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Linear Bearing Design Considerations

 

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General rules of thumb when designing with linear bearings include:

  •  Use a 4-5 times safety factor for static and moment loading (10 times if you actually will be doing work i.e. gluing, routing, etc. while the load is moving).

  •  If you use two blocks on one rail you can double the direct load carrying capability and the Mr moment capability of a single block. You can also use a factor of 5 times the Mp and My moment loading capability of a single block.

  •  The Basic Dynamic Load Rating heading is a figure that says "90% of all identical guideway/bearing combinations will have a life of 50 km (31 miles) of travel at this load."

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