Cnc Machine Linear Slide Bearings

1. Basic overview of guide rail bearings

Guide rail bearings are transmission elements based on the rolling principle and are widely used in linear guide systems and rail transportation systems in mechanical equipment manufacturing. They can enable mechanical equipment to maintain high-precision position control and stable motion during operation. Guide rail bearings are composed of outer rings, inner rings, steel balls, cages and other components. The inner ring and steel balls are responsible for bearing the load, and the outer ring serves as the positioning component of the rolling elements.

2. Classification and size table of guide rail bearings

1. Linear bearings

Linear bearings are a type of guide bearing and are most commonly used in linear guide systems. It is mainly divided into ball linear bearings and rolling linear bearings. Common model sizes are shown in the table below:

| Model | Inner diameter | Outer diameter | Height |

| LM6UU | 6mm | 12mm | 19mm |

| LM8UU | 8mm | 15mm | 24mm |

| LM10UU | 10mm | 19mm | 29mm |

| LM12UU | 12mm | 21mm | 30mm |

| LM16UU | 16mm | 28mm | 37mm |

2. Sliding bearings

Sliding bearings are another type of guide bearings and are mainly used in sliding guide systems. It includes various different forms such as contour bearings, inclined plane bearings, and spherical bearings. The dimensions of each model are as shown in the following table:

| Model | Inner diameter | Outer diameter | Height |

| LMA8GA | 8mm | 16mm | 25mm |

| LMB12UU | 12mm | 22mm | 32mm |

| LMT8GA | 8mm | 15mm | 24mm |

| LMT12UU | 12mm | 21mm | 30mm |

| LMK20LUU | 20mm | 32mm | 42mm |

3. Selection and use of guide rail bearings

When selecting and using guide rail bearings, the specific model and size need to be considered based on factors such as the equipment's motion status and working environment. At the same time, during the installation and maintenance process, special attention should be paid to the lubrication and maintenance of the bearings, and to preventing collisions and damage with other components to ensure the normal working condition and service life of the equipment.