iglide® Q3E polymer sleeve bearing, metric

iglide® Q3E | Two-component high-load bearings for high quantities

In this iglide® multi-component bearing, the outstanding tribological properties of iglide® Q3 are embedded in a high-strength jacket. The result is an even higher mechanical load capacity with simultaneously low wear. It was designed as a middle ground between iglide® Q2 and our igutex® series for heavy loads. As with all iglide injection-molded bearings, iglide Q3E is made up of base polymers, fibers that increase mechanical strength, and solid lubricants as an inner layer. It is ideal for many heavy-duty industries.

The factor that sets Q3E apart from other iglide materials is the addition of 2K molding, which further improves the mechanical strength of the bearing. The 2K molding serves as a high-strength outer jacket that makes Q3E even tougher than the rest of our iglide bearings while still remaining cost-effective compared to alternative solutions.

Tolerances and measurement system

The installation dimensions and tolerances of the iglide® plain bearings are a function of the material and wall thicknesses. For each material, the moisture absorption and the thermal expansion are imperative. Plain bearings with low moisture absorption can be designed with a minimal amount of tolerance. For wall thickness, the rule is: the thicker the bearings are, the larger the tolerances must be.

Assembly

iglide® bearings are press-fit bearings. The inner diameter adjusts only after press-fit in the proper housing bore with a recommended tolerance. The before press-fit oversized dimension can be up to 2% of the inner diameter. In this manner, the secure press-fitting of the bearing is achieved. Axial or radial shifts in the housing are also prevented.