China OEM High Precision 125mm Zdr Series Planetary Gearbox for Servo Motor with high quality

Item Description

125mm ZDR Series Large Precision Planetary Gearbox For Servo Moto

Merchandise Description

ZDR series planetary gearbox has adopted helical equipment layout, so the meshing of gears can be smoother. This collection has a double-supported and sealed structure, less difficult to install for customers. It is commonly utilised in linear manipulators, packaging machinery, assembly strains and etc. The maximum backlash of the ZDR collection is significantly less than 5 arc.min and the reduction ratio handles 3~81.

The Product Advantages of Planetary Gearbox:

1.Flexible framework design and style, in line with numerous doing work conditions.
2.Ring equipment processing engineering: Employing interior equipment slotting device and hobbing machine the precision of ring equipment right after processing can achieve GB7.
three.Hardened equipment secondary scraping engineering: secondary large-velocity dry slicing of gear gets rid of equipment deformation caused by warmth treatment method. Gear accuracy can achieve GB6.
four.Dependable backlash testing.

How to Read:
a hundred twenty five ZDR  20   ( )     (S) –   750  T1   ( )
   a     b      c     d       e        f       g     h


Spesifications & Particulars

When enter speed is 3000rpm

Note1) The minute of input shaft conversion is only obtained from the reducer, so it does not consist of moment of inertia of the motor.
Note2) The max. enter speed is 5000rpm. Normally set to 3000rpm or much less.
Note3) The permissble radial load is indicated on the centre of the output shaft.
Note4) All values are inside the variety corresponding to helical gear.

When enter pace is 3000rpm

Note1) The moment of enter shaft conversion is only received from the reducer, so it does not contain instant of inertia of the motor.
Note2) The max, input pace is 5000rpm. Normally established to 3000rpm or considerably less.
Note3) The permissble radial load is indicated on the middle of the output shaft.
Note4) All values are inside the selection corresponding to helical gear.

When enter pace is 2000rpm

Note1) The moment of enter shaft conversion is only gained from the reducer, so it does not include instant of inertia of the motor.
Note2) The permissble radial load is indicated on the heart of the output shaft.
Note3) All values are inside of the selection corresponding to helical gear.

Dimensions (Device: mm):


Note1) You should inquire to us if motor design just isn’t regular (Matching motor listing). (The flange dimension may possibly be diverse if motor assension is different.)
Note2) Rotation of the output shaft is in the exact same course as that of motor input.
Note3) All values are in the range corresponding to helical equipment.


Double assist system

one.The planetary gear is placed in the middle of the output shaft.
2.The output shaft bearing is put at both ends of the planetary gear.
three.Individual sunshine gear and coupling.

Compact output shaft mechanism

It adopts the style of output shaft built-in program, compact structure, large rigidity, and it can endure massive affect. Spot the input CZPT and the sun equipment at the center of the output shaft to increase the concentricity of the components, thus effectively controlling the gear clearance and enhancing the backlash of the whole gearbox.



Full needle composition

The interior bearing of the planetary gear adopts a full-needle design and style, the interior hole is manufactured by a grinding process, the area hardness is HRC60, and the cylindricity is much less than .003mm.

Ring gear structure

The integral framework of the ring equipment and the output flange increases its rigidity and decreases misassembly.


Other Design Type of ZDR Sequence

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Firm Profile



Our Companies

1.Routine maintenance time & Guarantee: one yr following leaving manufacturing unit.

two.Other service: Such as modeling assortment guidebook, set up guidebook, and difficulty shooting guidebook, etc.


Q: What’re your primary merchandise?
A: We presently make Brushed DC Motors, Brushed DC Equipment Motors, Planetary DC Equipment Motors, Brushless DC Motors, AC Motors, High Precision Planetary Gearbox and Precision Cycloidal Gearbox and so forth.. You can verify the technical specs for previously mentioned motors on our internet site and you can e mail us to suggest needed motors per your specification way too.

