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2013 Miniature Lead Screw Design

Product News Tuesday, April 9, 2013: ABSSAC LIMITED

Miniature lead screw designs have often been challenging with regards to application performance verses cost. Overcoming the significant technical obstacles, Abssac has once again managed to supply what other lead screw manufacturers cannot.

With well over 30 years’ experience and using a 3mm and 2mm diameter stainless steel trapezoidal thread form with a 1mm lead allowed a precision drive to be supplied to one of Abssac’s medical industry customers. The bespoke nut designs on both applications were used to accurately translate rotary to linear motion. Machined from Turcite and incorporating unique attachment tangs, Turcite was suggested as the nut material for its self-lubricating characteristics. To reduce operational drag on the 2mm diameter screw, the lead screw was supplied coated with Teflon.

The final parts measured 30mm and 20mm in length and were supplied complete with a machined end journals for motor and bearing connection. Abssac was able to supply the parts on budget and have exceeded reliability and performance demands set by the customer.

Abssac has expanded its lead screw ranges to incorporate the machining facility to supply any type of thread form that you may require. Combine this with the ability to offer further journal end machining, gun drilling, screw hardening and special coating treatments give Abssac the competitive edge.