Warranty: 1 year
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Retail, Construction works , Energy & Mining, Construction Machinery, Excavators, Cranes
Customized support: OEM, ODM, OBM
Gearing Arrangement: Planetary
Output Torque: 25717 Nm
Input Speed: 2982 rpm
Output Speed: 142 rpm
Name: reducer
Application: slewing drive for excavator, crane
Ratio: 21:1
Input Form: Hydraulic Motor
Rated output torque: 16880 Nm
Gears Style: planetary gears
Type: planetary reducer
Customization: Acceptable
Mounting: customer require
Power type: Hydraulic motor
Certification: ISO
Packaging Details: Wooden box
Port: HangZhou
Product Overview deep water well drilling machine parts hydraulic gearbox for philippines areaDaixin planetary reducer gearbox is designed with large torque, high start and transmission efficiency, low-speed stability, compact radial size, low noise, etc. The main devices we are making are walking reducers, lifting reducers and swing reducers. They are widely used for vehicle cranes, crawler cranes, truck mounted cranes, marine cranes, aerial work trucks, excavators, Involute Spur Gear 1400rpm 130 Worm Gearbox Nmrv Reducer with 80b5 Input Flange etc. Main Features 1) Compact size2) Low noise3) High transmission efficiency4) Good working condition under lower speed5) Customized hydraulic motors and brakes for different request6) One Year Warranty from reception7) Free components for replacement within warranty period8) Professional and tailored solution for different requirements9) Free technical support at any time10) Customer training is available. Product Paramenters Product Name Swing reducerModelDH20B21ERated output torque16880 Nm Max. output torque25717 NmReduction ratio21:1Rated input torque846 NmMax. Output speed142 r/minBraking typeHydraulic wet braking system Product packaging Packing and shipping1. Packed by wooden box, fumigation-free for export and import standard.2. Shipped by sea or air with customer require Company Profile ZheJiang CZPT Intelligent Technology Co., Ltd is a scientific and technological enterprise engaged in the research, development and production of planetary gear transmission products, like walking reducers, swing reducers, lifting reducers, hydraulic planetary winches, etc. The company has always put quality management as the top priority of the company’s development. The planetary gear transmission productions are manufactured not only meet the international ISO 4301 and ISO9001 standards, but also meet the US SAE J706 and the European Union CE standards. CZPT Intelligent Technology relies on quality, reputation and service to develop, cultivate and consolidate the national and global markets. Be our partners, be our friends. The company has always put quality management as the top priority of the company’s development. The planetary gear transmission productions are manufactured not only meet the international ISO 4301 and ISO9001 standards, but also meet the US SAE J706 and the European Union CE standards. Daixin Intelligent Technology relies on quality, reputation and service to develop, cultivate and consolidate the national and global markets. Currently, the cooperative customers include: the famous construction machinery manufacturers CZPT and Zoomlion, the largest wrecker manufacturer ZheJiang Yuehai Company, and the largest high-altitude vehicle manufacturer HangZhou Handler Company. Products are also exported to Russia, Canada, High Torque DC Motor Electric Golf Cart Motor ZQS48-3.8-T India, Malaysia and other countries. FAQ 1.How to choose the gearbox which meets our requirement?A)Look through our shop, find a proper item, send me an inquiry, I quote details for you.B)In case no suitable item in our shop, send me an inquiry with your requirements, we can customize for you.2.How to get a good quotation?To offer a precise price, please send me purchasing quantity. Different quantity, different packing size and weight, then different exporting cost.3.What is payment term?A)For regular design: 30% deposit, the balance before loading. B)For customized design: 50% deposit, the balance before loading. The longer cooperation, the better payment term.4.How to ship?Different methods are acceptable: EXW, FOB, CFR, CIF, DDU. We follow your convenience.5.How about after-sale service?A)Within warranty, all spare parts are delivered for free. B)Exceed warranty, all spare parts are offered with the lowest production cost.Warranty period is 1 year, from the time you receive the gearbox, not include production and shipping time. We will register for you, and servicing the whole lifetime of gearbox, OEM Auto Parts 26 12 7 564 695 Drive Shaft Center Bearing Support for BMW so no worry for usage.
The Parts of a Gearbox
There are many parts of a Gearbox, and this article will help you understand its functions and components. Learn about its maintenance and proper care, and you’ll be on your way to repairing your car. The complexity of a Gearbox also makes it easy to make mistakes. Learn about its functions and components so that you’ll be able to make the best choices possible. Read on to learn more. Then, get your car ready for winter!
Components
Gearboxes are fully integrated mechanical components that consist of a series of gears. They also contain shafts, bearings, and a flange to mount a motor. The terms gearhead and gearbox are not often used interchangeably in the motion industry, but they are often synonymous. Gearheads are open gearing assemblies that are installed in a machine frame. Some newer designs, such as battery-powered mobile units, require tighter integration.
The power losses in a gearbox can be divided into no-load and load-dependent losses. The no-load losses originate in the gear pair and the bearings and are proportional to the ratio of shaft speed and torque. The latter is a function of the coefficient of friction and speed. The no-load losses are the most serious, since they represent the largest proportion of the total loss. This is because they increase with speed.
