China OEM Worm Shaft Reducer Wp Series Reduction Gearbox for Marine Equipment with high quality

Solution Description

HC-sequence marine gearbox self-created by the company is of energy ranging 10kW~3000kW, ratio ranging 1.5~twenty:1, total in specs, large market place share, widely utilized in hefty loaded ships this sort of as transport, fishing and engineering boats. Solution design and style and manufacturing functionality are in leading nationally and superior internationally amount.

Item Description

HangZhou Progress 120C Gearbox


HangZhou Advance makes the greatest gearbox in China.

The 120C marine gearbox has the function of deceleration, reversing, clutching and bearing propeller thrust with compact framework, little volume, gentle fat and large pace, it can be matched with large pace motor to sort maritime electricity device, amid which the enter and output angle of HCV120 gearbox is 7° on the identical side.

The 120C maritime gearboxe is mostly used in small and medium-sized higher-speed ships this sort of as yachts, site visitors boats, passenger ships and enterprise ships.


Solution Parameters

Item Configuration

Customize YOUR Device

Oil Strain Gauge and Alarm Gadget

Oil Temperature Gauge and Alarm Device

SAE Flywheel Housing Alternatives

Hydraulic Stress Lower Alarm

Solenoid Managed Swap



Contact US FOR Much more Information YOU Need to have!




Production procedure


Company Profile


HangZhou LionHeart Power Products Co., Ltd., a subsidiary of 1 of the nation’s prime maritime companies company —- HangZhou Agricultural Machinery Co., Ltd., is a service provider of marine gear throughout the world. Our organization is fully commited to supplying the best answer to our customer’s task considering that 1996. With more than twenty a long time of profound expertise in the maritime solutions business, our business has established up a professional and consumer-pleasant program in our every pre-product sales, shipping and delivery and right after-sales method to ensure your worry-cost-free searching expertise. We ship our brand-new items all in excess of the planet, at the greatest charges on the Net.

LionHeart Electrical power is a specialist provider for equipment like marine engines, generators, gearboxes, propellers, marine interior fit-out, deck equipment and connected marine spare components. Our processes and techniques are made to present the excellent item that will satisfy or exceed the expectations of every 1 of our buyers. We again up that dedication with comprehensive services by means of the product’s whole lifestyle cycle, along with our important systems and top item knowledge. That is the purpose why we stand out as the nation’s maritime gear sales winner of a number of brands for over ten consecutive many years.

LionHeart Energy carries 1 of the nation’s biggest inventories of maritime tools and associated parts from 20+ manufacturers this sort of as Weichai, HangZhou Advance, Deutz, Steyr, Zichai, CZPT and much more, amid which the CZPT and Progress sequence are completely coated. Especially, that inventory is meticulously structured more than fifty seven acres outside the house and 118, 000 sq. FT. Of warehouse beneath roof. That implies our merchandise are normally in inventory for instant availability. Besides, we are CZPT of our useful resource plHangZhou system of products, which is unparalleled in the industry, offering you the shortest lead time and productive service.

LionHeart Power’s employees is expertly qualified not only to quickly find the products you’re looking for, but also to meet up with your project demands with the ideal remedy. If what you are searching for is not ‘on the shelf’, we will personalize it for you. This toughness builds on our solid partnership with a variety of companies and production institutes. Performance and service are the ambitions of every member of our group. LionHeart Electrical power knows your time is valuable and we create this price for you. Quality equipment and expertly-trained service experts, blended with our in depth stock, give you the edge in your professional and industrial achievement.

