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In a direct-drive turntable the motor is located directly under the center of the platter and is connected to the platter directly. It is a significant advancement over older belt-drive turntables for turntablism, since they have a slower start-up time and torque, and are prone to wear-and-tear and breakage, [5] as the belt would break from backspinning or scratching. [6]
The functional relationship between the drive belt, sub-platter, and motor pulley, can be seen through the glass platter on a Rega Planar 3.. There are three main types of phonograph turntable drives being manufactured today: the belt-drive, idler-wheel and direct-drive systems; the names are based upon the type of coupling used between the platter of the turntable and the motor.
Serpentine belt (foreground) and dual vee belt (background) on a bus engine Belt tensioner providing pressure against the back of a serpentine belt in an automobile engine. A serpentine belt (or drive belt [1]) is a single, continuous belt used to drive multiple peripheral devices in an automotive engine, such as an alternator, power steering pump, water pump, air conditioning compressor, air ...
Early belt-drive turntables were unsuitable for turntablism, since they had a slow start-up time, and they were prone to wear-and-tear and breakage, [9] as the belt would break from backspinning or scratching. [10] The first direct-drive turntable was invented by Shuichi Obata, an engineer at Matsushita (now Panasonic), [11] based in Osaka ...
The open belt drive has parallel shafts rotating in the same direction, whereas the cross-belt drive also bears parallel shafts but rotate in opposite direction. The former is far more common, and the latter not appropriate for timing and standard V-belts unless there is a twist between each pulley so that the pulleys only contact the same belt ...
The drive system designed by Matsushita is direct-drive rather than the more commonly found belt-drive type, a less expensive design. The direct-drive design, which was developed to reduce wow and flutter, produces a very quiet turntable that, for a direct-drive turntable, has minimal motor and bearing noise, (although the bearing rumble does ...
A trade group has asked the incoming Trump administration to consider a "comprehensive plan" for updating the U.S. Securities and Exchange Commission's regulatory framework for investment ...
Air compressor supplies air into a nail gun.. An air compressor is a machine that takes ambient air from the surroundings and discharges it at a higher pressure. It is an application of a gas compressor and a pneumatic device that converts mechanical power (from an electric motor, diesel or gasoline engine, etc.) into potential energy stored in compressed air, which has many uses.
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