Review on SBR20 Aluminum Linear Bearing with UU Design by Peter Sullivan
Smaller Than Expected - Linear Motion Products
They are poorly made. The lack of precision gives that "two thumbs down". They slide worse on the SBR20 rail than on a standard linear bearing. Also, there are no stops on the block to prevent the inner cylinder from rotating. This could potentially block the linear movement and damage the rail if/when it rotates more than 10°.
- Smooth Motion, Low Friction, High Performance and Long Life
- There are more interesting options.
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