When the rubber sealing ring is installed in the groove, it should be allowed to have a certain amount of expansion space. At the same time, there are certain requirements for the accuracy and surface of groove processing, such as the absence of small grooves, scratches, pits, concentric or spiral processing marks on the groove surface and sealing surface. The usual allowed expansion rate is about 15 in static seals and about 8 in dynamic seals. The scope of use varies for different types of grooves. What are the commonly used forms of grooves?
1. Triangle groove
Commonly used for sealing on flanges and end caps, its disadvantage is that it is difficult to manufacture and the space for rubber sealing rings is very small.
Triangle groove
2. Rectangular grooves are widely used in various sealing applications and can be used with inclined sides when no retaining ring (seal) is required.
Rectangular groove
3. Trapezoidal groove
Only recommended for special sealing applications with O-ring seals and cross-sectional diameters greater than 2.5 millimeters.
Staircase groove
2025 April 4th Week VAFEM Product Recommendation
Various of Clutch Release Bearings, more than 500 types different shapes, applying in the most of American, European, Korean, Janpanese, Asian car and truckes.
Each product develops according to the principles "Professional Design, Well Elaboration, Strict Regulations"
More than 50% of the output are OEM quality bearings.
VAFEM Clutch Release Bearings of buses & trucks have been already widely used for city buses and coaches, after improvements and technical innovations, has been proved to be consistency in high quality, steady warranty.
The Grease of Clutch Release Bearing is all used in imported high quality, high temperature resistant grease.
2025-04-27