Linear Bearing Features and Benefits

Simple controls

Reversal of direction is automatic, instantaneous and purely mechanical without clutches, cams, gears, complex control systems, or expensive motors. Besides assuring longer life of the overall system, freedom from a complex and costly control system results in reduced set-up costs and lower maintenance expenditures. With simpler controls there are fewer electrical and mechanical problems and production machinery downtime is reduced. Periodic lubrication of the drive shaft and reversal mechanism is the only maintenance required.

Smooth, unthreaded drive shaft

Because there are no threads on the drive shaft, the Uhing RG linear bearing requires no bellows assembly to protect the shaft from debris and dirt. The shaft remains clog-free. Additionally, the drive box will "slip," not jam, in the event of overload whereas a threaded shaft can continue to "churn," causing damage to expensive system components. No shaft cleaning means less downtime - better production rates.

Traversing housing accepts load directly

For light, uniform loads, there is no need to use linear bearings, slide mechanisms or other load carrying devices. Payloads may be attached directly to the "nut." For heavier or overhung loads, Amacoil can provide an optional linear slide load carrier.

Free movement on shaft

A free movement lever permits manual or pneumatically actuated positioning of the drive head while the system is stopped. Screw-based systems require the shaft to turn in order to move the nut.

Backlash free

Rolling ring engineering eliminates backlash. Even when reversing or changing pitch, there is no play between shaft and bearings. When the shaft turns, the rotational movement is immediately converted into linear output. To accomplish this with other devices requires the purchase of more expensive preloaded nuts.

17 sizes meet most requirements

A wide range of RG linear drive sizes accommodate varying payloads and axial thrust requirements. In most cases, an off-the-shelf unit will meet your needs. If not, an Amacoil applications engineer can assist you in selecting a custom RG drive.