Linear Flange Bearing LMF13LUU 13mm


The Linear Flange Bearing LMF13LUU, a cost-effective component in a linear motion system, combines a flange with a bearing for simplified axial positioning. This design sees wide use in general machinery and precision devices, offering smooth motion, high rigidity, and excellent rotation precision.

Linear Flange Bearing LMF13LUU

The ZLV Linear Flange Bearing LMF13LUU represents an essential component in a wide range of applications, from printers and fax machines to monitors. It meets the standard ABEC-1 grade dimension and precision requirements, making it suitable for general use.

This bearing is part of a low-cost linear motion system designed for unlimited travel and cylindrical shaft use. The use of ball-bearing point contact with the shaft results in a small load, enabling high precision and smooth motion due to the minimal friction resistance of the rotating steel balls.


Parameter Value
Model LM(F K H)13UU
Ball Circuit 4
Weight (g/pcs) 78
Size (D mm) 13
Public errand accuracy (J) 0-0.006
Public errand accuracy (P) 0-0.009
Type Plastics, Bushing, Steel protection
Unit Price (USD) 0.7

Linear Flange Bearing LMF13LUU drawing

Key Features and Advantages

  • Integrated Design: The most significant feature of the Linear Flange Bearing is the integration of the flange with the bearing, simplifying axial positioning. There is no longer a need for a bearing housing, making the system more economical.
  • Versatility: The flange bearing shines when one end of the shaft requires anchoring to a flat surface, such as a board or wall.
  • Precision: To achieve low friction torque, high rigidity, and excellent rotation precision, small outer diameter steel balls are utilized.
  • Lightweight: The hollow shaft design ensures weight reduction and provides space for wiring.


Linear Flange Bearings are widely used in precision equipment such as electronic devices, tension testers, and digital three-dimensional coordinate measurement devices. They are also prevalent in industrial machinery’s sliding components, including multi-axis machine tools, punch presses, tool grinders, automatic gas cutting machines, printers, card sorters, and food packaging machines.

Moreover, flange bearings are suitable for various industrial equipment, small rotary motors, office equipment, soft disk drives, pressure rotors, dental drills, hard disk motors, stepper motors, video recorder drums, toy models, fans, pulleys, transmission equipment, entertainment devices, robots, medical equipment, office devices, testing instruments, reducers, speed changing devices, electric motor optics, imaging equipment, card readers, electromechanical devices, precision machinery, power tools, and toys.

Maintenance Tips for Extending Life Span

To extend the life span of flange bearings, the following measures are recommended:

  1. Improvement of the internal structure to allow the radial gap between the bearing retainer and bearing ring to be larger than the eccentricity.
  2. Use of Finite Element Method (FEM) analysis to optimize shape and plate thickness, thereby enhancing the retainer’s strength.
  3. Designing a guide groove in the bearing ring to prevent surface damage caused by a reduction in lubricant.

Installation Tips

Proper installation of Linear Flange Bearings is critical for optimizing their performance. Here are three key points to consider:

  1. Understanding the Components: The bearing comprises multiple components, each requiring specific installation steps and placement. It is crucial to familiarize oneself with each part to prevent confusion during installation.
  2. Knowing the Steps: It’s essential to understand the correct sequence of installation steps to achieve the optimal assembly. Following the prescribed steps reduces the risk of issues stemming from improper assembly.
  3. Correct Component Placement: Ensure that all parts of the flange bearing are installed in the correct position and state. This is vital for optimal installation and the subsequent functioning of the bearing.

In summary, the ZLV Linear Flange Bearing LMF13LUU, with its innovative design, precision engineering, and broad applicability, offers a cost-effective solution for a wide range of industrial and commercial applications.

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