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Metal Polymer Composites Plain Bearing | Dual mass flywheel repair Self-lubricating bearings bush solutions

Basic Infomation
Place of Origin: Zhejiang, China (Mainland)
Brand Name: VIIPLUS BUSHINGS SUPPLIER
Certification: ISO 9001
Model Number: TEFLON DU DX BUSHINGS
Minimum Order Quantity: 1000 Piece/Pieces
Price: $0.05 - $1.00 / Pieces
Packaging Details: Packaging: Export carton; Wooden case ; Wood pallet.
Delivery Time: 7~15 work days
Payment Terms: TT in advance,Western Union
Supply Ability: 800000 Piece/Pieces per Month
Detail Infomation
Meterial: Carton Steel , Bronze , PTFE Plating: Tin Or Copper
Characteristic: Low-maintenance And Maintenance-free Plain Bearings Type: Bushes, Collar Bushes, Washers, Strips Or Special Designs
Size: Standard Size Available Quality: OEM
Port: Shanghai Application: DMFW Bushing

Product Description

Double mass flywheel like hamburger? 

Self-lubricating bearings repair bushing solutions

 

Rolling bearing is a kind of rolling bearing, which is based on high quality cold-rolled steel plate and sintered with porous spherical bronze powder in the middle, and then sintered with a mixture of PTFE and fiber on the surface of porous spherical bronze powder, and rolled.
This product has the characteristics of small friction coefficient, abrasion resistance, good corrosion resistance and self-lubrication.Using this product can reduce the cost, reduce the mechanical volume, avoid the phenomenon of shaft biting and reduce the mechanical noise and other characteristics.
This product has been widely used in various mechanical sliding parts, such as printing machine, elevator, textile machine, tobacco machine, fitness machine, hydraulic conveyor, micro-motor, solenoid valve, automobile and agricultural and forestry machinery.

 

 

Metal Polymer Composites Plain Bearing

 
Self-lubricating bearing, moving it against the clutch diaphragm spring fingers. ... Dual-Mass Flywheel prevent engine torque spikes from exceeding engine and ... self-adjusting cable systems, are in constant contact with the diaphragm spring fingers.
 
self-lubricating materials meeting RoHs environmental requirement in automobile field. Oilless bearings are installed at over 30 parts of an automobile, such as door hinge, engine hood hinge, trunk hinge, windscreen wiper, shock absorber, steering system, pedal assembly, seat angle regulator and starting motor.
 
Self-lubricating bearing widely use in dual-mass flywheel.
A dual-mass flywheel is a rotating mechanical device that is used to provide continuous energy in systems where the energy source is not continuous, the same way as a conventional flywheel acts, but damping any violent variation of torque or revolutions that could cause an unwanted vibration. The vibration reduction is achieved by accumulating stored energy in the two flywheel half masses over a period of time but damped by a series of strong springs, doing that at a rate that is compatible with the energy source, and then releasing that energy at a much higher rate over a relatively short time. 
 
What is a Dual Mass Flywheel? | Metal Polymer Composites Plain Bearing | Dual mass flywheel repair bush solutions
DU Composite slide Bearing, SF-1 bushing,SF-1 bush beairng,DP4 bushing
 

 

What is DU composite bearing?

 

Composite dry sliding bearings are primarily used for bearing arrangements where heavy loads have to be supported and where rotational or oscillating movements are relatively slow.

 

Where to use DU composite bearing?

 

Because of their good sliding properties and compact design, these plain bearings are particularly suitable for bearing arrangements where:
Maintenance-free operation is a prerequisite
There is a risk of lubricant starvation
Lubricants cannot be used or are forbidden
Space is limited.

 

Why choose DU composite bearing?

 

Maintenance-free operation
No lubrication required (PTFE composite)
Initial lubrication required (POM composite)
Minimum wall thickness, minimum space requirements
Accommodation of heavy loads
Wide range of temperatures
Good sliding properties
Virtually no stick-slip
High wear resistance

 

Double mass flywheel like hamburger?

Metal Polymer Composites Plain Bearing | Dual mass flywheel repair Self-lubricating bearings bush solutions
Double mass flywheel structure is very simple, the first mass flywheel and engine crankshaft output flange connected, the second mass flywheel through a self-ubricating bearing mounted on the first mass flywheel, the second mass flywheel with clutch cover.There is a shock absorber connection between the two flywheels.
 

Double Mass Flywheel (DMFW) is a new structure applied in the automotive power transmission system in the late 1980s, which can effectively isolate the torsional vibration of the engine crankshaft and is conducive to improving the performance of the vehicle.
 
Metal-Polymer Anti-Friction Plain Bearings Double Mass Flywheel DMFW bushings
 
sliding bushing ,sleeve bushing, DU split sleeve, guide bearing bushing ,flywheel bearing bushing manufacturers
 
 
  • ROLLED DRY SLIDING BEARINGS (PTFE)

  • Steel + Bronze Powder + PTFE/Fibre(DU)

  • Wrapped PTFE Lined (maintenance-free), self lubricated plain or flanged bearings, thrust washer and strip, Carbon steel shell with sintered bronze layer filled with PTFE

 

TYPICAL APPLICATIONS

Double Mass Flywheel Repair self-lubricating Bearings

 

Metal Polymer Composites Plain Bearing | Dual mass flywheel repair Self-lubricating bearings bush solutionsMetal Polymer Composites Plain Bearing | Dual mass flywheel repair Self-lubricating bearings bush solutions

Cars

A passenger car with at least 30 parts with self-lubricating bearings. Shock absorbers, brake systems, pedal assembly, seat adjustment systems, door hinges, air conditioning, air conditioning compressors, secondary air valves, fuel pumps, starter motors, gearboxes, steering pumps, Luggage hinges, hood hinges, wiper and so on. At the same time, in various types of commercial vehicles and trucks are also widely used in a variety of self-lubricating bearings, including the engine connecting rod, gearbox, balance shaft and other parts.

