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-250x250.png "SK20 - 20mm Shaft Support Mount")
-250x250.png "SC16UU - 16mm Shaft Bearing Mount")
-250x250.jpg "Flexible Spider Coupling D30 L40mm")
-250x250.jpg "SBR20UU - 20mm Linear Bearing Mount")
LM20UU - 20mm Linear Bearing Mount Support
-1500x1500.jpg "LM20UU - 20mm Linear Bearing Mount Support")
-1500x1500.jpg "LM20UU - 20mm Linear Bearing Mount Support")
-1500x1500.jpg "LM20UU - 20mm Linear Bearing Mount Support")
LM20UU — 20mm Closed Linear Ball Bearing
A standard closed linear ball bearing for guiding a 20mm smooth round shaft. Its cylindrical body is designed to fit a compatible bearing housing or accurately sized mounting bore.
LM20UU at a glance
Supplier catalogue reference — confirm the supplied item before final fitmentLM20UU product and designation source sheet
The first supplier sheet identifies the standard LMUU steel-cage family and the exact LM20UU designation, ball-circuit count, weight and bore.
| Model | Ball circuits | Weight | Shaft bore | Open version |
|---|---|---|---|---|
| LM20UU | 6 | 87g | 20mm | LM20-OP |
LM20UU dimensions and load source sheet
The second supplier sheet contains the profile drawing, exact LM20UU dimensional row and catalogue basic load ratings.
| Model | D | L | B | W | D1 | f | E | Angle | Dynamic C | Static C0 |
|---|---|---|---|---|---|---|---|---|---|---|
| LM20UU | 32mm | 42mm | 30.5mm | 1.6mm | 30.5mm | 1.5mm | 11mm | 60° | 882N ≈ 90kgf | 1370N ≈ 140kgf |
Where LM20UU is used
- Guides a 20mm smooth or hardened round shaft through linear travel.
- Fits inside a compatible 32mm bearing housing or accurately sized mounting bore.
- Closed format suits shafts that can be inserted through the bearing from an open end.
- Commonly used in CNC, automation, positioning and workshop linear-motion assemblies.
How to read the catalogue ratings
Dynamic: 882N (about 90kgf equivalent force). Catalogue comparison value while the bearing is moving.
Static: 1370N (about 140kgf equivalent force). Catalogue comparison value while the bearing is stationary.
These are bearing basic load ratings, not lifting ratings or guaranteed working payloads. Actual usable load depends on shaft support, alignment, housing fit, travel speed, impact, load sharing and the complete machine design.
Australia-wide supply from Melbourne
Stocked in Melbourne with delivery available across Victoria, New South Wales, Queensland, South Australia, Western Australia, Tasmania, the Australian Capital Territory and the Northern Territory.
Browse NCMASTER linear guide systems for matching shafts, supports and related linear-motion hardware.
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