China High Torque Hollow Shaft Reducer Compact RV Cycloidal Pin Wheel Gearbox for Robot Joints Nabtesco RV Gearbox with high quality

Solution Description

Information Images:

one. Hollow system, which can insert cables inside the reducer, so as to understand the room-conserving design and style of the gadget
2. Developed-in mechanism of the major bearing: the reliability is enhanced and the complete expense is reduced
3. Angular contact ball bearings are set up, so they can assistance external hundreds. Due to the fact of its large rigidity and large second bearing potential, it can be used to rotating shafts It can minimize the number of elements necessary Effortless set up
4.2-stage reduction system: tiny vibration, tiny gD2, the slow revolution velocity of RV gear, lowered vibration, lowered motor direct junction (input equipment), and inertia
5. Double column assist mechanism: high torsional rigidity Powerful effect resistance (five hundred% of rated torque) The crankshaft can be supported by 2 columns
six. Rolling speak to system: exceptional starting effectiveness Modest wear and prolonged services life Modest backlash (1arc. Min.) Use of rolling bearings
7. Needle equipment mechanism: little backlash (1arc. Min.), robust effect resistance (five hundred% of rated torque), and much more simultaneous meshing of RV gear and needle teeth

Benefits:
one. Large torsional rigidity, high torque
2. Focused complex personnel can be on the go to offer style solutions
3. Factory direct income fantastic workmanship tough high quality assurance
4. Product top quality troubles have a 1-yr warranty time, can be returned for substitute or mend

Firm profile:

HangZhou CZPT Technological innovation Co., Ltd. was recognized in 2014. Primarily based on extended-phrase accrued expertise in mechanical layout and production, various varieties of harmonic reducers have been produced according to the diverse wants of buyers. The company is in a stage of fast development. , Equipment and personnel are constantly growing. Now we have a group of experienced technological and managerial staff, with sophisticated equipment, comprehensive screening techniques, and merchandise production and design capabilities. Item layout and production can be carried out in accordance to consumer demands, and a selection of large-precision transmission components such as harmonic reducers and RV reducers have been shaped the goods have been bought in domestic and world-wide(This kind of as Usa, Germany, Turkey, India) and have been utilized in industrial robots, device resources, medical products, laser processing, cutting, and dispensing, Brush producing, LED tools producing, precision digital equipment, and other industries have set up a excellent status.
In the long term, Hongwing will adhere to the purpose of gathering abilities, maintaining near to the marketplace, and technological innovation, carry ahead the price pursuit in the area of harmonic generate&RV reducers, seek the frequent development of the company and the modern society, and quietly create alone into a effectively-recognized brand with unbiased intellectual residence rights. Good quality supplier in the subject of precision transmission”.

Toughness manufacturing unit:

Our plant has an complete campus The quantity of workshops is all around three hundred Whether or not it’s from the production of uncooked materials and the procurement of raw materials to the inspection of concluded goods, we are undertaking it ourselves. There is a comprehensive production system

HST-I Parameter:

Score table
Output velocity (rpm) 5 10 fifteen 20 twenty five 30 40 50 sixty
Model Speed ratio code R
Pace ratio
Output torque (nm)
Enter potential (kw)
Axis rotation Shell rotation
RV-10C 27 27 26 136
/ .09
111
/ .sixteen
ninety eight
/ .21
90
/ .25
eighty four
/ .29
80
/ .34
73
/ .41
sixty eight
/ .forty seven
sixty five
/ .54
RV-27C 36.57 1,390/38 1352/38 368
/ .26
299
/ .forty two
265
/ .fifty five
243
/ .68
227
/ .seventy nine
215
/ .90
197
/ 1.10
184
/ 1.29
174
/ 1.46
RV-50C 32.fifty four 1,985/61 1924/61 681
/ .48
554
/ .seventy seven
490
/ 1.03
450
/ 1.26
420
/ 1.forty seven
398
/ 1.67
366
/ 2.04
341
/ 2.38
 
RV-100C 36.seventy five 36.seventy five 35.seventy five 1,362
/ .ninety five
one,107
/ 1.55
980
/ 2.05
899
/ 2.51
841
/ 2.ninety four
796
/ 3.33
730
/ 4.08
   
RV-200C 34.86 one,499/forty three 1456/43 2,724
/ 1.90
2,215
/ 3.09
1,960
/ 4.11
one,803
/ 5.04
1,686
/ 5.88
one,597
/ 6.69
     
