•  Insecure mounting
•  Need a minimum footprint
•  Assembly difficulties
•  Excessive Wear
•  Misalignment
•  You want minimal maintenance

We have the answer!

A manufacturer of automated test equipment for low-cost testing of complex printed circuit board assemblies needed the machine to be accurate, flexible, rugged construction and have a long life.

The key feature of the analysing machine is its ability to apply multiple test probe points across a pcb to locate any manufacturing defects such as incorrect, missing, or mis-oriented components and electrical current opens or shorts. The machine’s multiple spring loaded probes are mounted in a custom platen which is accurately positioned by a scissors mechanism to ensure that its hundreds of test points are heavily loaded on the appropriate areas of the pcb.

The challenge for the company was to find bearings that would operate in an oscillatory motion and carry a peak load of 1250 kilo with a minimum bearing life specification of half a million cycles under load. Other bearing selection criteria included corrosion resistance, maintenance-free life, cost, and ease of installation. After an extensive search two of Spyraflo's unique bearing were selected.

The complete scissors mechanism is held in place by four 19mm diameter Teflon-Bronze, Aluminium Pillow-Block Bearings PB2-750P. In addition four Self-Clinching 9.5mm diameter Teflon-Bronze Bearings FSP375N are securely mounted into the arms of the assembly carrying the extreme load associated with the elbows of the scissors mechanism.

The self-clinching process eliminates risk to the bearing's ID during installation and ensures a secure, permanent fit that won't come lose during operation.

These excellent machines equipped with Spyraflo bearings are now being shipped to manufacturing sites in over 40 countries around the world.

Micromech is the UK and Eire distributor for these clever bearings and if you would like to find out more perhaps request a sample then contact Alan Spinks on 01376 333333 or alan@micromech.co.uk

‘A revolution in Bearings’