Which tool is commonly used to check the tension in a V-belt?

The belt tension gauge is specifically designed to measure the tension in a V-belt accurately. This tool is essential because proper belt tension is crucial for optimal performance and longevity of the drive system. A belt that is too loose may slip, causing insufficient power transfer and potential damage, while a belt that is too tight can lead to excessive wear on the bearings and other components.

A torque wrench, while useful for measuring the torque on a bolt, does not provide information regarding belt tension. Similarly, a pressure gauge is used to measure fluid pressure in a system, and an infrared thermometer is designed for non-contact temperature readings. Neither of these tools is capable of assessing the tension of a V-belt. Thus, the belt tension gauge stands out as the appropriate tool for this specific task.