RV-320C 35.sixty one two,778/78 2700/seventy eight 4,361
/ 3.04
3,538
/ 4.94
3,136
/ 6.57
2,881
/ 8.05
two,690
/ 9.forty one
       
RV-500C 37.34 3,099/83 3016/eighty three 6,811
/ 4.seventy five
5,537
/ 7.73
four,900
/ 10.26
four,498
/ 12.fifty six
         
Be aware: 1. The allowable output velocity is influenced by obligation cycle, load, and ambient temperature. When the allowable output pace is over NS1, please seek the advice of our organization about the safety measures.
2. Calculate the input capability (kW) by the pursuing formula.
Input ability (kW)=2π*N*T/sixty*η/one hundred*ten*ten*10 N: output speed (RPM)
T: output torque (nm)
η =  seventy five: reducer effectiveness (%)
The enter potential is the reference value.
three. When making use of the reducer at a lower temperature, the no-load working torque will enhance, so remember to pay out focus when selecting the motor.
(refer to minimal-temperature qualities)

T0
Rated torque
(note. 7)
N0
Rated output speed
K
Rated life
TS1
Allowable starting up and stopping torque
TS2
Instantaneous greatest allowable torque
NS0
Allowable highest output speed
(Observe 1)
Backlash Empty assortment MAX. Angle transfer Error MAX. Commence effectiveness signifies the worth MO1
MO1. Permissible instant (Be aware.4)
MO2
Momstant moment Permissible second
Wr
Allowable radial load (Notice.9)
I
Transformed price of inertia instant input shaft
(note. 5)
Second of inertia I
(I = GD2 / 4) regular centre gear
weight
(Nm) (rpm) (h) (Nm) (Nm) (r/min) (arc.sec.) (arc.min.) (arc.sec.) (%) (Nm) (Nm) (N) (kgm2) (kgm2) (kg)
98 15 six,000 245 490 eighty 1. one. 70 seventy five 686 one,372 five,755 one.38×10-five .678×10-three four.6
264.six fifteen 6,000 662 1,323 sixty 1. 1. 70 80 980 1,960 6,520 .550×10-4 .563×10-3 eight.five
490 15 6,000 1,225 Bolt fastening 2,450 50 1. 1. 60 75 1,764 3,528 9,428 1.82×10-4 0.363×10-two 14.6
By way of-hole bolt fastening 1,960
980 15 6,000 2,450 Bolt fastening 4,900 40 1. 1. 50 80 2,450 4,900 11,802 0.475×10-3 0.953×10-two 19.five
By means of-hole bolt fastening 3,430
1,960 15 6,000 4,900 Bolt fastening 9,800 30 1. 1. 50 80 8,820 17,640 31,455 1.39×10-3 1.94×10-2 55.6
Via-gap bolt fastening 7,350
3,136 fifteen six,000 seven,840 15,680 twenty five 1. one. fifty 85 20,580 39,two hundred 57,087 .518×10-two .405×10-1 seventy nine.5
4,900 fifteen 6,000 twelve,250 24,500 twenty one. one. fifty eighty 34,300 78,four hundred eighty two,970 .996×10-2 one.014×10-1 154
 
4. The allowable torque will fluctuate according to the thrust load. You should validate by the allowable second line diagram.
five. For second stiffness and torsion stiffness, make sure you refer to the inclination angle and torsion angle calculation.
six. Rated torque refers to the torque price reflecting the rated existence at rated output pace, not the knowledge exhibiting the higher limit of load. Remember to refer to the glossary (p.eighty one) and item choice circulation chart (p.82).
7. The above specifications are attained in accordance to the company’s evaluation technique. Please confirm that the merchandise fulfills the use situations of carrying real aircraft ahead of use.
eight. When the radial load is inside dimension B, please use it inside of the allowable radial load range.

Purposes:

FQA:
Q: What ought to I give when I choose a gearbox/speed reducer?
A: The ideal way is to supply the motor drawing with parameters. Our engineer will check out and advocate the most suitable gearbox model for your reference.
Or you can also offer the underneath specification as nicely:
1) Sort, design, and torque.
2) Ratio or output velocity
3) Functioning situation and link method
four) Good quality and put in machine identify
five) Input method and enter pace
6) Motor model product or flange and motor shaft size
 

US $620-1,300
/ Piece
|
1 Piece

(Min. Order)

###

Application: Motor, Motorcycle, Machinery, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Cylindrical Gear
Step: Single-Step

###

Samples:
US$ 600/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Rating table
Output speed (rpm) 5 10 15 20 25 30 40 50 60
Model Speed ratio code R
Speed ratio
Output torque (nm)
Input capacity (kw)
Axis rotation Shell rotation
RV-10C 27 27 26 136
/ 0.09
111
/ 0.16
98
/ 0.21
90
/ 0.25
84
/ 0.29
80
/ 0.34
73
/ 0.41
68
/ 0.47
65
/ 0.54
RV-27C 36.57 1,390/38 1352/38 368
/ 0.26
299
/ 0.42
265
/ 0.55
243
/ 0.68
227
/ 0.79
215
/ 0.90
197
/ 1.10
184
/ 1.29
174
/ 1.46
RV-50C 32.54 1,985/61 1924/61 681
/ 0.48
554
/ 0.77
490
/ 1.03
450
/ 1.26
420
/ 1.47
398
/ 1.67
366
/ 2.04
341
/ 2.38
 
RV-100C 36.75 36.75 35.75 1,362
/ 0.95
1,107
/ 1.55
980
/ 2.05
899
/ 2.51
841
/ 2.94
796
/ 3.33
730
/ 4.08
   
RV-200C 34.86 1,499/43 1456/43 2,724
/ 1.90
2,215
/ 3.09
1,960
/ 4.11
1,803
/ 5.04
1,686
/ 5.88
1,597
/ 6.69
     
RV-320C 35.61 2,778/78 2700/78 4,361
/ 3.04
3,538
/ 4.94
3,136
/ 6.57
2,881
/ 8.05
2,690
/ 9.41
       
RV-500C 37.34 3,099/83 3016/83 6,811
/ 4.75
5,537
/ 7.73
4,900
/ 10.26
4,498
/ 12.56
         
Note: 1. The allowable output speed is affected by duty cycle, load, and ambient temperature. When the allowable output speed is above NS1, please consult our company about the precautions.
2. Calculate the input capacity (kW) by the following formula.
Input capacity (kW)=2π*N*T/60*η/100*10*10*10 N: output speed (RPM)
T: output torque (nm)
η =  75: reducer efficiency (%)
The input capacity is the reference value.
3. When using the reducer at a low temperature, the no-load running torque will increase, so please pay attention when selecting the motor.
(refer to low-temperature characteristics)

###

T0
Rated torque
(note. 7)
N0
Rated output speed
K
Rated life
TS1
Allowable starting and stopping torque
TS2
Instantaneous maximum allowable torque
NS0
Allowable maximum output speed
(Note 1)
Backlash Empty range MAX. Angle transfer Error MAX. Start efficiency represents the value MO1
MO1. Permissible moment (Note.4)
MO2
Momstant moment Permissible moment
Wr
Allowable radial load (Note.9)
I
Converted value of inertia moment input shaft
(note. 5)
Moment of inertia I
(I = GD2 / 4) standard center gear
weight
(Nm) (rpm) (h) (Nm) (Nm) (r/min) (arc.sec.) (arc.min.) (arc.sec.) (%) (Nm) (Nm) (N) (kgm2) (kgm2) (kg)
98 15 6,000 245 490 80 1.0 1.0 70 75 686 1,372 5,755 1.38×10-5 0.678×10-3 4.6
264.6 15 6,000 662 1,323 60 1.0 1.0 70 80 980 1,960 6,520 0.550×10-4 0.563×10-3 8.5
490 15 6,000 1,225 Bolt fastening 2,450 50 1.0 1.0 60 75 1,764 3,528 9,428 1.82×10-4 0.363×10-2 14.6
Through-hole bolt fastening 1,960
980 15 6,000 2,450 Bolt fastening 4,900 40 1.0 1.0 50 80 2,450 4,900 11,802 0.475×10-3 0.953×10-2 19.5
Through-hole bolt fastening 3,430
1,960 15 6,000 4,900 Bolt fastening 9,800 30 1.0 1.0 50 80 8,820 17,640 31,455 1.39×10-3 1.94×10-2 55.6
Through-hole bolt fastening 7,350
3,136 15 6,000 7,840 15,680 25 1.0 1.0 50 85 20,580 39,200 57,087 0.518×10-2 0.405×10-1 79.5
4,900 15 6,000 12,250 24,500 20 1.0 1.0 50 80 34,300 78,400 82,970 0.996×10-2 1.014×10-1 154
 