 

In view of the different characteristics of different parts of the car, VIIPLUS developed different self-lubricating sleeves applicable to different parts. Such as: special collar up tight round collar, shock absorber, shock absorber and piston guide assembly, transmission shaft sleeve and sleeve gasket, seat adjustment system, door hinge hinge axle sleeve and trunk, wiper collar, air conditioning compressor shaft sleeve, start the motor shaft sleeve, power steering pump bearing bushings, steering system and brake system and pedal assembly shaft sleeve, etc.

 

 

CHARACTERISTICS



VSB-10 Self-Lubricating Multilayer Composite Bushing

  • Bushing material suitable for lubricated applications

  • self-lubricating bushings offer very good wear and low friction performance over a wide range of loads, speeds and temperatures in dry running conditions

  • Anti-friction bearing suitable for linear, oscillating and rotating movements 

  • Material is designed to operate without supplemental lubrication and will perform excellent when lubrication is present. Low friction, low wear rate, good sliding characteristics and very low absorption are a few of the features of this material. VSB-10 bushings will support rotary, linear and oscillating motion.

 

STRUSTURE

 
1. PTFE/Fibre mixture thickness 0.01~0.03mm. It is the contact surface for the rotating shaft. Minute partides of the PTFE layer and the sintered bronze material combine to create a solid lubricant film, which coats the shaft.
 
2. Sintered bronze powder thickness 0.20*0.35mm,A special composition of powdered copper is thermally fused to the steel backing. This contact layer acts as an anchor for the PTFE layer and conducts the thermal build up away from the bearing surfaces.


3. Low-carbon steel backing. Setting the foundation of the bushings, the steel back provides exceptional stability, load carrying and heat dissipation characteristics.

Metal Polymer Composites Plain Bearing | Dual mass flywheel repair Self-lubricating bearings bush solutions

TECHNICAL DATA

Carbon Steel + Copper Powder + (PTFE + Pb + Filler) 

STRUCTURE AND COMPOSITION

· Metal-Polymer Composite Self-lubricating Bushing Material
· Steel Back + Porous Bronze Sinter +
· PTFE + Lead

MICROSECTION

 

Metal Polymer Composites Plain Bearing | Dual mass flywheel repair Self-lubricating bearings bush solutions

Sliding layer
PTFE + Lead
 
Porous Bronze Sinter
Steel Backing
 

 

OPERATING PERFORMANCE

Dry

Very Good

Oil lubricated

Good

Grease lubricated

Fair

Water lubricated

Fair

Process fluid lubricated

Fai

Technical Data

Max. load

Static

250N/mm2

Dynamic

140N/mm2

Max. speed

Dry

2m/s

Lubrication

>2m/s

Max. PV (Dry)

Short-time

3.6N/mm2*·m/s

Continuous

1.8N/mm2*·m/s

Temp.

-195℃~+280℃

Friction coefficient

0.03~0.20

Thermal conductivity

42W (m·k)-1

Coefficient of thermal expansion

11*10-6k-1

AVAILABILITY

 

Bearing forms available in standard dimensions
· Cylindrical bushes
· Flanged bushes
· Thrust washers
· Flanged washers
· Sliding plates

 

 

 

 

 

Metal Polymer Composites Plain Bearing | Dual mass flywheel repair Self-lubricating bearings bush solutions

The main factors affecting the life of self - lubricating bearings


1: load P: the greater the load, the shorter the service life of the bearing;Under no circumstances shall the maximum load exceed the theoretical maximum allowable load.
2: speed V: the higher the speed, the shorter the service life of the bearing;Under no circumstances shall the maximum sliding speed exceed the theoretical maximum allowable value.
3: PV value: the working life of the bearing depends on the PV value, that is, the product of the actual load P and the sliding speed V. The smaller PV value is, the longer the bearing life is.
4: temperature: the life of the bearing also depends on the temperature when the bearing is in use, the higher the temperature, the shorter the life of the bearing, so in the design and selection should try to consider the heat dissipation characteristics of the relevant parts.
5: surface roughness of the grinding parts: alloy steel or hard chromium plated shaft is used for the grinding parts. When the surface roughness Ra=0.4-0.63, the service life of the bearing can be significantly improved.
6: other factors such as bearing design, lubrication conditions, etc

 

 

viiplus products are widely used in all industrial fields

Widely used in hydraulic and pneumatic industries, forging machine tool industry, plastics machinery industry, lifting and handling machinery, port machinery, office, fitness machinery, textile machinery, food packaging, filling machinery, chemical machinery, printing and packaging, paper making machinery, automobiles, railways Steam locomotives, shipbuilding industries, presses, metallurgical machinery, construction machinery, etc.

 
Metal Polymer Composites Plain Bearing | Dual mass flywheel repair Self-lubricating bearings bush solutions
 
 
 
 
 
 
 

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