Bushing MFG has been giving the world options for over 15 years with top-notch PTFE bearings, also known as self-lubricating bearings. These bearings have a self-lubricating feature with very low friction and high wear resistance values to meet all of the needs of our customers.
As a manufacturer of self-lubricating bearings in China, Bushing MFG is providing over 200 million PTFE sliding bearings to dealers and end-users each month. With our team of experts, we offer you a one-stop solution for all designs of PTFE bearings, with various applications, such as agriculture, aerospace, automobiles, elevators, and more.
PTFE slide bearings are carbon steel or bronze backed with a sintered bronze layer in the middle and an interior polytetrafluoroethylene (PTFE) layer, which forms a lubricating film to protect the shaft during machine operation. Steel-backed bearings are coated with various metals for protection against corrosion.
These bearings are also known as self-lubricating bushings because they do not need oil to function and can work completely dry. These are fully maintenance-free. By adding a little oil to these bushings you will lower the friction much more and ease the machine working.
The main advantage of PTFE bushings is that they can operate at extreme temperatures, from 195°C to 280°C ( 319° F ~ 536° F ) without expanding or getting brittle. This is because they have very excellent heat dissipation properties. Other benefits include abrasion resistance, low noise, no vibration, no pollution, no water or oil absorption, and last but least, they have thin walls and are lightweight so they can fit in small spaces and reduce the machine’s weight.
Bushing MFG manufactures PTFE sleeve bushes in various designs and shapes, such as sliding plates(strip), half-bearings, thrush washers, flanged bushes, and cylindrical bushes. We can also make any custom shape and size according to the customer’s demands.
PTFE sleeve bearings are widely used in sliding components of different machines, such as motors, automobiles, piston pumps, gear pumps, textile machines, injection molding machines, sports equipment, office accessories, and many more.
Bushing MFG can make its bushings with a lot of different materials according to work conditions. The customer can select the material base according to their needs, such as working environment, load, speed, moving method, installation, or budget. Bushing MFG also provides you with a one-stop solution for both OEM and ODM orders. Whether you are a retailer, distributor or manufacturer, we can always satisfy your needs.
These bearings consist mostly of a bronze or steel plate, which is firstly coated with sintered bronze and afterward with PTFE. These have excellent self-lubricating and wear resistance properties.
Cylindrical PTFE bearings are in the shape of cylinders. Their corners are plain. These are used in hydraulics, shock absorbers, gear pumps, fitness equipment, automobiles, e.t.c.
Thrust washers are placed between a rotating surface and a fixed part. They allow side to side motion on a shaft and prevent movement along that shaft. They also present a surface on which a bearing is mounted.
These are also the same as plain bushings, but flanged thrust washers have a rib, collar, or rim projecting from their corners. A flange is used for strengthening and attachment purposes.
As the name describes, half-bearings are not fully circular, but they are more like half circles. These are used where the load is in one direction and is sufficiently heavy to keep the journal on bearing, such as in railway cars.
Apart from the above designs, we can also make bearings completely based on your designs. You can also make changes to the above designs.
Bushing MFG is one of the leading non-oil slide bearings manufacturers in China. We not only offer a wide variety of plain bearings, but the rates are highly affordable too.
In this quick and brief guide, you’ll be able to know about the specifications of PTFE slide bearings that Bushing MFG offers.
You can also contact us for more information. So have a look and let us know if you have any questions!
PTFE stands for Polytetrafluoroethylene. PTFE bearings have a dry lubricant, PTFE coating as a base material (sliding layer) with bronze, steel, or stainless steel as their backing material.
These are also called self-lubricating or non-oil bearings. As the name suggests, you don’t need to lubricate your bearing off and on. These are maintenance-free bearings that provide lubrication to themselves, during the operation.
Self-lubricating bearings have put an end to the malfunctioning of appliances due to starved lubrication.
PTFE bearings come in various designs so that they can be used in a wide range of applications.
PTFE bearings are mostly in applications where bearing lubrication can not be done daily, and self-lubrication is needed. PTFE can be used in both light and heavy load areas, but PTFE bearings are very suitable for heavy loads and moderate speeds.
The most famous applications of PTFE bearings are given below;
Polytetrafluoroethylene ( PTFE ) or Teflon bearings have a lot of advantages over other kinds of bearings.
The very famous benefits of PTFE bearings are given below;
The PTFE bearing has 4 main components;
The backing of PTFE bearings is manufactured from one of these 3 materials;
In steel-backed PTFE bearings, a thin layer of tin is coated on the outer surface to prevent corrosion. In contrast, bronze-backed bearings do not need a protective layer.
There is a layer between the backing and the sliding layer called the Intermediate layer. An intermediate layer is mostly made up of sintered bronze.
A sintered bronze layer is applied to the backing due to the following reasons;
There are many factors that affect the lifespan of PTFE bearings;
The lifespan of a PTFE bearing is decreased by contaminants, such as dust, moisture, chemicals, e.t.c. So, it is very necessary to use bearings in a clean environment as much as possible.
The lifespan of PTFE bearings can be greatly increased by frequent maintenance. Lubricating a bearing decreases the chances of wear down by contaminants and increases its life expectancy.
The life expectancy of a bearing is measured by L10 life. L10 life is defined as the number of revolutions or hours that a 90% group of identical bearings can survive before they expire.
Most PTFE bearings can survive 4 – 5 times more than their L10 lifespan. they are can be used for 8 – 12 years.
The price depends on the following factors;
PTFE bushings have either steel or bronze or stainless steel backing.
Bronze is expensive than steel because;
So, bronze bearings may be costly, but they also work better and run longer than steel bearings.
The price of a bearing also depends upon its size. Large size bearings will be costlier than small size bearings because large-size bearings use more material and work hours to manufacture.
Complex design bearings are more costly than simple design bearings.
Adding a personal logo will also add a little money to the overall price of bearings.
The average price of Bushing MFG Bearings is: $0.5 – $3
Shaft hardness, shaft roughness, max sliding speed, max load capacity, friction coefficient, thermal conductivity, linear expansion coefficient, operating temperature range, shaft, and housing tolerance values. asking our sales for the newest catalog.
Our factory has 1S0 1900-2015, RoHS, SGS, TSI-16949, and TUV certificates, which means we always ensure strict quality checks during manufacturing.
Yes, we can produce any kind of bushings. We have both OEM and ODM services available. We at Bushing MFG have 10+ years of experience in manufacturing different designs of bushings for various applications.
You can see the chart below to customize your own PTFE bearing according to your needs;
HS codes are internationally accepted 6 – 10 digits codes that are used to determine the custom tariffs on imported products.
Custom duties change from time to time and are different for each country.
This is where HS codes become helpful. You can give your bearings HS codes to your government, and they will provide you with an exact cost of customs duties.
The HS code of our PTFE bearings is : 8483300090
The delivery time of your order depends on factors:
We can produce 200 million bearings per month. So, If you choose our standard designs, we can manufacture, inspect, and pack them on the same day. But if you have a custom design, it will take up to 15 days for its production.
Then after that, the delivery time will depend upon shipment duration. Due to the coronavirus pandemic, shipment may take more than 30 days.
Inform us in advance if you have urgent orders. We can increase our working hours and will complete your orders on the assigned dates.
Bushing MFG’s PTFE bearings have the following advantages over other local ones;
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