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China Custom Trailer Landing Gear for Semi Trailer Parts 28t Landing Gear Trailer Jack bevel gearbox

Product Description

WONDEE Landing gear:

WONDEE landing gear factory was founded in 2003 , to meet market demand better, we keep improving quality management and  successfully certified with ISO9001 quality control system in 2005. 

Further more, We built strong technical force with 8 engineers for this project, they serve for product upgrading and development. 

By the reason of quick Development since 2571, factory current year output is able to reach 60,000 pairs and we offer each of them with one-year warranty service.

 

One-side operation, gearbox outside, common mounting plate, with T-foot:

Item No. Capacity Static Load Lifting Speed Lifting Travel Mounting Height Weight Foot Type
High Low
(kg) (kg) (mm/r) (mm/r) (mm) (mm) (kg)
LGH28-A5711T 28000 80000 5.4 0.71 430 794 96 T
LGH28-A5712T 28000 80000 5.4 0.71 480 844 96 T

 

Remark:  T-type/A-type/S-type/R-type landing gear feet are optional according to requirements.

 

 

 

One-side operation, gearbox outside, long mounting plate, with T-foot:

Item No. Capacity Static Load Lifting Speed Lifting Travel Mounting Height Weight Foot Type
High Low
(kg) (kg) (mm/r) (mm/r) (mm) (mm) (kg)
LGH28-B5711T 28000 80000 5.4 0.71 430 794 98 T
LGH28-B5712T 28000 80000 5.4 0.71 480 844 98 T
LGH32-B5711T 32000 90000 5.4 0.71 430 794 105 T
LGH32-B5712T 32000 90000 5.4 0.71 480 844 105 T

 

Remark:  T-type/A-type/S-type/R-type landing gear feet are optional according to requirements.

 

One-side operation, gearbox inside, common mounting plate, with T-foot:

Item No. Capacity Static Load Lifting Speed Lifting Travel Mounting Height Weight Foot Type
High Low
(kg) (kg) (mm/r) (mm/r) (mm) (mm) (kg)
LGN24-A5711T 25000 60000 5.4 0.71 430 830 90 T
LGN24-A5712T 25000 60000 5.4 0.71 480 880 90 T
LGN28-A5711T 28000 80000 5.4 0.71 430 830 96 T
LGN28-A5712T 28000 80000 5.4 0.71 480 880 96 T

 

Remark: T-type/A-type/S-type/R-type landing gear feet are optional according to requirements.

 

 

One-side operation, gearbox inside, long mounting plate, with T-foot:

Item No. Capacity Static Load Lifting Speed Lifting Travel Mounting Height Weight Foot Type
High Low
(kg) (kg) (mm/r) (mm/r) (mm) (mm) (kg)
LGN28-B5711T 28000 80000 5.4 0.71 430 780 96 T
LGN28-B5712T 28000 80000 5.4 0.71 480 830 96 T

 

Remark: T-type/A-type/S-type/R-type landing gear feet are optional according to requirements.

 

 

 

JOST type, One-side operation, gearbox outside, long mounting plate, with T-foot:

Item No. Capacity Static Load Lifting Speed Lifting Travel Mounting Height Weight Foot Type
High Low
(kg) (kg) (mm/r) (mm/r) (mm) (mm) (kg)
LGJ28-B5711T 28000 80000 9 0.9 430 803 100 T
LGJ28-B5712T 28000 80000 9 0.9 480 853 100 T

 

Remark: T-type/A-type/S-type/R-type landing gear feet are optional according to requirements.

 

 

 

JOST type, One-side operation, gearbox outside, long mounting plate, with S-foot:

Item No. Capacity Static Load Lifting Speed Lifting Travel Mounting Height Weight Foot Type
High Low
(kg) (kg) (mm/r) (mm/r) (mm) (mm) (kg)
LGJ28-B5711S 28000 80000 9 0.9 430 843 110 S
LGJ28-B5712S 28000 80000 9 0.9 480 893 110 S

 

Remark: T-type/A-type/S-type/R-type landing gear feet are optional according to requirements.

 

JOST type, One-side operation, gearbox outside, long mounting plate, with T-foot:

Item No. Capacity Static Load Lifting Speed Lifting Travel Mounting Height Weight Foot Type
High Low
(kg) (kg) (mm/r) (mm/r) (mm) (mm) (kg)
LGZ28-B5711T 28000 80000 9 0.9 430 803 102 T
LGZ28-B5712T 28000 80000 9 0.9 480 853 102 T

 

Remark: T-type/A-type/S-type/R-type landing gear feet are optional according to requirements.

 

JOST type, One-side operation, gearbox outside, long mounting plate, with S-foot:

Item No. Capacity Static Load Lifting Speed Lifting Travel Mounting Height Weight Foot Type
High Low
(kg) (kg) (mm/r) (mm/r) (mm) (mm) (kg)
LGZ28-B5711S 28000 80000 9 0.9 430 803 102 S
LGZ28-B5712S 28000 80000 9 0.9 480 853 102 S

 

Remark: T-type/A-type/S-type/R-type landing gear feet are optional according to requirements.

