LMK8LUU 8mm Long Square Flange Linear Ball Bearing
Part number: LMK8LUU3D Printer & CNC Parts
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Prices updated: 13 Oct 2026
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About this product
An 8 mm linear ball bearing with a long body and a square flange, used to run smoothly on 8 mm round guide shafts in 3D printer and CNC axes. The flange allows it to be bolted directly to a carriage or plate. The LUU designation indicates the long body version.
Specifications
- Bore diameter
- 8 mm
- Bearing type
- Linear ball bearing
- Body
- Long
- Flange
- Square
- Shaft compatibility
- 8 mm round shaft
Frequently asked questions
What shaft size does it need?
It runs on an 8 mm round guide shaft, matching its 8 mm bore.
How is the long body different from a standard LM8UU?
The LUU designation indicates the long body, which gives more bearing length on the shaft than a standard LM8UU. The square flange also lets it bolt directly to a plate.
