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Your cart is empty. Brand: Coavoo
Model: SBR20UU
For linear motion shaft guide rails diameter: 20mm 0.79inch
The built-in material: Engineering plastic
The external material: Aluminum Alloy
This package includes:
2Pcs SBR20UU Ball Bearing Slider Blocks
Feature & Application:
- Working with SBR series linear rails, the sliding blocks cooperatively with rails, smooth sliding provided by inside linear ball bearing.
- The linear rails kit apply for various kinds of automated machines and equipment, can help build economical cnc linear guiding system.
- The lining material of engineering plastics can make the slider waterproof, rust proof, dust-proof, free from maintenance, quieter operation and longer service life
clearly deranged
Reviewed in the United States on April 17, 2023
I purchased these Bearing Blocks to replace the ball bearing style blocks that came with the Linear Bearing Rails (the ball bearings were/are quite loud). When I installed these as replacement I did so only on the rails running on the Y Axis, no others. Half way through the first project I realized that the Z axis depth of my cutter was slightly (very slightly) deeper than the first several passes were. It seems that these blocks, with the linear "plastic/composite" material very likely were causing the discrepancy. Am I 100% sure? Not 100%, but it's convinced me to go back to the ball bearing style blocks.NOPE, I will not purchase these again.Update 4/26/23 - While I still stand by my assessment of the Bearing Block, I changed my rating to 3 stars (from 2) because the seller REALLY stepped up. Without asking for anything in return, they 100% took care of my issue. Can't thank them enough. Still a "NO" on the item, but 5 star on the seller.
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