China 6mm Micro Planetary Gearbox with Ratio 96: 1 Gear Motor gearbox definition

Product Description

6mm Micro Planetary Gearbox With Ratio ninety six:1
 

Merchandise Description

 

diameter 6mm
motor DC brush motor
daily life time 200 several hours
functioning temperature -forty to 95ºC
tolerance <0.3mm
Suited for Robotic, Hair roller, Respirator, Computerized door & window, Monitoring gear, and etc.
OSD Language English, French, German, Italian, Russian, Spanish, Portuguese, Dutch, Greek, Japan, Korean
The simple specs for reference only, technical specs can be tailored.

Dependability Take a look at
 
* Sounds Check
* Drinking water-proof Examination
* Daily life Test
* Effect Test
* Storage Take a look at
* Salt Spray Take a look at
* Environmental Relevant Compound.
 
Specification

Model Application Parameters Rated Torque of Equipment Box Instant Torque of Gear Box Gear Ratio Gear Box Size
L1
Rated At No Load At Rated Load Overall Size
L
Voltage Velocity Current Velocity Recent Torque
VDC rpm mA rpm mA gf.cm mN.m mm gf.cm gf.cm mm
ZWMD016017-six nine. 1225 ninety five 1083 one hundred sixty five 24 2.4 34.2 1000 ten thousand 6 11.five
ZWMD016017-16 9. 460 a hundred and five 406 one hundred sixty five fifty one 5. 37.five 2500 ten thousand 16 14.8
ZWMD016017-24 9. 306 one zero five 271 one hundred sixty five 77 7.5 2500 ten thousand 24
ZWMD016017-36 nine. 204 one zero five 181 165 one hundred fifteen 11.3 2000 ten thousand 36
ZWMD016017-sixty four 9. a hundred and fifteen a hundred and fifteen 102 one hundred sixty five a hundred thirty five thirteen.two 40.eight 3500 10000 sixty four 18.1
ZWMD016017-ninety six 9. 77 a hundred and fifteen sixty eight one hundred sixty five 203 19.9 3500 ten thousand ninety six
ZWMD016017-a hundred and forty four 9. fifty one a hundred and fifteen 45 a hundred sixty five 304 29.eight 3500 ten thousand one hundred forty four
ZWMD016017-216 nine. 34 115 thirty one hundred sixty five 456 forty four.7 3000 10000 216
ZWMD016017-256 nine. 29 a hundred and fifteen twenty five one hundred seventy 405 39.seven forty four.1 5000 ten thousand 256 21.4

previously mentioned requirements just for reference and customizable according to specifications.Integrated Drive Control Module.

You should allow us know your needs and we will provide you with micro transmission options.

Second Drawing

In depth Photographs

 

 

Software

Wise wearable devices   watch,VR,AR,XR and and many others.
House application kitchen area appliances, sewing devices, corn popper, vacuum cleaner, yard tool, sanitary ware, window curtain, clever closestool, sweeping robotic, electrical power seat, standing desk, electric powered couch, Television, computer, treadmill, spyhole, cooker hood, electrical drawer, electric powered mosquito internet, clever cupboard, intelligent wardrobe, automated soap dispenser, UV infant bottle sterilizer, lifting hot pot cookware, dishwasher, washing machine, food breaking equipment, dryer, air conditioning, dustbin, coffee equipment, whisk,sensible lock,bread maker,Window cleansing robotic and and so on.
interaction equipment 5G base station,online video conference,cellular mobile phone and and many others.
Place of work automation equipments   scanners, printers, multifunction devices duplicate equipment, fax (FAX paper cutter), personal computer peripheral, bank equipment,  screen, lifting socket,  exhibit,notebook Pc and and so forth.
Automotive products  conditioning damper actuator, auto DVD,doorway lock actuator, retractable rearview mirror, meters, optic axis management gadget, head gentle beam level adjuster, vehicle drinking water pump, vehicle antenna, lumbar assist, EPB, car tail gate electrical putter, HUD, head-up show, automobile sunroof, EPS, AGS, auto window, head restraint, E-booster, vehicle seat, vehicle charging station and and so on.
Toys and models  radio handle product, automatic cruise management, trip-on toy, instructional robotic, programming robotic, medical robot, computerized feeder, smart constructing blocks, escort robot and and many others.
Health care equipments  blood force meter, breath machine, healthcare cleansing pump, health-related mattress, blood stress screens, healthcare ventilator, surgical staplers, infusion pump, dental instrument, self-clotting cutter, wound cleansing pump for orthopedic surgery,electronic cigarette, eyebrow pencil,fascia gun, , surgical robot,laboratory automation and and many others.
Industrials   flow management valves, seismic screening,automated reclosing,Agricultural unmanned aerial automobile,computerized feeder ,clever categorical cabinet and etc.
Electric powered power tools  electric powered drill, screwdriver,backyard device and and many others.
Precision instruments  optics instruments,automated vending equipment, wire-stripping machine and and so on.
Personal treatment tooth brush, hair clipper, electric powered shaver, massager, vibrator, hair dryer, rubdown device, scissor hair device, foot grinder,anti-myopia pen, facial attractiveness gear, hair roller,Electrical threading knife,Power Perfect PORE, Puff device,eyebrow tweezers and and so forth.
Customer electronics digital camera, cell mobile phone,digital digicam, automated retracting unit,camcorder,  kinescope DVD,headphone stereo, cassette tape recorder, bluetooth earbud charging case, turntable, pill,UAV(unmanned aerial automobile),surveillance digicam,PTZ camera, rotating wise speaker and and so on.
robots academic robotic, programming robot, medical robot, escort robot and and many others.

