Linear Motion Shafts

Linear Motion Shafts

L M Shaft Supplier

An "LM shaft" typically refers to a Linear Motion Shaft, often used in machinery and systems that require smooth and accurate linear motion.

These shafts play a crucial role in guiding and supporting moving components, such as linear bearings or sliders, in a straight line. Linear motion shafts are commonly used in various industries, including manufacturing, automation, robotics, and more.

Key Points About LM Shafts

  • Function: The primary function of an LM shaft is to provide a precisely machined and smooth surface along which linear bearings or sliders can move with minimal friction and high accuracy. This enables precise linear motion in various applications.
  • Construction: LM shafts are typically made from hardened and precision-ground steel to ensure dimensional accuracy, surface smoothness, and durability. The steel used is often chrome-plated or coated to enhance corrosion resistance.
  • Surface Quality: The surface of an LM shaft is usually ground and polished to achieve a smooth finish. This surface quality is essential for reducing friction and wear between the shaft and the moving components.
  • Types: LM shafts come in various configurations, such as different diameters, lengths, and end treatments. They can be plain shafts or may have features like threaded ends, keyways, or mounting flanges.
  • Linear Bearings: LM shafts work in conjunction with linear bearings or sliders. These components are attached to the moving parts that need linear motion and glide along the shaft's surface as they are driven by external forces or actuators.

Installation

Proper installation of LM shafts is essential for optimal performance. They should be aligned correctly and supported with suitable bearings to prevent bending or misalignment during operation.


Maintenance

Regular maintenance, such as cleaning and lubrication, helps extend the life of LM shafts and ensures smooth operation.


Precision

The manufacturing precision of LM shafts is critical to ensure consistent linear motion without binding, play, or inaccuracies. High-precision machining techniques are employed to achieve tight tolerances.

Material EN-8(D)/ EN-9 / EN-19 / EN-31/ SUJ2 / CK45 or As Per Customer Requirement
Std Size 6mm to 100mm, Above 100mm Can Be Order
Std Length Cut to Customer Length Up to 7000mm
Hard Chrome Plating Thickness 20 to 25 Micron
Surface Roughness 0.2 RA
Surface Hardness 60 HRC + 2
Chrome Surface Hardness 850 to 1000 HV
Straightness 0.1 Per Meter Max.
Chrome Layer Micro Hardness Min. 900HV0.1
Od Tolerance g6

Applications of L M Shaft

When selecting LM shafts for a particular application, it's important to consider factors like load capacity, speed, environmental conditions, and the required level of precision. Working with experienced manufacturers and suppliers is recommended to ensure that the chosen LM shafts meet the specific needs of your application.

LM shafts are used in a wide range of applications, including:

  • CNC machinery and machine tools
  • Automated manufacturing and assembly systems
  • Robotics and industrial automation
  • Printing and packaging machinery
  • Semiconductor manufacturing equipment
  • Medical devices and laboratory equipment