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The working environment of truck clutch parts is very harsh, the sealing performance of clutch release bearing and the grease used are highly required accordingly. According to the requirements of the main machine customers, Tianchi Bearing adopts the slightly contacting sealing for the clutch bearing, whose inner ring is provided with V-groove, forming a labyrinth sealing structure with the seal lip,

The intermediate ring of synchronizer is a single part and an important part of the automobile gearbox synchronizer. The ring is matched with the inner ring and the outer ring of the synchronizer assemblies, enabling, under the effect of friction moment, the synchronous rotation of them after the inner cone of the synchronizer ring contacts with the outer cone of the gear ring to be jointed. At that time, the speed of the gear relative to the synchronizer ring is zero, and the gear is further engaged with the gear ring to be jointed, thus achieving the gear shifting.