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PHT Permanent-Magnet Hysteresis Clutch/Brake

PHT Permanent-Magnet Hysteresis Clutch/Brake

(Torque Range: 0~62in-lbs / 0~7Nm)
PHT Permanent-Magnet Hysteresis Clutch/Brake

Permanent magnet hysteresis units can be configured as a clutch or a brake depending upon mounting. Torque is accurate and dependable because it is produced magnetically, not via friction. Torque is consistent over a given speed range. Because there is no wear, units have an extremely long life. Also since units are sealed, there is no concern about contamination. Each unit has an adjustable torque range that can be set by the user and since the units operate via permanent magnets, no external controls or power is required.

Ogura Design Advantages

ACCURATE AND DEPENDABLE TORQUE

Since torque is transmitted via a hysteresis field, there is minimal difference between the static and the dynamic torque. These units are unaffected by friction and wear, therefore torque is substantially more accurate and repeatable than friction tensioners.

CONSTANT TORQUE (ADJUSTABLE)

Units can deliver set torque regardless of speed range. Each unit’s torque settings may be manually adjusted over a wide range providing great flexibility.

STABLE TORQUE

A consistent torque is maintained regardless of allowable slip speed due to the hysteresis principle.

SIMPLE INSTALLATION

Units are provided bearing mounted and pre-assembled.

LONG LIFE

There is virtually no wear because permanent magnets and hysteresis discs transmit the torque by magnetic flux without physical contact.

NO CONTAMINATION

Units are sealed to protect against contamination from equipment. There are also no wear particles from operation to contaminate equipment.

NO ELECTRICAL POWER NEEDED

The PHT series clutches and brakes operate on a permanent magnet priciple. External electrical connection is not required, therefore, units function independently from power fluctuation.

VERTICAL AND HORIZONTAL OPERATION

Units can be mounted in any axis and can be run either clockwise or counter-clockwise without affecting performance.

Models and Dimensions

Model No.Ogura P/NStatic Torque (ft-lbs)max RPMBore (inch)Volts/ WattsKeywayWgt (lbs)PICPDFDXF3D
PHT-0.02S252930000.0025100003mm shaft0/0D shaft0.13PICPDFDXF3D
PHT-0.02D253848000.002536005mm shaft0/0D shaft0.11PICPDFDXF3D
PHT-0.05S252970000.0052100003mm shaft0/0D shaft0.19PICPDFDXF3D
PHT-0.05D253881000.005236005mm shaft0/0D shaft0.12PICPDFDXF3D
PHT-0.5S252971000.04118006mm shaft0/0D shaft0.19PICPDFDXF3D
PHT-0.5D253864000.04136008mm shaft0/0D shaft0.32PICPDF3D
PHT-1.2D252951000.15018006mm0/0Set screw0.66PICPDFDXF3D
PHT-2.5D252972000.29118006mm0/0Set screw1.25PICPDFDXF3D
PHT-5D252973000.55018008mm0/03x9.4mm1.85PICPDFDXF3D
PHT-10D252974001.08180015mm0/05x17.3mm3.52PICPDFDXF3D
PHT-30D236212002.25100016mm0/05x18.3mm7.93PICPDFDXF3D
PHT-70D236223005.1670016mm0/05x18.3mm17.40PICPDFDXF3D
Only maximum torque is listed above. Check pdf file for actual torque range.