Packaging & Transport




Orders are generally packed and completely ready to ship in 1 to 3 company times if the items are in stock.  However shipments are subiect to needed manufacturing time and customs clearance methods. which can lead to delays CZPT authentic shipping and delivery estimates. For thorough delivery details, make sure you make contact with customer provider. 
two.Packing Methods
Generally we use picket packing containers for packaging or we can pack it in accordance to your special wants. 
3.Transport Methods
We are happy to offer a selection of delivery techniques. Shipping approaches obtainable: EXW. FOB.CER. CIF.
4. International Returns & Exchanges
However we can not take retums on intemational orders. We will examination each solution prior to dellverv One-calendar year producer warranty is quaranteed on our comprehensive devices and 3 months on spare areas. I1 you have any worries with your get, remember to get to out to client service
5.Payment Techniques
We sugqest fifty/fifty T/T payment strategy: 50 per cent down payment on placement of the purchase, with the remaining fifty% owing on shipment. We also acknowledge L/C, Trade Assurance, Visa transfer and Paypal 


How to Establish the High quality of a Worm Shaft

There are several benefits of a worm shaft. It is easier to manufacture, as it does not require guide straightening. Among these advantages are relieve of upkeep, diminished cost, and ease of set up. In addition, this variety of shaft is a lot significantly less prone to harm owing to guide straightening. This write-up will talk about the diverse variables that determine the top quality of a worm shaft. It also discusses the Dedendum, Root diameter, and Put on load ability.
worm shaft

Root diameter

There are various alternatives when picking worm gearing. The variety depends on the transmission utilised and creation possibilities. The standard profile parameters of worm gearing are described in the professional and agency literature and are used in geometry calculations. The chosen variant is then transferred to the main calculation. Nevertheless, you must just take into account the strength parameters and the equipment ratios for the calculation to be correct. Listed here are some tips to choose the appropriate worm gearing.
The root diameter of a worm gear is calculated from the heart of its pitch. Its pitch diameter is a standardized price that is established from its force angle at the level of zero gearing correction. The worm gear pitch diameter is calculated by including the worm’s dimension to the nominal middle distance. When defining the worm equipment pitch, you have to preserve in mind that the root diameter of the worm shaft need to be smaller than the pitch diameter.
Worm gearing needs teeth to evenly distribute the dress in. For this, the tooth aspect of the worm should be convex in the standard and centre-line sections. The shape of the teeth, referred to as the evolvent profile, resembles a helical gear. Typically, the root diameter of a worm equipment is a lot more than a quarter inch. Nonetheless, a 50 %-inch big difference is acceptable.
Another way to estimate the gearing performance of a worm shaft is by searching at the worm’s sacrificial wheel. A sacrificial wheel is softer than the worm, so most use and tear will arise on the wheel. Oil analysis studies of worm gearing units practically always display a substantial copper and iron ratio, suggesting that the worm’s gearing is ineffective.


The dedendum of a worm shaft refers to the radial size of its tooth. The pitch diameter and the minor diameter determine the dedendum. In an imperial system, the pitch diameter is referred to as the diametral pitch. Other parameters incorporate the face width and fillet radius. Confront width describes the width of the gear wheel with out hub projections. Fillet radius actions the radius on the idea of the cutter and forms a trochoidal curve.
The diameter of a hub is measured at its outer diameter, and its projection is the distance the hub extends past the equipment confront. There are two types of addendum enamel, one with brief-addendum enamel and the other with long-addendum teeth. The gears by themselves have a keyway (a groove machined into the shaft and bore). A important is equipped into the keyway, which suits into the shaft.
Worm gears transmit motion from two shafts that are not parallel, and have a line-toothed style. The pitch circle has two or much more arcs, and the worm and sprocket are supported by anti-friction roller bearings. Worm gears have substantial friction and wear on the tooth teeth and restraining surfaces. If you would like to know much more about worm gears, consider a appear at the definitions underneath.
worm shaft

