LMF30UU — 30 mm Flanged Linear Bearing (Neutral UU)
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  • LMF30UU — 30 mm Flanged Linear Bearing (Neutral UU)

LMF30UU — 30 mm Flanged Linear Bearing (Neutral UU)

4 pcs.
€24.57 (net)
Price for: 1pcs.

The LMF30UU — 30 mm flanged linear bearing (neutral UU version) is an excellent choice for precision linear systems in CNC, robotics, and automation. Its flange design simplifies mounting, and the sealed “UU” version offers protection without sacrificing performance.

📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h shipping - fast and efficient order processing

Contact us to check stock availability, request a quote, or place your order today.

Quantity

Applications & Advantages | Design, Specifications & Installation

The LMF30UU is a flanged linear bushing (linear bearing) designed for use with 30 mm shafts. The “UU” version indicates that it includes rubber seals at both ends, providing protection from dust and debris while maintaining low friction. As a flange linear motion component, it offers convenient mounting via the integral circular flange, simplifying installation in linear motion systems.

Applications & Advantages

Flanged linear bearings like LMF30UU are widely used in CNC machines, 3D printers, robotics, linear actuators, precision guides, and industrial automation. Its flange design enables stable mounting to structural plates, which helps in controlling alignment in machine assemblies.

Key benefits include:

  • Easy mounting via flange — no need for separate clamping blocks

  • Sealed “UU” version — helps block dust, chips, and contaminants

  • Low friction motion — recirculating ball bushing design ensures smooth translation

  • Compatibility with standard 30 mm shafts — widely available and standardized

  • Compact and reliable — high rigidity, long life with proper lubrication

Many catalogs of flanged linear bearings (LMF series) list variants with flange size, outer diameter, length, and load ratings. For example, one listing shows the LMF30UU in the Misumi catalogue with g6 tolerance and nominal dimensions. (Misumi data)

Design, Specifications & Installation

Parameter Value / Typical
Shaft compatibility 30 mm diameter
Outer diameter ~45 mm (typical for LMF-series flange)
Length / housing length ~64 mm (common for LMF30UU)
Flange outer dimension (varies) — typical for mounting use
Seal type UU — rubber seals both ends
Bearing type Linear ball bushing (flanged)
Load type Radial / lateral loads as linear guide
Material Hardened steel shell, ball recirculation
Use case Linear motion systems, CNC guide rails, automation

Installation Tips

  • Mount the LMF30UU flange flush to a flat plate with appropriate bolt pattern

  • Ensure shaft straightness and alignment to reduce side loads

  • Use proper lubrication (grease or oil) even with seals to maintain low friction

  • Avoid contamination during assembly — seals help but aren’t perfect

  • Monitor wear over time; replace when internal play becomes excessive

Note: The sealed “UU” version may add slight rolling resistance compared to open models, but in most practical CNC or automation setups this increase is negligible.

FAQ - Frequently Asked Questions

Q1: What does “UU” mean in LMF30UU?
“UU” indicates rubber seals on both ends of the bushing, protecting internal components against dust, chips, or moisture.

Q2: Is it suitable only for 30 mm shafts?
Yes — LMF30UU is designed for 30 mm shaft diameters, matching standard 30 mm linear rods.

Q3: Can it support axial loads?
Primarily it supports lateral/radial loads in linear motion; it is not designed for significant axial force.

Q4: Does it require lubrication?
Yes — though sealed, periodic lubrication helps maintain smooth operation and longevity.

Q5: Is fast shipping possible?
Yes — dispatch from our base in Lublin:
📍 Warehouse & Store: Lublin, ul. Smoluchowskiego 1, building 4
🚚 24h shipping - fast and efficient order processing

NEUTRAL
LMF 30 UU NEUTRAL
4 pcs.

Data sheet

Diameter in. (mm)
30
Diameter out. (mm)
45
Height (mm)
64
Mark
NEUTRAL