Q: How to decide on a ideal motor or gearbox?
A:If you have motor photographs or drawings to demonstrate us, or you have detailed specifications, this kind of as, voltage, velocity, torque, motor measurement, doing work manner of the motor, needed lifetime and sound stage and many others, remember to do not be reluctant to permit us know, then we can advocate ideal motor per your request appropriately.

Q: Do you have a custom-made provider for your normal motors or gearboxes?
A: Indeed, we can customize per your ask for for the voltage, velocity, torque and shaft size/shape. If you need further wires/cables soldered on the terminal or need to include connectors, or capacitors or EMC we can make it too.

Q: Do you have an personal layout provider for motors?
A: Sure, we would like to layout motors separately for our customers, but some kind of  molds are necessory to be developped which might require precise price and layout charging. 

Q: What is your guide time?
A: Normally speaking, our standard standard item will need to have fifteen-30days, a bit longer for custom-made products. But we are extremely versatile on the lead time, it will depend on the particular orders.

The Elements of a Gearbox

There are a lot of parts of a Gearbox, and this report will support you realize its functions and components. Find out about its upkeep and correct treatment, and you’ll be on your way to repairing your automobile. The complexity of a Gearbox also makes it easy to make mistakes. Understand about its features and factors so that you will be ready to make the best choices attainable. Read on to find out more. Then, get your auto all set for winter season!


Gearboxes are entirely built-in mechanical factors that consist of a sequence of gears. They also contain shafts, bearings, and a flange to mount a motor. The conditions gearhead and gearbox are not usually utilised interchangeably in the motion sector, but they are frequently synonymous. Gearheads are open gearing assemblies that are mounted in a equipment body. Some more recent patterns, these kinds of as battery-driven cell models, call for tighter integration.
The electricity 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 operate of the coefficient of friction and pace. The no-load losses are the most severe, since they signify the greatest proportion of the overall loss. This is simply because they increase with pace.
Temperature measurement is an additional important preventive servicing follow. The heat generated by the gearbox can damage components. Large-temperature oil degrades speedily at high temperatures, which is why the sump oil temperature need to be monitored periodically. The greatest temperature for R&O mineral oils is 93degC. However, if the sump oil temperature is far more than 200degF, it can trigger seal hurt, gear and bearing wear, and untimely failure of the gearbox.
Regardless of its size, the gearbox is a vital element of a car’s drivetrain. Regardless of whether the car is a sports activities automobile, a luxurious car, or a farm tractor, the gearbox is an crucial part of the motor vehicle. There are two main types of gearbox: common and precision. Every single has its own rewards and drawbacks. The most essential thought when choosing a gearbox is the torque output.
The main shaft and the clutch shaft are the two key factors of a gearbox. The primary shaft operates at engine pace and the countershaft might be at a lower pace. In addition to the principal shaft, the clutch shaft has a bearing. The gear ratio determines the sum of torque that can be transferred between the countershaft and the main shaft. The travel shaft also has yet another name: the propeller shaft.
The gears, shafts, and hub/shaft connection are developed according to stamina design and style standards. Depending on the application, each component should be able to face up to the typical stresses that the system will encounter. Oftentimes, the minimal pace selection is ten to twenty m/s. Nevertheless, this selection can differ between different transmissions. Typically, the gears and shafts in a gearbox must have an stamina limit that is much less than that limit.
The bearings in a gearbox are regarded use areas. Although they should be changed when they put on down, they can be retained in provider significantly lengthier than their supposed L10 existence. Using predictive servicing, producers can determine when to exchange the bearing ahead of it damages the gears and other elements. For a gearbox to perform properly, it should have all the elements shown previously mentioned. And the clutch, which permits the transmission of torque, is considered the most essential component.


