"The LS bell hammer can be used for multiple purposes (almighty) and can be widely covered as an additive for passenger cars, reduction gears, generators, compressors, etc.
Bell Hammer Seven has a strong element of quieting engine noise and mitigating vibration.
The bell hammer light has a better response (pickup), and even if you step on the accelerator lightly, you will feel a strong sense of acceleration.
All three types can be used for passenger cars and light vehicles, and the feelings are significantly different."