Direct drive definition

Direct drive means a driving arrangement for a fan where the impeller is fixed to the motor shaft, either directly or with a co-axial coupling, and where the impeller speed is identical to the motor’s rotational speed;
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Direct drive means the type of driving arrangement where a clutch is not used and where coupling and decoupling of the driving torque is accomplished by energization and de-energization of a motor. Even though not employing a clutch, direct drives match the operational characteristics of part revolution clutches because the driving power may be disengaged during the stroke of the press.
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Examples of Direct drive in a sentence

  • Direct drive motors eliminate the need to replace belts, pulleys, or other limited life components.

  • Constructed of aluminum  Aerial PTO with Aerial Master Switch to control the aerials and the electrical system  H-style hydraulic stabilizers  Sufficient lighting around the aerial platform  Direct drive (PTO) portable generator  Tower lights installed to sufficiently light up the working area  Side mounted (drivers side) pump control panel  1500 gpm single stage fire pump  300 gallon polypropylene water tank  125 cu.

  • The present supply chain of a number of main components is not capable of producing the required size: • Pitch bearing • Direct drive generator or advanced gearbox technology allowing an economic design at required scale.

  • Deliverable D8.4 11 Transmission /Generator /Controller - Located at base of support structure, lowering centre of gravity (increasing stability) - Direct drive (no gearbox), reduction in number of components and probability of failure, lower O&M.

Related to Direct drive

  • Direct care means direct, hands-on personal care and supervi- sion to group care children and youth.

  • Residential care means the provision of care on a 24-hour day basis.

  • Center means the center for educational performance and information created in section 94a.

  • Project Name means the name of the project stated in SCC.

  • Youth center means any public or private facility that is primarily used to host recreational or social activities for minors, including, but not limited to, private youth membership organizations or clubs, social service teenage club facilities, video arcades, or similar amusement park facilities.