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traction
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Anchor BoltsBolt designed to fasten rail brackets, door sills, headers or other ... BedplateA steel or cast-iron platform on which a machine is placed Blocking BeamsSteel placed on machine beams to raise the level of machine room e... BrakeA spring-loaded clamping device that prevents the elevator from moving when... Brake DrumA round, machined surface on the motor shaft which the brake clams for... Cable WrapThe amount of the drive sheave actually in contact with the cable. CablesRopes, usually 4 to 6 in number, used to support the car. Ropes pass over... CompensationUsing ropes, chain or other design to counterbalance transfer of hoi... ControllerAn electrical panel which performs many computer functions by which it... CounterweightAdded weight on traction elevators which counterbalances the weight... Double-wrappedRoping arrangement on gearless traction elevators, where the hoist... Drive MachineThe power unit which applies the energy necessary to raise and lowe... Emergency BrakeMounted on the drive step chain sprocket shaft and arranged to op... Gear - RingA large gear driven by the worm gear which is attached to the drive s... Gear - WormA spiral gear connected to and driven by the motor and which drives t... GovernorThe governor is a mechanical speed control mechanism. The governor monit... Governor RopeWire rope with at least one end fastened to the safety activating m... Hitch PlateA plate (on traction elevators) clamped to the underside of the cross... Machine – GearedGeared Traction machines for elevators of 500 fpm of less in whi... Machine BeamsHorizontal steel beams that support the elevator driving machine of... Machine RoomA room where traction machines or hydraulic power units for elevator... OverheadThe upper portion of the elevator hoistway. Overhead is determined by t... Overhead MachineStandard machine room location on a traction elevator, the machi... PenthouseThe machine room above the hoistway on traction elevators. Ropes (Hoist)For traction elevators, a strong cord of twisted fibers such as ste... SafetyDevice on the car or counterweight that will stop the car or counterweight... Safety HousingA large clamp that anchors the car to the building to keep the ele... Safety PlankThe bottom member of a sling for a traction elevator which contains ... ShackleThreaded rods to which the hoist cables are socketed and which bolt to th... SheaveWheel that is mounting in bearings and having one or more grooves over whi... Sheave – DriveThe grooved wheel of a traction machine over which hoist ropes are... Structural SlabA reinforced concrete slab that support the elevator driving mach... TorqueThe pulling effort developed by the motor TractionOne of two methods by which an elevator is moved, whereby the elevator i... U-shaped GrooveA groove in the drive sheave which produces no pinching or wedgin... V-shaped GrooveA groove in the drive sheave which produces a pinching or wedging... Freight Elevator The elevator designed and used for carrying material rather tha... Rail Module The rail module contains the guide rails (typically 16 feet long).Co... Machine ModuleA traction machine is used on all traction elevator equipment type... Governor Module The governor, which is located in the machine room or overhead d... Entrance ModuleEntrance: The framework for the opening is called the entrance a... Cab ModuleCab Module: The cab module may be either a passenger or freight type. ... Fixture ModuleFixture Module: The car operating panel and hall push buttons all... Geared MachineTraction = A traction elevator configuration uses ropes (cables) t... GovernorThe governor is a mechanical speed control mechanism. The governor monit... Safeties Safeties The purpose of the safeties is to stop and hold the car if the...