Bearing classification

Update:23-03-2019
Summary:

(1) Standard type, clearance-adjustable linear bearing, […]

(1) Standard type, clearance-adjustable linear bearing, open linear bearing, extended linear bearing, universal linear bearing

(2) Flange type linear bearings can be divided into: round flange type, method blue type, elliptical flange type, guide round flange type, guide method blue type, guide elliptical flange type, extended round flange type.

According to the specification system:

Divided into two series, LM and LME series. Its code name LM series is used in Asia, Southeast Asian countries, Japan, South Korea, China and so on. In terms of metric size, the tolerance of the outer diameter of the linear shaft is generally h7. The LME series is mostly used in Europe, the United States, Germany, Italy and other regions. In the inch size, there are also metric sizes, and the tolerance of the outer diameter of the linear shaft is generally g6. Two series of structural features, in addition to different sizes, different aperture tolerances, the structure is roughly the same. Example 1: LM 203242 UU OP LM Representation Line First Series Standard

203242 indicates the size structure. Hole diameter Outer diameter Length UU indicates double seal structure OP indicates open type Example 2: LME 203245 UU AJ

LME stands for the second series of standards

203245 indicates the size structure, aperture, outer diameter, length

UU means double seal structure AJ means adjustable gap

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