Marine use drum type CB pneumatic clutches
Drum type CB pneumatic clutch or brake can transmit large torque in general power transmission service. There are some models of this air rubber tube clutch brake:
SH-3(3CB150), SH-4(4CB200), SH-4(4CB200), SH-6(6CB200), SH-8 (8CB250), SH-10 (10CB300), SH-12(12CB350),SH-14(14CB400), SH-16(16CB500), SH-18(18CB500), SH-20 (20CB500), SH-22(22CB500), SH-24(54CB500), SH-26(26CB525), SH-28(28CB525),SH-30 (30CB525), SH-32(32CB525),SH-36(36CB525), SH-40(40CB525), SH-45(45CB525)... They can alternative Eaton supply Airflex series constricting industrial clutches and brakes very well.
This drum style industrial clutch & brake is driven by air pressure. When pressurized, expand radially inward, forcing their friction aluminum shoes against an outer cylindrical drum surface. The power at which the tube is pressurized determines the rate at which element torque increased. Final tube pressure determines the element torque capacity, that is to say, when the air pressure larger, its transmission power is larger, too. The max air pressure is 75psi/6pa. Detail technical data of this clutches brakes as below: