1. LMF-UU Series: The Round Flange (Standard)
The LMF represents the industry-standard flanged bearing, characterized by a circular mounting plate with four equidistantly spaced bolt holes.
Engineering Advantage: The circular bolt pattern provides the most uniform distribution of clamping force around the shaft axis, ensuring maximum stability.
Availability: As the most common configuration, it offers high stock availability and cost-efficiency.
Application: The default choice for general-purpose machinery and structural frames where mounting surface area is unrestricted.
2. LMK-UU Series: The Square Flange (Compact)
The LMK series modifies the standard design by trimming the flange sides to form a square geometry, positioning the four bolt holes in the corners.
Engineering Advantage: The primary benefit is a reduced mounting footprint. The flat sides minimize the distance from the shaft center to the edge of the flange, allowing the bearing to be mounted closer to base plates or enclosure walls.
Packaging: Facilitates cleaner, box-like housing designs in compact assemblies.
Application: Ideal for compact automation, 3D printers, and Cartesian robots where minimizing the overall carriage profile is critical.
3. LMH-UU Series: The Oval / Cut Flange (Ultra-Narrow)
The LMH (often termed "H-Type" or Trimmed Flange) is engineered for extreme spatial constraints. It features an oval shape created by parallel milling two sides of the flange.
Engineering Advantage: This design achieves the minimum possible width. It eliminates flange overhang, allowing multiple linear shafts to be mounted in close parallel proximity without interference.
Application: Essential for double-shaft assemblies with tight spacing or for mounting onto narrow structural beams and profiles where a square or round flange would protrude.