 

JOST type, One-side operation, gearbox outside, long mounting plate, with T-foot:

 

Item No. Capacity Static Load Lifting Speed Lifting Travel Mounting Height Weight Foot Type
High Low
(kg) (kg) (mm/r) (mm/r) (mm) (mm) (kg)
LGJ24-B5711T 24000 50000 9 0.9 430 803 92 T
LGJ24-B5712T 24000 50000 9 0.9 480 853 92 T

 

Remark: T-type/A-type/S-type/R-type landing gear feet are optional according to requirements.

 

Remark:

Other classification of landin gears are available, include Jost type landing gears, Holland type landing gears, BPW types landing gears, Brazilian types landing gears etc.

WONDEE Landing gear QC(Quality control):

Quality is our life. We create our quality system from external requirement and internal improvement.

All landing gears are produced under ISO9001 system and our QC make 100% quality checking for each pair. Further more, our quality inspection is strictly followed by the standard of USA AAR and we are the leader to pass the standard among Chinese suppliers.

On the other hand, our landing gear passed profession lab test include wear-resisting, lifting, static loading and lateral force-resisting etc.

Each CZPT people play important role for quality guarantee and we are proud to the defective rate is less than 0.1%.

WONDEE Landing gear Production Process :


Material Preparing-Cutting-Hole Drilling-Welding-Forming-Painting -Assembling-Packing

WONDEE Landing gear factory facts:

Wondee factory has 15 Years producing experience for landing gear and we keep our focus on exporting market.With steady growth these years, we successfully build long term partner relationship with more than 54 customers all around the world. Besides, we are appointed supplier for CZPT more than 12 years, also serve some trade company in China.
To meet growth demand, we built new workshop and warehouse with 20,000 M2, introduced and upgrade machines more than 100 sets.
Currently, we are able to produce 90% component by ourself and year capacity reach 60,000 pairs.
Further more, we are proactive to improve environmentally friendly equipments to meet government demand and get allowance for long term production then.

Besides Landing gear , WONDEE also Supply trailer parts as below:
 

Semi-trailers:       
Skeletal semi-trailers flatbed semi-trailers container semi-trailers low bed semi-trailers
van semi-trailers fuel tank semi-trailers logging semi-trailers Fence Semi trailers
Spare Parts:      
Leaf spring, flat bar, Chassis, H-beam
Air suspension, mechanic suspension, bogie Coupling,
Axle  air chamber, slack adjuster hitch. 
Brake drum brake shoe brake lining wheel hub
tubeless wheel rims, tube wheel rims, Aluminum wheel rim wheel bolt
u bolt center bolt hub bolt twist lock,
Turntable, 5th wheel,  landing gear, king pin,

After-sales Service: Yes
Warranty: 1 Year
Type: Landing Gear
Certification: ISO/TS16949
Loading Weight: 25T
ABS: Without ABS

Gear

Synthesis of Epicyclic Gear Trains for Automotive Automatic Transmissions

In this article, we will discuss the synthesis of epicyclic gear trains for automotive automatic transmissions, their applications, and cost. After you have finished reading, you may want to do some research on the technology yourself. Here are some links to further reading on this topic. They also include an application in hybrid vehicle transmissions. Let’s look at the basic concepts of epicyclic gear trains. They are highly efficient and are a promising alternative to conventional gearing systems.

Synthesis of epicyclic gear trains for automotive automatic transmissions

The main purpose of automotive automatic transmissions is to maintain engine-drive wheel balance. The kinematic structure of epicyclic gear trains (EGTs) is derived from graph representations of these gear trains. The synthesis process is based on an algorithm that generates admissible epicyclic gear trains with up to ten links. This algorithm enables designers to design auto gear trains that have higher performance and better engine-drive wheel balance.
In this paper, we present a MATLAB optimization technique for determining the gear ratios of epicyclic transmission mechanisms. We also enumerate the number of teeth for all gears. Then, we estimate the overall velocity ratios of the obtained EGTs. Then, we analyze the feasibility of the proposed epicyclic gear trains for automotive automatic transmissions by comparing their structural characteristics.
A six-link epicyclic gear train is depicted in the following functional diagram. Each link is represented by a double-bicolor graph. The numbers on the graph represent the corresponding links. Each link has multiple joints. This makes it possible for a user to generate different configurations for each EGT. The numbers on the different graphs have different meanings, and the same applies to the double-bicolor figure.
In the next chapter of this article, we discuss the synthesis of epicyclic gear trains for automotive automatic transaxles. SAE International is an international organization of engineers and technical experts with core competencies in aerospace and automotive. Its charitable arm, the SAE Foundation, supports many programs and initiatives. These include the Collegiate Design Series and A World In Motion(r) and the SAE Foundation’s A World in Motion(r) award.
Gear

