Abssac ball screws help restore machine tools

Abssac has relied on its ball screw knowledge for two pre-WWII machine tools that are being restored in a local woollen mills maintenance workshop.

After a careful measurement of the last remaining ball screw was undertaken, it was found that the ball screw was imperially sized, with a 1in diameter by 0.25in lead, Gothic arch ball screw format.

Abssac has utilised a cold rolled formed ball screw format to aid the restoration of machine tools

Abssac was able to utilise a cold rolled formed ball screw format.
The ball screws were cut to a length and then machined at the ends to allow them to fit a thrust bearing to the whole assembly.
The traditional square section nuts that were used by the old machines were replaced by adapted standard product range nuts and were chosen specifically for authenticity due to their single ball return design.
The whole assembly was then low temperature black chrome plated, which gave a corrosion-resistant, smooth and scratch-resistant surface finish, which aims to provide the machine with at least another 50 years of service.
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