

The primary function of axle hub seals is to retain lubrication. Proper lubrication is essential for the smooth operation of moving parts, reducing friction and wear. Without effective sealing, the lubricant can leak out, leading to inadequate lubrication of the gears and bearings, which may cause premature wear and eventual failure of the components.
Gas valves operate through various mechanisms, including manual-operated, electric, and pneumatic controls. Manual gas valves require human intervention to operate, usually involving a simple rotation to open or close the valve. Electric gas valves, on the other hand, are controlled via electric signals, allowing for remote operation and automation. Pneumatic valves utilize compressed air to operate and are often found in automated systems where precision and quick response time are necessary.