Applications

The epicyclic gear system is a type of planetary gear train. It can achieve a great speed reduction in a small space. In cars, epicyclic gear trains are often used for the automatic transmission. These gear trains are also useful in hoists and pulley blocks. They have many applications in both mechanical and electrical engineering. They can be used for high-speed transmission and require less space than other types of gear trains.
The advantages of an epicyclic gear train include its compact structure, low weight, and high power density. However, they are not without disadvantages. Gear losses in epicyclic gear trains are a result of friction between gear tooth surfaces, churning of lubricating oil, and the friction between shaft support bearings and sprockets. This loss of power is called latent power, and previous research has demonstrated that this loss is tremendous.
The epicyclic gear train is commonly used for high-speed transmissions, but it also has a small footprint and is suitable for a variety of applications. It is used as differential gears in speed frames, to drive bobbins, and for the Roper positive let-off in looms. In addition, it is easy to fabricate, making it an excellent choice for a variety of industrial settings.
Another example of an epicyclic gear train is the planetary gear train. It consists of two gears with a ring in the middle and the sun gear in the outer ring. Each gear is mounted so that its center rotates around the ring of the other gear. The planet gear and sun gear are designed so that their pitch circles do not slip and are in sync. The planet gear has a point on the pitch circle that traces the epicycloid curve.
This gear system also offers a lower MTTR than other types of planetary gears. The main disadvantage of these gear sets is the large number of bearings they need to run. Moreover, planetary gears are more maintenance-intensive than parallel shaft gears. This makes them more difficult to monitor and repair. The MTTR is also lower compared to parallel shaft gears. They can also be a little off on their axis, causing them to misalign or lose their efficiency.
Another example of an epicyclic gear train is the differential gear box of an automobile. These gears are used in wrist watches, lathe machines, and automotives to transmit power. In addition, they are used in many other applications, including in aircrafts. They are quiet and durable, making them an excellent choice for many applications. They are used in transmission, textile machines, and even aerospace. A pitch point is the path between two teeth in a gear set. The axial pitch of one gear can be increased by increasing its base circle.
An epicyclic gear is also known as an involute gear. The number of teeth in each gear determines its rate of rotation. A 24-tooth sun gear produces an N-tooth planet gear with a ratio of 3/2. A 24-tooth sun gear equals a -3/2 planet gear ratio. Consequently, the epicyclic gear system provides high torque for driving wheels. However, this gear train is not widely used in vehicles.
Gear

Cost

The cost of epicyclic gearing is lower when they are tooled rather than manufactured on a normal N/C milling machine. The epicyclic carriers should be manufactured in a casting and tooled using a single-purpose machine that has multiple cutters to cut the material simultaneously. This approach is widely used for industrial applications and is particularly useful in the automotive sector. The benefits of a well-made epicyclic gear transmission are numerous.
An example of this is the planetary arrangement where the planets orbit the sun while rotating on its shaft. The resulting speed of each gear depends on the number of teeth and the speed of the carrier. Epicyclic gears can be tricky to calculate relative speeds, as they must figure out the relative speed of the sun and the planet. The fixed sun is not at zero RPM at mesh, so the relative speed must be calculated.
In order to determine the mesh power transmission, epicyclic gears must be designed to be able to “float.” If the tangential load is too low, there will be less load sharing. An epicyclic gear must be able to allow “float.” It should also allow for some tangential load and pitch-line velocities. The higher these factors, the more efficient the gear set will be.
An epicyclic gear train consists of two or more spur gears placed circumferentially. These gears are arranged so that the planet gear rolls inside the pitch circle of the fixed outer gear ring. This curve is called a hypocycloid. An epicyclic gear train with a planet engaging a sun gear is called a planetary gear train. The sun gear is fixed, while the planet gear is driven.
An epicyclic gear train contains several meshes. Each gear has a different number of meshes, which translates into RPM. The epicyclic gear can increase the load application frequency by translating input torque into the meshes. The epicyclic gear train consists of 3 gears, the sun, planet, and ring. The sun gear is the center gear, while the planets orbit the sun. The ring gear has several teeth, which increases the gear speed.
Another type of epicyclic gear is the planetary gearbox. This gear box has multiple toothed wheels rotating around a central shaft. Its low-profile design makes it a popular choice for space-constrained applications. This gearbox type is used in automatic transmissions. In addition, it is used for many industrial uses involving electric gear motors. The type of gearbox you use will depend on the speed and torque of the input and output shafts.

China Custom Trailer Landing Gear for Semi Trailer Parts 28t Landing Gear Trailer Jack bevel gearboxChina Custom Trailer Landing Gear for Semi Trailer Parts 28t Landing Gear Trailer Jack bevel gearbox
editor by CX 2023-06-08