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An idler-wheel may be used as part of a friction drive mechanism. For example, to connect a metal motor shaft to a metal platter without gear noise, early phonographs used a rubber idler wheel. Likewise, the pinch roller in a magnetic tape transport is a type of idler wheel, which presses against the driven capstan to increase friction.
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.
A non-powered wheel, an idler, is placed at the opposite end of the track, primarily to tension the track, since loose track could be easily thrown (slipped) off the wheels. To prevent throwing, the inner surface of the track links usually have vertical guide horns engaging grooves, or gaps between the doubled road and idler/sprocket wheels.
Chain drive was the main feature which differentiated the safety bicycle introduced in 1885, with its two equal-sized wheels, from the direct-drive penny-farthing or "high wheeler" type of bicycle. The popularity of the chain-driven safety bicycle brought about the demise of the penny-farthing, and is still a basic feature of bicycle design today.
Idler refers to someone or something idle: An idle game; A slacker, a person who habitually avoids work; Idler-wheel, a system used to transmit the rotation of the main shaft of a motor to another rotating device; Idler circuit, a circuit in a parametric amplifier to generate an idle response; Idler or The Idler may also refer to:
There are presently three main phonograph designs: belt-drive, direct-drive, and idler-wheel. In a belt-drive turntable the motor is located off-center from the platter, either underneath it or entirely outside of it, and is connected to the platter or counter-platter by a drive belt made from elastomeric material.
The ‘930’ is a large machine as well (49×39×17.5 centimeters), that maintains all the functional characteristics of the larger brother in a more compact package. Its very sturdy cast-metal frame, ‘Kunststoff’ main board and idler-wheel drive to the internal rim of its heavy platter gives it peerless sonic qualities. The drive system ...
extremely quiet (e.g. business or nightlife) (dismissive usage) boring dead beat, deadbeat exhausted (slang) (US: dead tired) an idler; someone who does not pay their debts, often in construction ("deadbeat dad") (slang) DC Detective Constable, a police officer who works in or with a branch of CID. direct current (see also other expansions)