POM and PA material with good mechanical strength and wear resistance, suitable for making more precise plastic bearings, working temperature from 100 ℃ to 60 ℃ ~, high strength and smooth surface, basically there will be no tension, its good self-lubricating properties and low friction coefficient, on the basis of traditional advantage in keeping the plastic bearing, can be applied to precision and high speed running.
POM plastic bearing is one of the most widely used in all plastic bearings. Generally, the inner and outer ball materials are POM or PA, and the cage is glass fiber reinforced nylon 66 (GRPA66-25). Ball bearings are glass, stainless steel or ceramic balls. These bearings perform well in alkaline conditions but are not suitable for operation in acid corrosive conditions
Features:
(1) large rigidity, high hardness, even at low temperature, high impact strength;
(2) Excellent elasticity and good creep resistance;
(3) High heat stability and very good dimensional stability;
(4) Good sliding performance and wear resistance;
(5) physiological inertia, suitable for contact with food.
(6) not resistant to strong acid and strong oxidant, poor adhesion paint
Main uses: mechanical and electrical equipment, fitness equipment, food machinery, furniture and decoration building materials
PTFE high temperature corrosion resistant plastic bearing
As a new engineering plastics materials, PTFE and PI was proved to be all known mechanical strength in engineering plastics dimension stability and high temperature resistant performance is good, including PTFE long using temperature is 260 ℃, PI long-term use temperature is as high as 300 ℃, and it has excellent corrosion resistance, the moderate intensity of acid and alkali corrosion environment will still be able to function properly.
Therefore, PTFE or PI is generally used to make outer ring materials, and the ball is usually Zro2 or Si3N4 ceramic ball. The disadvantage of bearings that operate precisely in harsh environments is that the material itself is relatively expensive, so the use cost is high
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