Linear Flange Bearing LMF30LUU 30mm


The Linear Flange Bearing LMF30LUU is a low-cost, high-precision component for linear motion systems. Featuring an integrated flange and bearing design, it offers smooth motion with negligible friction. It is suitable for various applications, from precision instruments to industrial machinery.

Linear Flange Bearing LMF30LUU

The ZLV Linear Flange Bearing LMF30LUU offers a range of exceptional features and benefits that make it an indispensable component in a variety of applications. This detailed guide will provide comprehensive information about the product, including its specification, features, and application.


Here are the specifications for the ZLV Linear Flange Bearing LMF30LUU:

Parameter Value
Model LMF30LUU
Ball Circuit 6
Weight (g) 460
Size (D mm) 30
Public Errand (accuracy J) 0-0.007
Public Errand (accuracy P) 0-0.001
Material Plastics
Type Bushing
Protection Steel
Unit Price (USD) 1.2

Linear Flange Bearing LMF30LUU drawing


The ZLV Linear Flange Bearing LMF30LUU is a versatile component that finds its application in a myriad of home and office devices ranging from printers and fax machines to monitors. Manufactured under stringent ABEC-1 size and precision requirements, this bearing guarantees satisfaction for general-purpose applications.

Linear flange bearings, such as the ZLV LMF30LUU, represent a low-cost production linear motion system for use in unlimited travel in conjunction with cylindrical shafts. The minimal contact between the load-bearing ball and the shaft reduces the load and ensures a smooth, high-precision motion with negligible friction.

Features and Advantages

  • Integrated Flange and Bearing Design: This feature simplifies axial positioning and eliminates the need for a bearing seat, making it a cost-effective solution. It proves particularly advantageous when the shaft’s end lacks connectors and needs to be affixed to a flat surface like a board or wall.
  • High Rigidity and Precision: The use of small diameter steel balls provides low friction torque, high rigidity, and excellent rotary precision.
  • Lightweight: The use of a hollow shaft ensures lightweight and provides space for wiring.
  • Variety of Series: The LMF30LUU is available in different series like the ZZ steel plate dust cover, RS rubber seal ring, Teflon seal ring, flange, stainless steel, and ceramic ball series.
  • Broad Usage: It is apt for products requiring high-speed rotation, low friction torque, low vibration, and low noise.


  • Precision Instruments: The ZLV Linear Flange Bearing LMF30LUU is extensively used in precision devices like electronic equipment, tensile testers, and digital 3D coordinate measuring devices.
  • Industrial Machinery: The bearing is an integral part of sliding components in multi-axis machine tools, punch presses, tool grinders, automatic gas cutting machines, printers, card sorting machines, and food packaging machines.
  • General Equipment: The bearing finds its application in various industrial equipment, small rotary motors, office equipment, soft drives, pressure rotors, dental drills, hard disk motors, stepper motors, videotape drums, toy models, fans, pulleys, transmission devices, entertainment devices, robots, medical devices, office equipment, detection instruments, reducers, variable speed devices, motor optics, imaging equipment, card readers, electromechanics, precision machinery, electric tools, and toys.

Maintenance and Installation

Maximizing the lifespan of the ZLV Linear Flange Bearing LMF30LUU is easy if you follow these simple steps:

  1. To accommodate the eccentricity between the bearing retainer and bearing ring, the radial clearance is designed to be larger.
  2. By leveraging FEM analysis, the retainer strength is enhanced by optimizing the shape and plate thickness.
  3. To prevent surface damage due to oil reduction, an oil guiding groove is designed in the bearing ring.

For successful installation, it is essential to:

  1. Identify Components: Understand the different components and their respective positions and installation methods.
  2. Follow the Steps: To achieve optimal installation, strictly follow the installation procedure.
  3. Ensure Correct Component Positioning: It is crucial to position all parts accurately for optimal performance and to avoid potential complications.
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