4. The allowable torque will vary according to the thrust load. Please confirm by the allowable moment line diagram.
5. For moment stiffness and torsion stiffness, please refer to the inclination angle and torsion angle calculation.
6. Rated torque refers to the torque value reflecting the rated life at rated output speed, not the data showing the upper limit of load. Please refer to the glossary (p.81) and product selection flow chart (p.82).
7. The above specifications are obtained according to the company’s evaluation method. Please confirm that the product meets the use conditions of carrying real aircraft before use.
8. When the radial load is within dimension B, please use it within the allowable radial load range.
US $620-1,300
/ Piece
|
1 Piece

(Min. Order)

###

Application: Motor, Motorcycle, Machinery, Agricultural Machinery
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Coaxial
Gear Shape: Cylindrical Gear
Step: Single-Step

###

Samples:
US$ 600/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Rating table
Output speed (rpm) 5 10 15 20 25 30 40 50 60
Model Speed ratio code R
Speed ratio
Output torque (nm)
Input capacity (kw)
Axis rotation Shell rotation
RV-10C 27 27 26 136
/ 0.09
111
/ 0.16
98
/ 0.21
90
/ 0.25
84
/ 0.29
80
/ 0.34
73
/ 0.41
68
/ 0.47
65
/ 0.54
RV-27C 36.57 1,390/38 1352/38 368
/ 0.26
299
/ 0.42
265
/ 0.55
243
/ 0.68
227
/ 0.79
215
/ 0.90
197
/ 1.10
184
/ 1.29
174
/ 1.46
RV-50C 32.54 1,985/61 1924/61 681
/ 0.48
554
/ 0.77
490
/ 1.03
450
/ 1.26
420
/ 1.47
398
/ 1.67
366
/ 2.04
341
/ 2.38
 
RV-100C 36.75 36.75 35.75 1,362
/ 0.95
1,107
/ 1.55
980
/ 2.05
899
/ 2.51
841
/ 2.94
796
/ 3.33
730
/ 4.08
   
RV-200C 34.86 1,499/43 1456/43 2,724
/ 1.90
2,215
/ 3.09
1,960
/ 4.11
1,803
/ 5.04
1,686
/ 5.88
1,597
/ 6.69
     
RV-320C 35.61 2,778/78 2700/78 4,361
/ 3.04
3,538
/ 4.94
3,136
/ 6.57
2,881
/ 8.05
2,690
/ 9.41
       
RV-500C 37.34 3,099/83 3016/83 6,811
/ 4.75
5,537
/ 7.73
4,900
/ 10.26
4,498
/ 12.56
         
Note: 1. The allowable output speed is affected by duty cycle, load, and ambient temperature. When the allowable output speed is above NS1, please consult our company about the precautions.
2. Calculate the input capacity (kW) by the following formula.
Input capacity (kW)=2π*N*T/60*η/100*10*10*10 N: output speed (RPM)
T: output torque (nm)
η =  75: reducer efficiency (%)
The input capacity is the reference value.
3. When using the reducer at a low temperature, the no-load running torque will increase, so please pay attention when selecting the motor.
(refer to low-temperature characteristics)

###

T0
Rated torque
(note. 7)
N0
Rated output speed
K
Rated life
TS1
Allowable starting and stopping torque
TS2
Instantaneous maximum allowable torque
NS0
Allowable maximum output speed
(Note 1)
Backlash Empty range MAX. Angle transfer Error MAX. Start efficiency represents the value MO1
MO1. Permissible moment (Note.4)
MO2
Momstant moment Permissible moment
Wr
Allowable radial load (Note.9)
I
Converted value of inertia moment input shaft
(note. 5)
Moment of inertia I
(I = GD2 / 4) standard center gear
weight
(Nm) (rpm) (h) (Nm) (Nm) (r/min) (arc.sec.) (arc.min.) (arc.sec.) (%) (Nm) (Nm) (N) (kgm2) (kgm2) (kg)
98 15 6,000 245 490 80 1.0 1.0 70 75 686 1,372 5,755 1.38×10-5 0.678×10-3 4.6
264.6 15 6,000 662 1,323 60 1.0 1.0 70 80 980 1,960 6,520 0.550×10-4 0.563×10-3 8.5
490 15 6,000 1,225 Bolt fastening 2,450 50 1.0 1.0 60 75 1,764 3,528 9,428 1.82×10-4 0.363×10-2 14.6
Through-hole bolt fastening 1,960
980 15 6,000 2,450 Bolt fastening 4,900 40 1.0 1.0 50 80 2,450 4,900 11,802 0.475×10-3 0.953×10-2 19.5
Through-hole bolt fastening 3,430
1,960 15 6,000 4,900 Bolt fastening 9,800 30 1.0 1.0 50 80 8,820 17,640 31,455 1.39×10-3 1.94×10-2 55.6
Through-hole bolt fastening 7,350
3,136 15 6,000 7,840 15,680 25 1.0 1.0 50 85 20,580 39,200 57,087 0.518×10-2 0.405×10-1 79.5
4,900 15 6,000 12,250 24,500 20 1.0 1.0 50 80 34,300 78,400 82,970 0.996×10-2 1.014×10-1 154
 
