A patented article(Patent
Inside roller cutter, internal pressure could increase due to frictions
among oil gas, Bearing, and seal set and far worse, it could get
out of work by partial frictional wears of Disc Ring. The present
product attaches super bellows to a shaft to maintain a table pressure
and a detailed chart supper bellows work on any torques change to
be used by an increased internal pressure to maintain steady and
balanced level between an initial torque and ordinary torque.