How to use oilless bushing? With what use?
2018-04-03
Padded liner
In the field of valve applications, the bushing is inside the valve cover, and the bushing material is used to hold the valve stem. Generally, PTFE or steel plate graphite and other corrosion-resistant materials are used for sealing.
supplement
Role: protect the shaft, seat hole, without sliding sleeve wear; shock absorption, noise reduction; reduce reduce disassembly and maintenance;
Material: An imported THORPLAS can be considered;
Use: no grease, dry running;
Installation: interference fit
Added: Oil-free bushings, as the name suggests, do not add lubricating oil and grease, convenient in use and maintenance, cost savings, time, cost;
In several ways:
There are many in the market today. There are three main types:
1, the metal matrix, generally copper and lead, the surface of a hole, add grease inside the hole; rely on a lot of grease to support the operation of the hole, in fact, a long time also need to refuel;
2, composite liner, one is steel back + copper powder +PTFE Teflon, the other is steel back + copper + POM polyoxymethylene; belongs to the press molding; rely on the inner wall of the bush to achieve the operation, but very Thin, fragile, unbearable when pressure is high;
3, non-metallic self-lubricating bushes: true self-lubricating; nylon, PTFE, and Sailong
The oil-free bushing is very white. It is a modification of the copper bushing. In the design, if the light load, we will choose the copper bushing and the oil-free bushing.
Most oil-free bushings today are steel plates with a spherical sintered bronze powder in the middle, and the surface is sprayed with other substances such as a mixture of polytetrafluoroethylene (PTFE) and lead. Low friction coefficient, good wear and corrosion resistance and no oil lubrication. Mostly used for sliding parts of various machinery, such as printing presses, textile machines, and fitness equipment hydraulic trucks. Some bushings are specially processed to withstand high-speed movements, but cannot withstand heavy loads.
Oilless bearings are generally designed for low load and low speed 1000 rpm.
Hunan Jintai Hardware and Machinery Co.,Ltd. is a professional manufacturer on various kind of bearings over 15 years China factory.
We are making all kinds of slide bearings including DU PTFE composit bushing, DX POM composite bushing,bimetal bushing,wrapped bronze bushing, cast sliding bushings and wear plate bearing pad, sintered bronze bushing and sintering parts, ball transfer bearings, etc.
The shapes of bearings can be in sleeve, flanged, spherical, plate, washer, pad, ring, square etc.
Base materials in carbon steel, harden steel, iron, stainless steel, bronze, brass, copper, bronze-steel alloy.Lubricant materials in PTFE, teflon, POM, nylon, plastic, oil, graphite, grease, MoS2, etc.
Export to America,Canada,Brazil,Peru,Argentina,Chile,Paraguay,Europe,Finland,France,Germany,Italy,Spain,Sweden,
Britain,Estonia,Ukraine,Turkey,Austrial,Russia,Korea,Malaysia,Singapore,Thailand,Egypt,Kenya,Somali,
Congo,Zimbabwe,South Africa,etc.
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