KOREAN

The automotive industry is undergoing constant changes and improvement incorporating high power engines, AMT, and DCT. ETR has prepared itself to cope with such changes and trend promptly in the global prospective.
The friction characteristics of Synchronizer Rings are determined by the friction characteristics of raw material. It is attained only by the optimum composition of a variety of raw material and production technique. These techniques are near impossible for other firms to match  or copy. Backes up by these accumulated expertise,  ETR has completes development of its unique new and superior carbon friction material to replace the existing alloy. ETR guarantees that the new carbon friction material provides distinctly upgraded friction and endurance.Drivers of the vehicles with the Carbon Coated Synchronizer Rings installed will experience smooter transmission feeling and more comfortable driving.

Categories

Description

Characteristic

PAPER DISC / PAPER
SYNCHRONIZER-RING

Linter Pulp(Aramid Pulp) is base material for paper discs and all kinds of special chemicals has soaked into them. It is good for both the wet friction discs and the sychronizer-ring application.

– Higher friction coefficient (μ:0.13) compared with copper alloy
– Better elasticity (Better feeling) 
– Higher absorption (including absorption of foreign materials)
– Absence of noise or vibration.

RESIN SYNCHRONIZER-RING

Phenol resin is a main material.
It has been designed for the sychronizer-ring application.

– Lighter than other materials (Light weight)
– Good resistance to oil
– Good heat resistance (optimal operating temperature 120℃)

CARBON SYNCHRONIZER-RING

 

Carbon-Fiber based friction meterial.It has been designed for the high performance sychronizer-ring application such as high powered car,DCT, AMT, etc.

– It has no variation in the coefficient of friction.
– It has high heat resistance. (Application temperature at 250º C has no adverse effect).
– It has high endurance against extreme shifting of transmission.
– It has high endurance against impacts. 
– It is excellent in general endurance.

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