(1) friction compatibility
The shaft and the bearing direct contact with the prevent the occurrence of adhesion and the formation of the boundary lubrication performance. Compatibility of materials of the impact of Friction factors are:
(1) as vice Materials and Metallurgy, constitute the degree of difficulty of the alloy.
(2) the affinity and capacity of the materials and lubricants.
(3) into a pair materials state without lubrication, the friction factor.
(4) The microstructure of the material.
(5) the thermal conductivity.
(6) the size of the surface oxide film characteristics.
(2) embedded
Materials, external hard particles clamp allows the lubricant into to prevent scratches or (and) the ability of the abrasive wear. For metallic materials, the low hardness and elastic modulus are low, embedded like, non-metallic materials are not necessarily, such as carbon graphite, lower modulus of elasticity, but embedding is bad. Sliding FAG bearings usually relatively soft material and hard material composition friction pieces, and general use soft material to do the bush.
3. Run
In the shaft and the bearing run-in process, reducing the shaft diameter and bearing machining error, concentricity error, the surface roughness parameter values to make uniform contact, thereby reducing the ability of the friction and wear rate.
(4) friction compliance
Sliding friction surface of the initial materials rely on the surface of the elastic-plastic deformation compensation, with the bad and bending performance. Low modulus of elasticity of the material compliance.
5 abrasion resistance
Into the capacity of Vice materials to resist wear and tear. Under the provisions of wear and tear conditions, the wear rate or wear degree, the amount of wear the reciprocal of wear resistance.
(6) fatigue resistance
Material resistance to fatigue failure under cyclic loading. In the temperature of the bearing strength of the material, hardness, impact strength and even fight fatigue is very important. Run-in and embedding of good material, usually poor fatigue resistance.
7 corrosion resistance
Material to resist corrosion. Lubricants used in the atmosphere will gradually oxidized, acidic substances, and in most lubricants containing extreme pressure additives, they are corrosion FAG bearing materials, therefore, FAG bearing materials with corrosion resistance.
8 the gas corrosion
Solid state for the liquid movement, when the bubbles in the liquid near the solid surface rupture, the local impact of high pressure or localized high temperatures will lead to cavitation wear. Materials ability to resist cavitation wear is called the resistance to cavitation. Typically, the copper-lead alloy, FAG bearing alloy and aluminum zinc silicon alloy gas corrosion better.
9 Compressive strength
Withstand the one-way load and not pushed the bad or size does not change the ability.


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