Temperature measurement is another important preventive maintenance practice. The heat generated by the gearbox can damage components. High-temperature oil degrades quickly at high temperatures, which is why the sump oil temperature should be monitored periodically. The maximum temperature for R&O mineral oils is 93degC. However, if the sump oil temperature is more than 200degF, it can cause seal damage, gear and bearing wear, and premature failure of the gearbox.
Regardless of its size, the gearbox is a crucial part of a car’s drivetrain. Whether the car is a sports car, a luxury car, or a farm tractor, the gearbox is an essential component of the vehicle. There are two main types of gearbox: standard and precision. Each has its own advantages and disadvantages. The most important consideration when selecting a gearbox is the torque output.
The main shaft and the clutch shaft are the two major components of a gearbox. The main shaft runs at engine speed and the countershaft may be at a lower speed. In addition to the main shaft, the clutch shaft has a bearing. The gear ratio determines the amount of torque that can be transferred between the countershaft and the main shaft. The drive shaft also has another name: the propeller shaft.
The gears, shafts, and hub/shaft connection are designed according to endurance design standards. Depending on the application, each component must be able to withstand the normal stresses that the system will experience. Oftentimes, the minimum speed range is ten to twenty m/s. However, this range can differ between different transmissions. Generally, the gears and shafts in a gearbox should have an endurance limit that is less than that limit.
The bearings in a gearbox are considered wear parts. While they should be replaced when they wear down, they can be kept in service much longer than their intended L10 life. Using predictive maintenance, manufacturers can determine when to replace the bearing before it damages the gears and other components. For a gearbox to function properly, it must have all the components listed above. And the clutch, which enables the transmission of torque, is considered the most important component.
Functions
A gearbox is a fully integrated mechanical component that consists of mating gears. It is enclosed in a housing that houses the shafts, bearings, and flange for motor mounting. The purpose of a gearbox is to increase torque and change the speed of an engine by connecting the two rotating shafts together. A gearbox is generally made up of multiple gears that are linked together using couplings, belts, chains, or hollow shaft connections. When power and torque are held constant, speed and torque are inversely proportional. The speed of a gearbox is determined by the ratio of the gears that are engaged to transmit power.
The gear ratios in a gearbox are the number of steps a motor can take to convert torque into horsepower. The amount of torque required at the wheels depends on the operating conditions. A vehicle needs more torque than its peak torque when it is moving from a standstill. Therefore, the first gear ratio is used to increase torque and move the vehicle forward. To move up a gradient, more torque is required. To maintain momentum, the intermediate gear ratio is used.
As metal-to-metal contact is a common cause of gearbox failure, it is essential to monitor the condition of these components closely. The main focus of the proactive series of tests is abnormal wear and contamination, while the preventative tests focus on oil condition and additive depletion. The AN and ferrous density tests are exceptions to this rule, but they are used more for detecting abnormal additive depletion. In addition, lubrication is critical to the efficiency of gearboxes.
Maintenance
Daily maintenance is a critical aspect of the life cycle of a gearbox. During maintenance, you must inspect all gearbox connection parts. Any loose or damaged connection part should be tightened immediately. Oil can be tested using an infrared thermometer and particle counters, spectrometric analysis, or ferrography. You should check for excessive wear and tear, cracks, and oil leaks. If any of these components fail, you should replace them as soon as possible.
Proper analysis of failure patterns is a necessary part of any preventative maintenance program. This analysis will help identify the root cause of gearbox failures, as well as plan for future preventative maintenance. By properly planning preventative maintenance, you can avoid the expense and inconvenience of repairing or replacing a gearbox prematurely. You can even outsource gearbox maintenance to a company whose experts are knowledgeable in this field. The results of the analysis will help you create a more effective preventative maintenance program.
It is important to check the condition of the gearbox oil periodically. The oil should be changed according to its temperature and the hours of operation. The temperature is a significant determinant of the frequency of oil changes. Higher temperatures require more frequent changes, and the level of protection from moisture and water reduces by 75%. At elevated temperatures, the oil’s molecular structure breaks down more quickly, inhibiting the formation of a protective film.
Fortunately, the gear industry has developed innovative technologies and services that can help plant operators reduce their downtime and ensure optimal performance from their industrial gears. Here are 10 steps to ensure that your gearbox continues to serve its purpose. When you are preparing for maintenance, always keep in mind the following tips:
Regular vibration analysis is a vital part of gearbox maintenance. Increased vibration signals impending problems. Visually inspect the internal gears for signs of spiraling and pitting. You can use engineers’ blue to check the contact pattern of gear teeth. If there is a misalignment, bearings or housings are worn and need replacement. Also make sure the breathers remain clean. In dirty applications, this is more difficult to do.
Proper lubrication is another key factor in the life of gearboxes. Proper lubrication prevents failure. The oil must be free of foreign materials and have the proper amount of flow. Proper lubricant selection depends on the type of gear, reduction ratio, and input power. In addition to oil level, the lubricant must be regulated for the size and shape of gears. If not, the lubricant should be changed.
Lack of proper lubrication reduces the strength of other gears. Improper maintenance reduces the life of the transmission. Whether the transmission is overloaded or undersized, excessive vibration can damage the gear. If it is not properly lubricated, it can be damaged beyond repair. Then, the need for replacement gears may arise. However, it is not a time to waste a lot of money and time on repairs.