4. The allowable torque will vary according to the thrust load. Please confirm by the allowable moment line diagram.
5. For moment stiffness and torsion stiffness, please refer to the inclination angle and torsion angle calculation.
6. Rated torque refers to the torque value reflecting the rated life at rated output speed, not the data showing the upper limit of load. Please refer to the glossary (p.81) and product selection flow chart (p.82).
7. The above specifications are obtained according to the company’s evaluation method. Please confirm that the product meets the use conditions of carrying real aircraft before use.
8. When the radial load is within dimension B, please use it within the allowable radial load range.

Condition Monitoring of Cyclone Gearboxes

Whether you’re considering using a cycloidal gearbox in your home, office, or garage, you’ll want to make sure it’s made of quality material. You also want to make sure it’s designed properly, so it won’t be damaged by vibrations.helical gearbox

Planetary gearboxes

Compared to cycloidal gearboxes, planetary gearboxes are lighter and more compact, but they lack the precision and durability of the former. They are better suited for applications with high torque or speed requirements. For this reason, they are usually used in robotics applications. But, cycloidal gearboxes are still better for some applications, including those involving shock loads.
There are many factors that affect the performance of gearboxes during production. One of these is the number of teeth. In the case of planetary gearboxes, the number of teeth increases with the number of planets. The number of teeth is reduced in cycloidal gearboxes, which results in higher transmission ratios. These gearboxes also have lower breakaway torques, which means that they can be controlled more easily by the user.
A cycloid gearbox is comprised of three main parts: the ring gear, the sun gear, and the input shaft. The ring gear is fixed in the gearbox, while the sun gear transmits the rotation to the planet gears. The input shaft transfers motion to the sun gear, which in turn transmits it to the output shaft. The output shaft has a larger torque than the input shaft.
Cycloid gears have better torsional stiffness, lower wear, and lower Hertzian contact stress. However, they are also larger in size and require highly accurate manufacturing. Cycloid gears can be more difficult to manufacture than involute gears, which require large amounts of precision.
Cycloid gears can offer transmission ratios up to 300:1, and they can do this in a small package. They also have lower wear and friction, which makes them ideal for applications that require a high transmission ratio.
Cycloid gearboxes are usually equipped with a backlash of about one angular minute. This backlash provides the precision and control necessary for accurate movement. They also provide low wear and shock load capacity.
Planetary gearboxes are available in single and two-stage designs, which increase in length as stages are added. In addition to the two stages, they can be equipped with an optional output bearing, which takes up mounting space. In some applications, a third stage is also available.

Involute gears

Generally, involute gears are more complex to manufacture than cycloidal gears. For example, an involute gear tooth profile has a single curve while a cycloidal gear tooth profile has two curves. In addition, the involute curve is not within the base circle.
The involute curve is a very important component of a gear tooth and it can significantly influence the quality of contact meshing between teeth. Various works have been done on the subject, mainly focusing on the operating principles. In addition, the most important characteristic of the double-enveloping cycloid drive is its double contact lines between the meshing tooth pairs.
Cycloid gears are more powerful, less noisy, and last longer than involute gears. They also require less manufacturing operations during production. However, cycloid gears are more expensive than involute gears. Involute gears are more commonly used in linear motions while cycloid gears are used for rotary motions.
Although cycloid gears are more technically advanced, involute gears have the superior quality and are more aesthetically pleasing. Cycloid gears are used in various industrial applications such as pumps and compressors. They are also widely used in the watch industry. Nevertheless, involute gears have not yet replaced cycloid gears in the watch industry.
The cycloid disc has a number of pins around its outer edge, while an involute gear has only a single curve for the teeth. In addition, cycloid gears have a more robust and reliable design. Involute gears, on the other hand, have a cheaper rack cutter and less expensive involute teeth.
The cycloid disc’s transmission accuracy is about 98.5%, while the ring gear’s transmission accuracy is about 96%. The cycloid disc’s rotational velocity has a magnitude of 3 rad/s. A small change in the center distance does not affect the transmission accuracy. However, rotational velocity fluctuation can affect the transmission accuracy.
Cycloid gears also have the cycloid gear disc’s rotational velocity. The disc has N lobes. However, the cycloid gear disc’s transmission accuracy is still not perfect. This is because of the large rotational angles between the lobes. This also makes it difficult to manufacture.helical gearbox

