Wholewin YK7 Motor Boat Steering Helm, View marine helm, Wholewin Product Details from Yongkang Wholewin Control Cable Co., Ltd. All the components of Ultraflex hydraulic steering systems are made specifically for the marine environment, using materials and working process which offer long life and safety for the most extreme conditions. A hydraulic steering system consists of a steering pump, a cylinder tied to the rudder or to the outboard or sterndrive engine and the connecting nylon or copper tubing. Under normal operating conditions, a turn of the steering wheel will send the oil from the helm unit into one of the two connecting hydraulic lines.
The oil will be pumped into one of the chambers of the cylinder and either extend or retract the cylinder rod, depending on the steering wheel rotation.
The fluid going out from the other chamber of the cylinder is returned to the helm via the other hydraulic line.


There are two basic components in all the hydraulic steering systems: the helm unit and the cylinder, connected by nylon or copper tubing. The cylinders are double acting and may be balanced or unbalanced, (in which case the rod extends through only one end of the cylinder).
The strength required to drive a boat equipped with a hydraulic steering system is inversely proportional to the number of turns of the wheel lock-to-lock. With the same type of cylinder installed on the engine, the less are the turns, the faster is the response but higher is the effort; more wheel turns, slower is the response and lower is the effort. Made in zinc alloy, corrosion resistant, ergonomically designed, easy to install, compact for mounting.
Various optional steering wheel, steering wheel of 3 sizes: diameter 300mm, 330mm, 350mm available.


If you require further details regarding the transaction data, please contact the supplier directly.
The wheel turns are determinated by the ratio between the cylinder volume, pump displacement and the free movement of the rudder.
Made in zinc alloy, corrosion resistant, ergonomically designed, easy to install, compact for mounting.4. Combined with steering cable series 160, end C, all stainless steel cable output ends, can be any length within 8 METERS5.



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