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Axle Sleeve Cylindrical Mechanical Parts
Hxseals Industry Co.,Limited | Updated: Jun 22, 2017

Axle Sleeve Cylindrical mechanical parts

The sleeve is a cylindrical mechanical part mounted on the shaft and is an integral part of the plain bearing.

In general, the sleeve and the bearing seat with interference fit, and with the shaft with the gap with.

Concept editor

The sleeve of the protective shaft made of the whole cylindrical shape is called the sleeve

The bearing is equivalent to the outer ring of the sliding bearing, the sleeve is integral, and the relative axis is moving, and the bearing pad is fragmented, the opposite axis is rotating.

In the LEGO Mindstorms series and the BioTrans RoSys series of robotic components, the sleeve is specially made of silver gray LEGO standard shaft retainer, divided into full sleeve and 1/2 sleeve.

The major water conservancy generating units on all types of bushings, the main materials are ZQAl9-4, ZQSn10-1, ZQSn6-6-3.

Differences in editing

A sleeve is a sleeve on a propeller shaft or a stern shaft. The bearing (the Japanese called "shaft by") is a component in the mechanical transmission process that fixes and reduces the load friction coefficient.

The same is true for both the sleeve and the bearing, both of which bear the load of the shaft.

And the difference between the two is the overall structure of the sleeve, the rotation is the relative movement between the shaft and the sleeve; and the bearing is split, the rotation is the relative movement of the bearing itself inside and outside the outer ring. But in essence, the sleeve is actually a kind of sliding bearings.

Common cause of damage edit

Shaft Sleeve In the course of long-term operation, the journal surface by the expansion of the extrusion force and the role of composite mechanical force, will lead to its permanent deformation, diameter or reduced 0.1mm ~ 0.3mm. And thus lead to mechanical expansion with the strength of less than the required tightening force, between the sleeve and the spindle with the gap, causing the sleeve wear.

Latest fix method edit

As the value of the larger components, the traditional method of repair is more expensive, with the development of advanced polymer composite materials and other advanced technology, some repair fast

At the same time, low maintenance methods are favored. China has also introduced this method, more mature blessing blue 2211F materials. Material with the traditional method can not match the comprehensive mechanical properties, excellent adhesion and resistance to temperature and corrosion resistance, the maximum compressive strength of up to 1200kg / cm2, adhesion (overlapping shear tensile test) in the smooth steel surface of 225 Kg / cm2. So it can be used for large sleeve parts of the wear and tear repair. And equipment does not require a wide range of demolition, for enterprises to save a lot of manpower and resources.

Bushings / bushings

Plastic sleeve specifications: POM POM plastic sleeve, PA nylon plastic sleeve, PTFE PTFE plastic sleeve, Teflon plastic sleeve, Teflon plastic sleeve. Plastic sleeve characteristics: acid, alkali, corrosion, mechanical strength, with good wear resistance, heat resistance, oil resistance. Plastic sleeve material PTFE / Teflon / Teflon / polytetrafluoroethylene, POM, nylon PA. Products for aerospace, automotive, sensors, medical, satellite, valves, pumps, sanitary ware, electronics, bearings, electrical appliances, and other industries.

Bimetallic bushings part of the material, is a patented product, is a profile, standardized bushings of new products. Mainly for a variety of bushings processing enterprises and general machinery plant and machinery repair and other enterprises, to provide bimetallic sleeve parts near the final shape material (Near Net Shape Material). With this bimetallic bushing part-like material, only a very small amount of machining (eg chamfering, drilling, car or oil sumps) can be used as a direct-mounted sleeve.


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