Vibrations

Using modern techniques for vibration diagnostics and data-driven methods, this article presents a new approach to condition monitoring of cycloidal gearboxes. This approach focuses on detecting the root cause of gearbox failure. The article aims to provide a unified approach to gear designers.
A cycloidal gearbox is a high-precision gearbox that is used in heavy-duty machines. It has a large reduction ratio, which makes it necessary to have a very large input speed. Cycloid gears have high accuracy, but they are susceptible to vibration issues. In this article, the authors describe how a cycloidal gearbox works and how vibrations are measured. They also show how this gearbox can be used to detect faults.
The gearbox is used in positioners, multi-axis robots, and heavy-duty machines. The main characteristics of this gearbox are the high accuracy, the overload capacity, and the large reduction ratio.
There is little documentation on vibrations and condition monitoring of cycloidal gearboxes. The authors describe their approach to the problem, using a cycloidal gearbox and a testing bench. Their approach involves measuring the frequency of the gearbox with different input speeds.
The results show a good separation between the healthy and damaged states. Fault frequencies show up in the lower orders of frequencies. Faults can be detected using binning, which eliminates the need for a tachometer. In addition, binning is combined with Principal Component Analysis to determine the state of the gearbox.
This method is compared to traditional techniques. In addition, the results show how binning can be used to calculate the defect frequencies of the bearings. It is also used to determine the frequencies of the components.
The signals from the test bench are acquired using four sensors. These sensors are medium sensitivity 100 mV/g accelerometers. The signals are then processed using different signal processing techniques. The results show that the vibration signals are correlated with the internal motion of the gearbox. This information is used to identify the internal frequency of the transmission.
The frequency analysis of vibration signals is performed in cyclostationary and noncyclostationary conditions. The signals are then analyzed to determine the magnitude of the gear meshing frequency.helical gearbox

Design

Using precision gearboxes, servomotors can now control heavy loads at high speed. Unlike cam indexing devices, cycloidal gears provide extremely accurate positioning and high torque. They also provide excellent torsional stiffness and shock load capacity.
Cycloid gears are specially designed to minimize vibration at high RPM. Unlike involute gears, they are not stacked, which reduces friction and forces experienced by each tooth. In addition, cycloidal gears have lower Hertzian contact stress.
Cycloid gears are often used in multi-axis robots for positioners. They can provide transmission ratios as high as 300:1 in a compact package. They are also used in first joints in heavy machines. However, they require extremely accurate manufacturing. They are also more difficult to produce than involute gears.
A cycloidal gearbox is a type of planetary gearbox. Cycloid gears are specially designed for high gear ratios. They also have the ability to provide a large reduction ratio in a single stage. They are increasingly used in first joints in heavy machines. They are also becoming more common in robotics.
In order to achieve a large reduction ratio, the input speed of the gear must be very high. Generally, the input speed is between 500 rpm and 4500 rpm. However, in some cases, the input speed may be lower.
A cycloid is formed by rolling a rolling circle on a base circle. The ratio between the rolling circle diameter and the base circle diameter determines the shape of the cycloid. A hypocycloid is formed by rolling primarily on the inside of the base circle, while an epicycloid is formed by rolling primarily on the outside of the base circle.
Cycloid gears have a very small backlash, which minimizes the forces experienced by each tooth. These gears also have a good torsional stiffness, low friction, and shock load capacity. They also provide the best positioning accuracy.
The cycloidal gearbox was designed and built at Radom University. The design was based on three different cycloidal gears. The first pair had the external profile at the nominal dimension, while the second pair had the profile minus tolerance. The load plate had threaded screw holes arranged 15 mm away from the center.
China High Torque Hollow Shaft Reducer Compact RV Cycloidal Pin Wheel Gearbox for Robot Joints Nabtesco RV Gearbox     with high quality China High Torque Hollow Shaft Reducer Compact RV Cycloidal Pin Wheel Gearbox for Robot Joints Nabtesco RV Gearbox     with high quality
editor by czh 2023-01-15