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LM8UU linear bearing and 8 mm rod

What are the LM8UU bearing dimensions and the housing bore? · Hardware · basis: industry standard (ISO 10285 style)

length
24 mm
width
15 mm
height
15 mm

Notes

  • Bore 8 mm, OD 15 mm, length 24 mm; two retaining-ring grooves. LM8LUU is 45 mm long. LM10UU is 10 × 19 × 29, LM12UU 12 × 21 × 30.
  • Printed housing: Ø15.2–15.3 mm; clamp-style housings hold better than a straight press.

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

McMaster-CarrLinear ball bearings (free STEP/IGES/STL per part, for your own design use; no redistribution)STEP, IGES, STL, PDFMcMaster-Carr site terms: personal design use, no redistribution verify
WikipediaLinear-motion bearingwebCC BY-SA 4.0 (text)

Free files

★ Free files 2 parts, generated by Xem Studio from the standard. CC BY 4.0. Threads are plain cylinders at major diameter. index.json

lm8uuLM8UU envelope with ring groovesSTEP · STL
rod-8x3008 mm rod, 300 mmSTEP · STL

Plain text: sheet.txt · JSON: /api/geometry?object=lm8uu-linear-bearing

LM8UU linear bearing and 8 mm rod, isometric render of a generated part
Render of lm8uu from the free STEP; not to scale.

Fits with

hole pattern
NEMA 17 stepper motor42.3×42.3 mm★ free
2020 aluminum extrusion20×20 mm★ free
Socket head cap screws, M2–M8 (ISO 4762 / DIN 912), isometric render of a generated part
Socket head cap screws, M2–M8 (ISO 4762 / DIN 912)7 sizes★ 47 files

Questions

What are LM8UU bearing dimensions?

8 mm bore, 15 mm OD, 24 mm long, two retaining-ring grooves. LM8LUU is the 45 mm long version.

What hole size for an LM8UU in a 3D printed housing?

15.2–15.3 mm; a clamp-style housing with a slot and screw holds better than a straight press fit.