circuits must be increased in the nut rolling track according to the information in the technical characteristics table.

For long-pitch nuts there is a system where all the balls run along the entire length of the rolling track, exiting one end and re-entering the other via special deflectors.

Download the technical specifications on the double preloaded nuts type DIN 69051/5 for ground screws