Schneeberger low friction MONORAIL BM series linear motion guide bearings are available from LG Motion Limited

Available as a stock delivered item from LG Motion Limited, the Basingstoke based motion specialist, the MONORAIL BM series is used extensively in a wide range of manufacturing and test applications in electronics, semiconductors, biomedical, scientific equipment and general purpose assembly automation.

A two point contact bearing preloading system, coupled with a very efficient ball recirculation system, ensures extremely low friction with minimal dynamic push force variation even under full load. A trapezoidal rail profile design also allows uniform rigidity and load to be equally distributed in all directions. Rails are available in six standard widths from 15 mm to 45 mm in lengths of up to 6 m with matching carriages supplied in a number of styles, some with standard or heavy duty versions.

Through the range, four accuracy and three preload classes are available to ensure maximum flexibility and cost optimisation for the customer’s application. The running accuracy of the best precision class for an individual carriage and rail is around 3 μm over 1000 mm. Under normal operating conditions, speeds to 5 m/sec and acceleration to 100 m/sec is attainable with higher values on request.

The standard carriage design includes double-lipped cross wiper and longitudinal wiper seals ensuring that lubrication is retained over the maximum useable period. To further improve sealing, a cover strip is available for the rails. Serviceability is made easy with lubrication points at the front, top and both sides of the carriage.

A wide range of rail and carriage options include non-standard hole spacing, special coatings to improve corrosion resistance, vacuum compatible preparation, wipers and bellows for added environmental protection and brakes and clamps to make installation easier for the customer.

The range can also be supplied with integrated racks for rack/pinion drives and with a length measurement system comprising a directly integrated magnetic scale to combine load carrying, precision alignment and position feedback functions in one convenient package.