This unit is a seal that is appropriate for use in a wide variety of applications such as industrial gearboxes, etc. The unit provides a durable and secure seal for the housing bore, and is resistant to vibration, heat expansion and split housings. It also resists dirt and contamination resulting from metal abrasions, and debris within the lubricant. The unit can be used with low viscosity substances and gases. This compact unit is ideal for small narrow spaces, and