Plastic anti-backlash nut assemblies developed by the California based
company, BSA, are now available in the UK from Abssac. The XC series
features a novel design called ActiveCAM, which automatically compensates
for wear and delivers exceptional repeatability throughout the life of
the nut. The design replaces older spring-loaded nut technologies to
provide zero backlash and consistent minimal drag torque up to the rated
load capacity of the nut. ActiveCAM plastic nut assemblies can be dropped
into any application requiring precise motion of loads up to 114kg, yet
it costs less than half the price of a traditional ballscrew, according
to Abssac. Furthermore, the assemblies require no lubrication, thanks to
the nature of the compounds that make up the plastic components.