Do you know the advantages and disadvantages of self-lubricating pom bearing plastik?

pom bearing plastik in general can be divided into plastic rolling bearings and plastic sliding bearing; Plastic rolling bearing and the working principle of pom bearing plastik can by name can distinguish, plastic rolling bearings rolling friction is the friction at work, and plastic sliding shaft· work happens when sliding friction; The rolling friction is mainly depends on the size of the manufacturing accuracy; And the size of the plastic sliding bearing friction is mainly depends on the slip plane of the bearing material.Plastic sliding bearing in general face all have self-lubricating function; Plastic sliding bearing are generally USES the engineering plastic with good performance comparison.

POM is also called the "steel" : good wing formaldehyde and poly (methyl oxidation time, English name polyxymethylene (POM). Neat and crystalline molecular structure makes it has very excellent physical and mechanical properties, a metal plastic said.

Advantage of pom bearing plastik: has excellent comprehensive performance and coloration, has high elastic modulus, high rigidity and hardness, tensile strength, bending strength, excellent resistance to yan deeply degeneration and exhausted, repeated impact resistance, low friction coefficient, good wear resistance, good dimensional stability, good surface luster, have higher viscoelasticity, small water imbibition, electrical insulation, and is not affected by temperature; Small water imbibition, by good insulation and high resistance is not affected by humidity, mechanical performance is affected by temperature is small, high mechanical strength and wear resistance, thermal deformation temperature can be in to 40 degrees to 100 degrees temperature range of use, is for the production of precision plastic bearing, its good self-lubricating properties and low friction coefficient.

Faults of pom bearing plastik: not acid-proof alkali resistance and resistance to ultraviolet radiation moonlight, poor thermal stability of combustion, exposure in the atmospheric aging extremely easy decomposition, decomposition temperature is 240 degrees. pom bearing plastik is a kind of widely used plastic bearings of all, both inside and outside the ball material commonly use POM, keep using glass fiber reinforced nylon PA66, ball for ball, stainless steel or ceramic ball, the bearings alkaline environment well, but is not suitable for operation under acidic corrosion environment.

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