Transmission products are mechanical components that transfer power and motion from one point to another. They are used in various industries, including construction machinery, industrial automation, and material handling systems. 

Some examples of transmission products include: 

• Gears: A set of two or more gears that work together to change the speed, direction of rotation, or torque multiplication/reduction in a machine. 
• Chains: A roller chain and two or more sprockets that transmit power between two components that are at a greater distance. 
• Shaft couplings: Connect two shafts and transmit torque between them. 
• Belts and pulleys: A common power transmission element. 
• Brakes and clutches: A common power transmission element. 
• Power screws: A common power transmission element. 
• Shafts: A common power transmission element. 

Transmission fluid is a lubricant that protects a vehicle's transmission gears and clutch packs. It also enables smooth, crisp shifts.