1. Standard Cylindrical Linear Bearings (LM Series)
The LM series features a clean, cylindrical exterior designed for direct integration into precision-machined housings.
Ultimate Radial Compactness: The absence of a flange provides the smallest possible diameter, making it ideal for embedding bearings within custom-castings or high-density machine blocks.
Rotational Optimization: Because the bearing is a smooth cylinder, engineers can rotate it within the housing to orient the internal ball circuits away from the primary load vector, significantly extending bearing service life.
Cost-Efficiency: Simplified manufacturing makes the LM series the most economical option for high-volume production.
Custom Housing Integration: Ideal for complex multi-bearing designs, such as a single aluminum block housing multiple bearings for high-stability carriages.
2. Flanged Linear Bearings (LMF, LMK, LMH Series)
The flanged series integrates a mounting plate onto the outer cylinder, effectively turning the bearing into its own mounting bracket.
Simplified Assembly: Eliminates the need for H7-tolerance precision boring or snap-ring grooves. Simply insert the bearing into a clearance hole and bolt it to the surface, drastically reducing CNC machining time and costs.
Superior Axial Retention: Unlike standard bearings secured by friction or snap rings, flanged bearings are bolted directly to the structure. This provides exceptional resistance against vibration and axial push/pull forces, making them the preferred choice for vertical (Z-axis) applications.
Rapid Maintenance: Assembly and replacement require only standard tools. If a bearing wears out, it can be unbolted and swapped in seconds without the need for an arbor press.
Geometry Variations:
- LMF (Round): Offers a uniform, balanced footprint.
- LMK (Square): Features flat edges that allow for a lower center height, enabling shafts to be mounted closer to the base plate.
- LMH (Oval): Provides an ultra-narrow profile, ideal for mounting parallel shafts in close proximity.