Round Shaft and Bearings in Medical Applications

Round Shaft and Bearings in Medical Applications
Linear Shafting, Plain Bearings

Round shaft and bearings offer linear motion solutions for many medical applications, any place linear adjustment is needed, such as patient handling (surgical tables, chair lifts, etc.), scan heads, ceiling tracks for movable lights, and instrument adjustments, just to name a few.

The low coefficient of friction offered by linear ball bearings is ideal for ergonomic concerns, where easy movement under load is preferred.

Optimization of ball re-circulation and internal lubrication systems provide compact-precision, smooth, quiet and trouble free linear motion at a lower cost.

Special steel alloy rails are induction heat treated using the latest in CNC equipment and controlled to precise depth and hardness. Specially designed long length CNC grinders, precision grind all surfaces simultaneously ensuring accurate, smooth motion no matter what length. The internal design of the runner block/carriages provides vibration-free ball re-circulation and optional ball retaining caged carriages provide up to 84% less noise and up to 19% more load capacity for a nominal cost.  The internal lubrication system of the runner blocks allows for minimal maintenance and long life. The caged runner blocks add additional lubrication via special reservoirs built into the cage. Both versions feature a new end seal design and unique pop-in longitudinal seals that keep contaminants out of the bearings and lubrication inside. This leads to, depending on the application, no additional lubrication or maintenance for the life of the machine; resulting in clean performance and long lasting guidance for medical equipment.

Fully supported shafting configurations offer higher rigidity and precision of movement, especially in parallel shaft applications. Consider a pre-engineered solution for ease of installation, reference the Actuator Products, or pages 100-127 of the Round Shaft Technology catalog.

Aluminum components, such as Simplicity linear plain bearings and Feather Shaft/Feather Rail, are ideal for those machines where non-magnetic components are desired or required.

In applications where sterilization might be a consideration, our Washdown White Paper offers guidance on selection of components. The scale of requirements spans from no sterilization to severe wash down with caustic chemicals.


RST Simplicity Plain bearings

Application strengths: Simplicity bearings are resistant to many adverse environmental factors, outperforming recirculating ball bearings under these tough conditions