A gearbox is a entirely integrated mechanical part that is composed of mating gears. It is enclosed in a housing that properties the shafts, bearings, and flange for motor mounting. The goal of a gearbox is to improve torque and alter the speed of an motor by connecting the two rotating shafts with each other. A gearbox is usually made up of a number of gears that are linked jointly utilizing couplings, belts, chains, or hollow shaft connections. When electricity and torque are held continuous, speed and torque are inversely proportional. The velocity of a gearbox is decided by the ratio of the gears that are engaged to transmit electrical power.
The gear ratios in a gearbox are the number of steps a motor can consider to change torque into horsepower. The sum of torque needed at the wheels is dependent on the functioning conditions. A vehicle demands a lot more torque than its peak torque when it is relocating from a standstill. Consequently, the 1st gear ratio is used to improve torque and transfer the vehicle forward. To shift up a gradient, more torque is required. To maintain momentum, the intermediate equipment ratio is employed.
As metal-to-metal contact is a common trigger of gearbox failure, it is essential to check the situation of these components closely. The primary concentrate of the proactive sequence of tests is abnormal wear and contamination, although the preventative exams target on oil issue and additive depletion. The AN and ferrous density tests are exceptions to this rule, but they are used more for detecting irregular additive depletion. In addition, lubrication is critical to the performance of gearboxes.

Routine maintenance

Day-to-day upkeep is a essential element of the lifestyle cycle of a gearbox. During servicing, you should examine all gearbox relationship areas. Any loose or damaged relationship component ought to be tightened immediately. Oil can be analyzed using an infrared thermometer and particle counters, spectrometric evaluation, or ferrography. You ought to examine for extreme put on and tear, cracks, and oil leaks. If any of these components fall short, you need to replace them as soon as achievable.
Suitable evaluation of failure patterns is a necessary element of any preventative upkeep plan. This investigation will assist identify the root lead to of gearbox failures, as well as plan for potential preventative maintenance. By effectively planning preventative maintenance, you can avoid the price and inconvenience of repairing or replacing a gearbox prematurely. You can even outsource gearbox routine maintenance to a firm whose professionals are educated in this field. The final results of the analysis will assist you create a a lot more effective preventative routine maintenance system.
It is critical to examine the situation of the gearbox oil periodically. The oil should be transformed according to its temperature and the hours of procedure. The temperature is a considerable determinant of the frequency of oil alterations. Larger temperatures need more regular modifications, and the degree of safety from humidity and drinking water minimizes by 75%. At elevated temperatures, the oil’s molecular structure breaks down far more speedily, inhibiting the formation of a protecting movie.
Luckily, the equipment market has developed revolutionary technologies and companies that can aid plant operators reduce their downtime and guarantee optimum performance from their industrial gears. Right here are ten actions to ensure that your gearbox proceeds to provide its function. When you are getting ready for upkeep, constantly keep in thoughts the subsequent suggestions:
Typical vibration examination is a important part of gearbox servicing. Elevated vibration signals impending issues. Visually examine the internal gears for indications of spiraling and pitting. You can use engineers’ blue to verify the speak to pattern of gear tooth. If there is a misalignment, bearings or housings are worn and require alternative. Also make positive the breathers continue being clean. In soiled applications, this is more hard to do.
Correct lubrication is another crucial aspect in the lifestyle of gearboxes. Proper lubrication prevents failure. The oil must be free of charge of foreign components and have the proper volume of flow. Proper lubricant choice relies upon on the kind of gear, reduction ratio, and input electricity. In addition to oil stage, the lubricant have to be controlled for the dimension and condition of gears. If not, the lubricant should be altered.
Lack of appropriate lubrication reduces the toughness of other gears. Improper maintenance reduces the life of the transmission. Whether or not the transmission is overloaded or undersized, too much vibration can damage the gear. If it is not appropriately lubricated, it can be damaged beyond mend. Then, the need for alternative gears could arise. Even so, it is not a time to waste a good deal of income and time on repairs.

China OEM High Precision 125mm Zdr Series Planetary Gearbox for Servo Motor     with high qualityChina OEM High Precision 125mm Zdr Series Planetary Gearbox for Servo Motor     with high quality