The dual mass flywheel bearing or bushing is a crucial component in
the transmission system of many modern vehicles. Its main function
is to connect the engine crankshaft to the transmission input shaft
while effectively isolating engine vibrations from the vehicle's
chassis and passenger compartment.
The dual mass flywheel consists of two rotating masses connected by
springs and dampers, with the bearing or bushing located at the
interface between the two masses. This design allows the flywheel
to absorb and dampen engine torsional vibrations, reducing noise
and harshness in the vehicle's cabin.
The bearing or bushing itself is a precision-engineered component
made from high-quality materials, such as metal-plastic composites.
It must be able to withstand the high loads and frequent rotations
of the engine crankshaft while maintaining smooth operation and
minimal wear.
Failure of the dual mass flywheel bearing or bushing can lead to
various symptoms, including increased vibration and noise in the
cabin, poor transmission performance, and even damage to other
transmission components. Therefore, it's important to inspect and
replace these components regularly as part of routine vehicle
maintenance.
In summary, the dual mass flywheel bearing or bushing plays a vital
role in ensuring smooth and reliable transmission operation while
minimizing engine vibrations in modern vehicles.
Dual Mass Flywheel DMF Self-lubricating Bearings Supplier
Flywheel Bearing, a complete line of flywheels bushings.
Clutch Bushing Selection
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Automobile Industry Sliding Bearing Dual Mass Flywheel DMF & Seat
Adjuster Self-Lubricating Bearings
VIIPLUS is committed to the production of safe and comfortable
modern vehicles, adhering to the concept of high standards of
application design, function, and performance, to optimize the
selection of bearings for the automotive industry.VIIPLUS offers a variety of bearing solutions for automotive applications.
Typical Applications
VIIPLUS Specifically developed to meet the requirements of RoHS
environmental protection of various types of self-lubricating
bearings used in the automobile industry, such as Double Mass
Flywheel Repair self-lubricating Bearings, when tight round, air
conditioning compressor, fuel pump, start the motor, transmission,
steering pump, steering column, shock absorbers, braking system,
pedal assembly, seat adjustment system, door hinge, hinge,
suitcase, hood wiper, including engine connecting rod,
transmission, balance shaft, and other parts.
Provide efficient products for automotive applications
Even in the most demanding environments, customers can rely on the
unique features of VIIPLUS sliding bearings, including low
friction, high wear resistance, and high reliability.
Bearings for automotive applications include wiper, shock absorber,
seat, gearbox, brake, steering, convertible top, interior, pillar,
lever, pedal and other applications.
Create a superior driving experience
In recent years, the requirement of automobile equipment operation
has been increasing. Our lead-free bearing material, with enhanced
performance, can meet the most stringent performance requirements,
better than ball bearings (limited space and weight, high load and
swing movement may cause damage).
The bearing has many advantages, creating superior driving
performance:
· long service life, reliable and smooth operation
· high wear resistance
Self-lubricating,
· low friction coefficient, low loosening torque, and no stick-slip
phenomenon
· compatible with many standard oils and lubricants
· high precision and stable size
Our self-lubricating bearings advantages
· a wide range of efficient bearing materials and solutions to meet
the most demanding application requirements.
· compact, lightweight solutions reduce fuel consumption and
emissions.
· seat: seat adjuster and height adjustment mechanism.
· continuous innovation of technologically advanced products,
systems, and tools to maintain our leading position in
high-performance bearing technology.
· our application specialists provide technical support and
customer-specific bearing designs to provide comprehensive customer
support.
Metal Polymer Composites Plain Bearing
Improve quality and environmental standards
Our environmentally friendly, lead-free bearings reduce
installation, operation, and maintenance costs.
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, split sleeve, guide bearing
bushing ,flywheel bearing bushing manufacturers
- ROLLED DRY SLIDING BEARINGS ()
- Steel + Bronze Powder + /Fibre
- Wrapped Lined (maintenance-free), self lubricated plain or flanged
bearings, thrust washer and strip, Carbon steel shell with sintered
bronze layer filled with
Double Mass Flywheel Repair self-lubricating Bearings
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 the rotary, linear and oscillating motion.
Strusture
1. /Fibre mixture thickness 0.01~0.03mm. It is the contact surface for the
rotating shaft. Minute partides of the 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 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.
Technical Data
Carbon Steel + Copper Powder + ( + Pb + Filler)
Structure And Composition
· Metal-Polymer Composite Self-lubricating Bushing Material
· Steel Back + Porous Bronze Sinter +
· + Lead
Microsection
| Sliding layer
+ 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
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.
