A big encyclopedia "Details of machines and mechanisms": a detailed description of the terms of mechanical engineering, electrical engineering, shipbuilding.

Part - manufactured or subject to manufacture product, which is part of a product, machine or any technical design, made from a material homogeneous in structure and properties without the use of any assembly operations. Parts of a part that have a specific purpose are elements of a part, for example, threads, keyways, chamfers. Parts (partially or completely) are combined into nodes. Drawing the original part is called detailing.

Hydraulic drive (hydraulic drive, hydraulic transmission) - a set of devices designed to drive machines and mechanisms by means of hydraulic energy. The hydraulic drive is a kind of "insert" between the drive motor and the load (machine or mechanism) and performs the same functions as a mechanical transmission (gearbox, belt drive, crank mechanism, etc.).

Fittings is a maritime term, a generic name for certain ancillary parts of the ship's hull equipment, which are mainly used for securing and routing rigging, as well as parts of ship's arrangements, interior fittings and open decks. Practical things include staples, ducks, eyebrows, lanyards, ratchets, haws, bollards, bales, bittens, eyelets, necks, similar hatch covers, ladders, doors, portholes, railing and awning racks and others.

Flywheel (flywheel) - a massive rotating wheel used as a storage (inertial accumulator) of kinetic energy or to create an inertial moment as used on spacecraft.

Bearing - an assembly that is part of a support or stop and supporting a shaft, axle or other movable structure with a given stiffness. It fixes the position in space, provides rotation, rolling with the least resistance, perceives and transfers the load from the moving unit to other parts of the structure.

An electric motor is an electrical machine (electromechanical converter) in which electrical energy is converted into mechanical energy. The overwhelming majority of electrical machines are based on the principle of electromagnetic induction. An electrical machine consists of a fixed part - a stator (for asynchronous and synchronous AC machines), a moving part - a rotor (for asynchronous and synchronous AC machines) or an armature (for DC machines). Permanent magnets are very often used as an inductor on low-power DC motors.

Transmission (power transmission) - in mechanical engineering, all the mechanisms that connect the engine with what should move (for example, with the wheels in a car), as well as everything that ensures the operation of these mechanisms.

Electric braking (dynamic braking, dynamic brake) is a type of braking in which the braking effect is achieved by converting the kinetic and potential energy of a vehicle (train, trolleybus, etc.) into electrical energy. This type of braking is based on such a property of traction electric motors as "reversibility", that is, the possibility of their operation as generators.

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