KYOWA METAL WORKS CO., LTD.
Japanese
Home Our Company Products New Technology Topics Contact
Synchronizers Lever synchronizers About Synchronizers
About Synchronizer
   
Where are synchronizers used in the car?
Where are synchronizers used in the car? You will need the latest version of the Flash plug-in to view this movie. If the movie does not appear on the screen of your computer, click the button below to download the latest Flash plug-in.

About Synchronizer
We believe you now have basic understanding of where our products, synchronizer rings, are used in which part of automobiles. Based on that understanding, allow us to get into more detail.
A transmission serves the function of matching the power a car needs and the output an engine produces.
The torque produced by the engine must be transmitted to the drive wheels at appropriate gear ratios at all times according to changing driving conditions of the car.
Manual transmission
Manual transmission Although gear ratios can be obtained by gears alone, synchronizers are necessary to facilitate smooth gear changes, from first to second for example.
Synchronizers serve to let shafts and gears (sleeves and gears in most cases) engage with each other smoothly after their speeds have been synchronized. That is, synchronization means eliminating differences in rpm between different components.
Synchronizer is a kind of a clutch, and it allows components turning at different speeds to synchronize their speeds by using cone friction.
Synchronizers have two important functions: synchronizing speeds of components, and preventing engagement of gears until synchronization is achieved. At the same time, they must satisfy durability and operability requirements.
Selecting materials that can endure cone friction and designing mechanisms which enable faster synchronization with less force (operating force) are important factors. Only when these factors are satisfied, high quality and cost effective synchronizers can be manufactured.
Manual transmission
Synchronizer The most important components of a synchronizer are synchronizer ring, having friction surface, and its mating cone (with conical surface). Some cones are integrated with gear sets while others exist as separate cone rings. Synchronizers that have multiple (two or three) friction surfaces in one set of synchronizers have come into practical use and are referred to as multi-cone synchronizers, with double-cone synchronizers and triple-cone synchronizers as being examples.
Our unique “Lever Synchronizers” are also available. Equipped with a lever that makes use of the principle of leverage, each of our lever synchronizers can magnify force against friction surface.

Click here for more information about the Lever Synchronizers.


A reverse-type synchronizer is also available as one of the lever synchronizers. This type of synchronizers is adopted to fifth gear in order to prevent reverse gear noise.

Click here for more information about the reverse-type lever synchronizers.
Synchronizer
HOMEOur Company|Products|New TechnologyTopicsContact PageTop
Copyright(c)2004 KYOWA METAL WORKS CO., LTD. All Rights Reserved