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Electromagnetic Clutches | Tooth Type

Supplier: Keith Price Machine Tools

Electromagnetic Clutches, Tooth Types are sometimes known as serrated tooth clutches.

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Electromagnetic  Clutches | Tooth Type

Used in applications where extreme torque is required such as feed mechanisms, & on some CNC machines within the turret tool changer system. These units are manufactured in a range of torques from 20 Nm to 100000 Nm.

These Tooth clutches can be operated in both ''wet & dry'' applications, the construction comprising of a potted coil creating a magnetic flux when power activated. Engagement is via a nitride steel tooth ring and a similar material manufactured armature disc. Springs are often used to ensure that 2 tooth components are kept apart when the clutch is de- energized. Most of these clutches operated on 24 Volt DC power, but on application can be supplied on other options.

They are available in Slipring or Non Slipring types

A point of good practice is to ensure that no speed differential should be evident while the tooth clutch is being engaged, except where there are torsionally flexible elements on the input and output drives. In which case slight speed differential is permitted.

The tooth profile is available in many configurations, such as ''saw tooth clockwise'', ''saw tooth anti clockwise'', ''overload tooth form'', ''spaced tooth form'', ''Stepped tooth clockwise'', ''stepped tooth anti clockwise'' & ''self locking'' these can be discussed on application, however the most common types found in machine tool applications are the ''standard'' or ''standard backlash free''

Depending on the clutch type required, they are available with a vast array of bore sizes and types from plain bore to spline bore in Slipring models, and face mounting holes in non slipring models.

These special clutches are used in very large milling machines, lathes and boring mills such as Asqith Floor Borers, Makino CNC Machining Centers, Poreba Lathes & Sachman Bed Mills etc.

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