How to use oil-free bushing? With what use?

Liner effect of the ring sets
  In the field of valve applications, bushings within the valve cover, wrapped stem, the general composite bearing PTFE or graphite and other corrosion-resistant materials, used for sealing.

supplement

Role: protection of the shaft, seat hole, no hair bushing automotive wear and tear; shock absorption, noise reduction; reduce the reduction of disassembly and maintenance;

Material: An imported THORPLAS can be considered under;

Use: no grease, dry running;

Installation: interference fit

Added: Oil-free bushing, as its name implies, without lubricating oil and grease, JDB graphite copper in the use and maintenance convenience, cost savings, time and cost;
Several types:
There are many markets now, there are three main types:
1, the metal substrate, usually copper and lead, the surface of the hole, the hole to add grease; rely on the hole a lot of grease support operation, in fact, a long time also need to refuel;
2, composite bushing, one is the steel back + copper + PTFE Teflon, the other is the steel back + copper + POM POM; are pressed into shape; by lining material to achieve operation, but very Thin, fragile, unbearable when stressed
3, non-metallic self-lubricating bushings: real self-lubricating; nylon, PTFE, as well as race dragon

 Oil-free bushing that white is the improvement of the copper sleeve, when the design, if the light load we will choose copper sleeve and oil-free bushing,
Nowadays most oil-free liners are steel plates with sintered spherical bronze in the center and other surfaces coated with a mixture of polytetrafluoroethylene (PTFE) and lead. Friction coefficient is small, wear-resistant to engage in good corrosion and oil-free lubrication features. Used for a variety of mechanical sliding parts, such as printing presses, textile machines, fitness machines, hydraulic trucks. Some bushings are specially engineered to handle high-speed sports but can not afford heavy loads.
Oil-free bearings in general when I design are low-load low-speed use about 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.