SKU: 11782475671

Dual-Mass Clutch Flywheel - BMW / N20 / F3X

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Description

Dual-Mass Clutch Flywheel - BMW / N20 / F3XLUK is an OEM Flywheel manufacturer for BMW. LuK dual mass flywheels absorb engine vibrations before they are transmitted to the driveline where they can create gear rattle. These units feature a built in damper designed to isolate engine torque spikes and prevent transmission damage. By design, dual mass flywheels cannot be resurfaced. This all makes the LuK dual mass flywheel the ideal solution. With one drawback: the higher the mass reactance of


LUK is an OEM Flywheel manufacturer for BMW.  


LuK dual-mass flywheels absorb engine vibrations before they are transmitted to the driveline where they can create gear rattle.

These units feature a built-in damper designed to isolate engine torque spikes and prevent transmission damage. By design, dual-mass flywheels cannot be resurfaced.

This all makes the LuK dual mass flywheel the ideal solution.
With one drawback: the higher the mass reactance of the vibrating masses, the more excessive the resonance increase and associated torque peaks. With the dual mass flywheel, this would be easily perceived when starting and stopping the engine; much more easily than with a conventional clutch system. Additionally: the smaller flymass of the engine has less of a stabilizing effect on the speed fluctuation of the engine.

Thanks to decades of experience in clutch building, the LuK specialists were able to find an excellent solution to this problem. An additional damping device effectively prevents resonance overload. In normal operation, however, this additional damping device has no function and the torsional vibrations of the engine are filtered out by spring dampers.

Friction and spring rate - the correct ratio is important.
For optimal vibration isolation and soft resonance passage when starting and stopping the engine, the ratio between friction and spring rate must be optimal. The length of the springs is a key factor: The softer a spring, the more efficiently vibrations are isolated. The extra-long springs of the latest generation of dual mass flywheels significantly reduce the spring rate compared to a first generation dual mass flywheel. In routine driving operations, excessive resonance increases are kept almost completely away from the gearbox.

Features and Benefits:

  • Top driving comfort
  • Absorbs vibrations
  • Prevents noise
  • Enables comfortable, low-revs driving
  • Saves fuel
  • Relieves crankshaft and gearbox




    Part #'s


    21-20-7-638-306 / 21 20 7 638 306 / 21207638306


    LuK Part #   DMF154 / DMF 154 / DMF-154



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SKU: 11782475671

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Josh Gerber
Los Angeles, US
★★★★★ 5
The book is also great in pointing to additional resources for further study
Format: Paperback
Other than the Bible, I hesitate to use the term "must read" for a book. This one is definitely a "should read" for anyone who teaches, preaches, or wants to minister more faithfully. The book is engaging, and offers both a negative (doesn't mean this) and positive (means this) response to common urban legends of the NT. You'll be surprised by some beliefs you had that you didn't even realize were not correct, or should be adjusted. The book is also great in pointing to additional resources for further study. Pastors, seminarians, and lay people will all benefit from this book.
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Reviewed in the United States on July 17, 2015
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David Pitman
Charlottesville, US
★★★★★ 5
Rescuing the Bible from its Friends
The inerrant, infallible Word of God has endured countless intentional assaults of misrepresentation by its enemies. Unfortunately it has also had to endure the unintentional insults of misinterpretation by its friends. Dr. Croteau has given us an excellent handbook to gently correct. His specific examples are well considered and his general principles are well established. Highly recommended.
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Reviewed in the United States on August 19, 2015
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T. Durey
Natrona Heights, US
★★★★★ 4
Thoughtful, Encouraging, Didactic and Accessible
The title is what drew me to the book, and then the shortness of the chapters convinced me to take up this book and read it. I've read various types of theology books, but this one addresses underlying viewpoints that the average Christian assumes. While addressing these legends, the author does a wonderful job helping the reader grow in his or her biblical interpretational skills. And the author does this in a way that is both gracious and easy to understand. Even if a reader may not agree with every conclusion, I heartily recommend this book, not only for the legends it addresses, but for the opportunity to learn how to interpret the Bible.
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Reviewed in the United States on January 10, 2017
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Jose Verdejo
Grantham, US
★★★★★ 5
So fun and engaging way to learn the historical and the ...
Format: Paperback
So fun and engaging way to learn the historical and the context of all covered in the book. Highly recommended....
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Reviewed in the United States on October 17, 2016
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Dan Samuelson
Phoenix, US
★★★★★ 5
The author handles some of the most misused scriptures very ...
Format: Paperback
The author handles some of the most misused scriptures very well, I was very impressed with his eye on teaching what the verses really mean as well as the context of the verses as a whole.
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