ETR, since it was involved in the automotive part industry with its success in domestic production of Synchronizer Rings that art the core functional part of manual transmission in 1986, has expanded its expertise to other relevant parts such as swash-plate. ETR is concentrating its effort in research and development, manufacturing, and production of the core components of automotive power train that require high performance, endurance, and friction. Based upon such specialized expertise and its long technical experiences, ETR is establishing itself as world’s best leading company with great record of supplying require parts to auto maker and their major vendors in the just-in-time system. Besides, ETR participates in the initial system design stage of its customers as their development partner based upon its long accumulated know-how in the fields of R&D and production improvement. As a development partner, ETR gradually is taking upon an additional role as a consulting company by meeting or exceeding customers’ expectation in offering assistance for their system design, development, prototype manufacturing testing and verification data throughout their system process.
Type
TyFeaturespe
Constant Load Synchronizer
Constant load synchronizer rings: Different load may be applied by different operators. Regardless of different loads, it is believed that constant loads are applied to the cone. Such rings are referred to Single Type Synchronizer Rings.
Multicone Synchronizer
Multi-cone Synchronizer: This type of synchronizers consist of two or more cones, thus increasing the contact areas. With such an approach, operating force of operators and the unit pressure of the cones are reduced, resulting in improvement of the wear resistance of the part. The synchronizer rings described are mainly used for high-powered and high performance vehicles.(for example: Double or Triple Type Synchronizer rings)
Servo Synchronizer
Servo Synchronizer : This type of synchronizer rings have been developed by Mercedes Bens of Germany. It utilizes self Apply Principle by the use of Expending Band. This design has an advantage of rapid shifting of transmission with relatively low force by operators but it also has a disadvantage of high wear.
Pin Loading Synchronizer
Pin Loading Synchronizer: This type is mainly used in large vehicles such as trucks. This design utilizes pins instead of gears. It has an advantage of accommodating high load but it also disadvantage of high wear on pins and pin-holes.
