crown wheel


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crown wheel

[′krau̇n ‚wēl]
(design engineering)
A gear that is light and crown-shaped.
(horology)
The horizontal escape wheel of a verge escapement timepiece.
The wheel in the winding mechanism of a watch that drives the ratchet wheel and is itself driven by the winding-stem pinion.
References in periodicals archive ?
As the crown wheel and the pinion have really different size, rotational speed and immersed surface, their temperature could be quite different too.
The steel crown wheel and worm screw transmission is lubricated with specialist oil to ensure reliable operation at low temperatures.
The axles include spur gear hub reduction, spiral bevel crown wheel and an
The Volvo compact excavator boasts a number of advances: boom offset to work alongside walls; two travel speeds; direct slewing crown wheel drive: variable-width chassis; quick change attachment bracket for speedy job changes; control pattern selector for either excavator (ISO) or backhoe (SAE) operation; a tilting counterweight that provides both optimum machine protection and easy access the engine; and simultaneous digging and high speed operations for faster cycle times.