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Curved Rail System with 160 Degree Turn on Nine Inch Radius

We design, develop, and manufacture custom curved linear rail guide systems for medical, industrial, and mobile vehicle platforms. Below is an example of a system that allows a payload to be moved around a 160 degree turn. The track radius 228.6 mm (9 inches).

160 Degree Turn Track

Rail Mounted Horizontal Orientation

25lb payload guided moving forward and backward about a 160 degree turn.

Track Radius is 228.6mm (9 inches)
Payload Attached to Top of Carriage or Block

This design started with a requirement to move a scanner head for an inspection system in a circular motion about a product.
Image Gallery

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All our curved linear rail systems are designed to your specific motion profile requirement. We will need several bits of data such as the motion profile, moving payload weight, and speed prior to estimating the cost of the system.

Using RCV43 Series Guiding Cam Roller Bearings

In this application the customer needed to precisely move a scanning head around the perimeter of an object. They knew the distance the head needed to be from the object for the best resolution, they knew the scan angle, and approximate weight of the scan head. With that information we were able to quickly create a prototype solution for test and evaluation.

Below or to the right is a stop motion animation of the block moving along
the curved rail. motion animation

Once this is mounted to machine structure and the covers are installed you will not see it. This is the case with many guiding systems. They remain hidden deep within the machine or device.

Curved Rail Guided Systems

Since most of these are made to order we can usually adjust or alter the materials.

Aluminium, Carbon Steel, and Stainless Steel are most popular.

  • 6061 Al for lightweight
  • ASTM 1020 for heavy duty
  • 17-4 Stainless for harsh or humid applications

These can also be finished with Special Plating or Coatings to enhance wear or durability.

Typical Product Use

A few areas where you can find these products in use are listed below:

  • Medical Devices
  • Life Science Lab Equipment
  • Conveyor Systems
  • Laser Systems

Custom Design Capabilities

Prototypes: We reserve a portion of our shop for custom designing and machining to quickly create working models for you to evaluate.

Options: Stop pin, lock mechanism designs, or other recommendations are available upon request.


Multiple blocks can be mounted on the rail. Preload for each block can be adjusted on an individual basis.

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The Precision Alliance | More than components... Solutions!The Precision Alliance | More than components... Solutions!