Balance test tool and balance test system

The utility model relates to a balance test tool and a balance test system, in the balance test process, a component to be tested is installed on a test shaft; the two opposite ends of the test shaft are arranged in the mounting grooves in the two sides, so that the to-be-tested part stably rotates between the first seat body and the second seat body; then, a liquid supply station is started, lubricating liquid is provided for the test shaft and/or the mounting groove, so that a lubricating film is formed between the test shaft and the groove wall of the mounting groove, and the friction force between the test shaft and the mounting groove is reduced to be almost zero. According to the balance test tool, the lubricating film is used as a rotating medium, the sliding friction force between parts is reduced, and the reliability of a balance test result is effectively improved. Besides, compared with a traditional tool, the balance test tool does not need to use structures such as analog digital electric equipme