In the 62*72*12 configuration, material choice is dictated by the peripheral speed and the lubricant type. Our NBR (Nitrile) variant is the pragmatic choice for standard industrial oils and greases, operating effectively between -30°C and 100°C. For applications involving high-speed rotation or aggressive chemical exposure, we recommend FKM (Viton). FKM offers superior resistance to thermal degradation up to 200°C and maintains its flexibility longer, preventing the split joint from becoming brittle and leaking over time.

The primary engineering advantage of this seal is the elimination of “shaft rework” and complex teardowns. During installation, the shaft must be cleaned and lightly lubricated. The seal is wrapped around the shaft, the spring is connected, and the joint is typically positioned at the “12 o’clock” position (above the oil level) to further minimize the risk of static leakage. It is a pragmatic, reliable fix for aging equipment where a traditional seal replacement would require days of labor. Because the 12mm width provides a large contact surface, it remains stable even in housings with minor axial vibration.