What is the design and purpose of flywheels and gears?

Flywheels and gears are drivetrain components installed between the engine and the transmission or within power transmission mechanisms. A flywheel consists of a working body, a surface cooperating with the clutch, and often a starter ring gear, while a gear has teeth, a hub, and seating surfaces. Their task is to stabilize engine operation and transfer rotational motion between cooperating components, respectively.

What are flywheels and gears used for?

Flywheels are used to balance engine operation and transmit torque to the clutch and gearbox. Gears are used to change and transfer gear ratios in drivetrain mechanisms where precise meshing and proper contact of working surfaces are essential. Without these elements, the drivetrain would not operate smoothly, and gear shifting and starting would be disrupted.

What is the design and function of a dual-mass flywheel?

A dual-mass flywheel is a component composed of two cooperating masses connected by a system that dampens torsional vibrations. It serves to limit vibrations transmitted from the engine to the gearbox, which improves driving comfort and protects other drivetrain components. In practice, it works with the clutch disc, pressure plate, and crankshaft, and its compatibility should be verified according to the OEM number and vehicle version.

How to select flywheels and gears for a specific car?

The safest way is to compare the OEM part number, interchangeable numbers, transmission type, and fuel type. It is also worth checking the engine version, mounting method, and installation location, as these features can differ even within a single model. Verification by VIN is also helpful when purchasing.

What symptoms indicate wear of flywheels and gears?

Typical symptoms include vibrations when starting, noises during drivetrain operation, problems with gear shifting, and difficulty starting. For gears, signs of chipping, uneven tooth wear, and abnormal noises from the transmission are also significant. Such symptoms should be verified before further vehicle use.

What does proper installation and inspection of these components involve?

Installation should take into account the compatibility of the part with the vehicle version, the condition of cooperating surfaces, and correct seating on the intended mounting points. Before installation, it is worth assessing the wear of the ring gear, teeth, operating clearances, and components cooperating with the clutch or transmission. After installation, it is important to check the system's operation during starting and gear shifting.

Flywheels & Flexplates

At the Global Parts automotive store, we offer a wide selection of original used car parts, including flywheels and gears for many popular car brands such as BMW, Mini, Mercedes, Audi, Volkswagen and others. The flywheels and gears we offer undergo quality control so that you can be sure that you are receiving a top-class product.

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BMW E90 E91 E92 LCI 320d Diesel N47N Dual Twin Mass Flywheel Clutch Kit

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BMW E38 Flywheel 728i M52 Petrol Ring Gear Manual Gearbox 7512474

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Mercedes W176 W246 OM651 Dual Twin Mass Flywheel Gearbox Automatic A6510305605

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BMW Z4 E85 2.2i 2.5i Petrol M54 Dual Mass Flywheel Twin DMF 7519493

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Mini Cooper One R50 R52 Petrol W10 Clutch Pressure Plate Disc Kit Set 7561754

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Audi A6 C8 Dual Twin Mass Flywheel Gearbox Automatic 2.0 Petrol 06L105266C

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Mercedes W204 M274 Flywheel Automatic Gearbox Starter Ring Gear A2740300012

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BMW 3 5 Series E90 LCI F10 F30 F31 F32 Automatic Gearbox Flywheel Ring 7800051

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Gearbox Flywheel Mercedes R170 M111.973 Starter Ring A1110300712

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BMW X3 E83 X5 E53 E60 E90 E92 M57N M57N2 Automatic Gearbox Flywheel 7788746

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