Left: K
Right: CMY
The following points are the differences between K and CMY.
K  | CMY  | |
|---|---|---|
Lubricant [B] quantity  | K > CMY  | |
Lubricating method  | Arm [A]  | Pressure spring [C]  | 
Silencer [D]  | Available  | Available  | 
The silencer [D] is an internal layer of the drum, added to reduce sound during rotation.