CZPT’s whirling approach

Whirling procedure is a present day production technique that is changing thread milling and hobbing processes. It has been capable to decrease production costs and direct times whilst creating precision gear worms. In addition, it has decreased the require for thread grinding and surface area roughness. It also decreases thread rolling. Here’s much more on how CZPT whirling method functions.
The whirling process on the worm shaft can be employed for making a range of screw kinds and worms. They can create screw shafts with outer diameters of up to 2.5 inches. In contrast to other whirling processes, the worm shaft is sacrificial, and the procedure does not require machining. A vortex tube is utilised to supply chilled compressed air to the chopping position. If needed, oil is also additional to the combine.
Yet another method for hardening a worm shaft is called induction hardening. The approach is a large-frequency electrical procedure that induces eddy currents in metallic objects. The higher the frequency, the far more area heat it generates. With induction heating, you can system the heating procedure to harden only particular regions of the worm shaft. The size of the worm shaft is typically shortened.
Worm gears supply several benefits above common equipment sets. If utilized correctly, they are reputable and extremely productive. By following suitable setup tips and lubrication recommendations, worm gears can produce the same reputable services as any other type of equipment established. The write-up by Ray Thibault, a mechanical engineer at the University of Virginia, is an exceptional manual to lubrication on worm gears.

Wear load ability

The wear load ability of a worm shaft is a important parameter when determining the performance of a gearbox. Worms can be made with diverse equipment ratios, and the style of the worm shaft need to mirror this. To establish the wear load capability of a worm, you can check its geometry. Worms are normally created with teeth ranging from one particular to 4 and up to twelve. Selecting the correct amount of teeth depends on a number of aspects, including the optimisation needs, this sort of as efficiency, fat, and centre-line length.
Worm equipment tooth forces increase with improved energy density, triggering the worm shaft to deflect a lot more. This lowers its use load potential, lowers efficiency, and boosts NVH conduct. Advancements in lubricants and bronze resources, merged with much better manufacturing high quality, have enabled the continuous boost in energy density. Individuals a few factors mixed will establish the dress in load capability of your worm gear. It is essential to consider all three variables prior to deciding on the right equipment tooth profile.
The minimum number of equipment enamel in a gear depends on the stress angle at zero gearing correction. The worm diameter d1 is arbitrary and depends on a identified module benefit, mx or mn. Worms and gears with various ratios can be interchanged. An involute helicoid assures correct make contact with and condition, and provides larger accuracy and life. The involute helicoid worm is also a important ingredient of a equipment.
Worm gears are a kind of ancient gear. A cylindrical worm engages with a toothed wheel to lessen rotational speed. Worm gears are also utilized as key movers. If you’re seeking for a gearbox, it might be a good alternative. If you happen to be considering a worm equipment, be positive to verify its load capacity and lubrication demands.
worm shaft

NVH behavior

The NVH actions of a worm shaft is established using the finite aspect technique. The simulation parameters are defined making use of the finite factor strategy and experimental worm shafts are when compared to the simulation outcomes. The benefits show that a big deviation exists in between the simulated and experimental values. In addition, the bending stiffness of the worm shaft is very dependent on the geometry of the worm gear toothings. That’s why, an ample style for a worm equipment toothing can aid reduce the NVH (sound-vibration) conduct of the worm shaft.
To estimate the worm shaft’s NVH habits, the principal axes of instant of inertia are the diameter of the worm and the variety of threads. This will influence the angle in between the worm enamel and the effective distance of every single tooth. The length amongst the primary axes of the worm shaft and the worm equipment is the analytical equivalent bending diameter. The diameter of the worm gear is referred to as its powerful diameter.
The elevated electricity density of a worm gear benefits in improved forces acting on the corresponding worm gear tooth. This leads to a corresponding increase in deflection of the worm equipment, which negatively affects its efficiency and put on load potential. In addition, the increasing electricity density demands improved production top quality. The constant advancement in bronze supplies and lubricants has also facilitated the continued increase in power density.
The toothing of the worm gears establishes the worm shaft deflection. The bending stiffness of the worm gear toothing is also calculated by employing a tooth-dependent bending stiffness. The deflection is then converted into a stiffness benefit by employing the stiffness of the personal sections of the worm shaft. As proven in figure 5, a transverse section of a two-threaded worm is revealed in the determine.

China OEM Worm Shaft Reducer Wp Series Reduction Gearbox for Marine Equipment     with high qualityChina OEM Worm Shaft Reducer Wp Series Reduction Gearbox for Marine Equipment     with high quality