Linear motion components can be combined to create complex or simple mechanisms for your application or machine. Combining linear motion components linear shafts and bearings/bushings create basic sliding guides. Sliding guides constrict the motion trajectories and moving members.
Each guide requires the following characteristics:
1. | Support the moving loads. | |
2. | Small and stable moving force. | |
3. | Provide assured long term stable accuracies under high speed/acceleration operations. |
The items 1 and 2 above are static performances (not associated with motion), and 3 is a dynamic performance (associated with motion). Sliding guide selection and structural designing will require basic knowledge shown below.
Here, representative linear sliding guides, rotary guides, and curve guides are explained.
(1) Linear Sliding Guides
Linear sliding guides are mechanisms allowing linear movements with accuracy and with little friction of linear motion units such as air cylinder driven units. Below is a chart illustrating the various linear sliding guides with their benefits.
Linear Sliding Guide Types | Characteristics | Factory Automation Components | ||||||||||||||
Linear Guides with Round Shafts ([Fig] a) |
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Linear Motion Guides ([Fig] b) |
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Gib’s Guides (Flat gibs, Triangle rails) ([Fig] c) |
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(2) Rotary Guides
Similar thoughts as above are also applicable to rotary shaft guides (ball bearings). Inertia applicable on linear motion does not apply to rotary motion, and advanced ball bearing technologies are used to obtain high speed guiding characteristics. There are a variety of rotary ball bearings that guide rotary shafts their applicable parts.
(3) Curve Guides
For curve (circular-arc, etc.) guides, linear motion guides formed into curvature driven by motors and ultrasonic motors are used. There are also circular linear guides, just like a linear guide but the rail is curved. This is able to withstand forces in multiple directions.
Sliding guides offer a variety of motion options. From non-rotational to load support, linear motion components are versatile for your needs. Up next, friction and wear in sliding mechanisms are examined.
I am looking for a system that will allow me to rotate a cylinder 90 degrees with the pivot point being at the end not the center. I came across your curve guide system and was wondering if you have more information I can review for this system.
Hi John,
You can find THK curved guide systems on our website here: /> For further assistance, you can email our engineering team at engineering@misumiusa.com.
Thank you!
-Carlicia
Hi there,
I hope you are safe and COVID free :).
I am very interested in your Curve Guides, are you open to custom made one for us.
Kindest Regards
Alaa
Hi Alaa,
You can find THK curved guides on our website at this link.
For a quote on something custom, reach out to our Engineering team at engineering@misumiusa.com.
Thank you!
-Carlicia