Company Profile

HangZhou CZPT Machinery & Electronics Co., Ltd was recognized in 2001,We give the complete generate solution for customers from style, tooling fabrication, parts producing and assembly. 

Workshop

Testing Equipment

1) Aggressive Positive aspects

  • one) Competitive Benefits
    19+12 months encounter in production motor gearbox
    We provide technical support from r&d, prototype, screening, assembly and serial creation , ODM &OEM
    Competitive Price tag
    Product Efficiency: Lower sound, High efficiency, Extended lifespan
    Prompt Supply: fifteen doing work times soon after payment
    Little Orders Accepted

 2) Primary Goods

  • Precision reduction gearbox and its diameter:3.4mm-38mm,voltage:1.5-24V,power: .01-40W,output velocity:5-2000rpm and output torque:1. gf.cm -50kgf.cm,

  • Personalized worm and equipment transmission equipment
  • Exact electromechanical movement module
  • Precise part and assembly of plastic and metallic powder injection.

 

Our Solutions

  • ODM & OEM
  • Gearbox design and improvement
  • Relevant engineering help
  • Micro push gearbox personalized solution

Packaging & Shipping and delivery

one) Packing Specifics

packed in nylon to start with, then carton, and then reinforced with wood situation for outer packing.
Or in accordance to client’s prerequisite.

two) Shipping and delivery Information

samples will be delivered inside of ten times
batch get foremost time in accordance to the actual scenario.

 

Certifications

Certifications

We Have passed to hold ISO9001:2015(CN11/3571),ISO14001:2004(U006616E0153R3M), ISO13485:2016(CN18/42018) and IATF16949:2016(CN11/3571.01).

and far more…

 

FAQ

FAQ

one. Can you make the gearbox with customized specifications?
Sure. We have layout and development group, also a wonderful phrase of engineers, every single of them have
several work several years knowledge.

two.Do you supply the samples?
Yes. Our organization can give the samples to you, and the shipping time is about 5-15days in accordance to the specification of gearbox you need to have.

3.What is your MOQ?
Our MOQ is 2000pcs. But at the commencing of our organization, we accept tiny order.

4. Do you have the item in inventory?
I am sorry we donot have the item in inventory, All merchandise are produced with orders.

5. Do you supply technologies assist?
Yes. Our organization have design and style and development group, we can provide engineering assist if you
need to have.

6.How to ship to us?
We will ship the products to you in accordance to the DHL or UPS or FEDEX etc account you give. 

7.How to pay the funds?
We acknowledge T/T in advance. Also we have distinct lender account for receiving money, like US dollors or RMB and so on.

eight. How can I know the product is appropriate for me?
Frist, you require to offer us the far more particulars info about the item. We will recommend the product to you according to your prerequisite of specification. Right after you verify, we will prepare the samples to you. also we will offer some excellent advancements according to your merchandise use.

9. Can I appear to your firm to visit?
Yes, you can come to our business to pay a visit to at anytime, and welcome to go to our organization.

10. How do contact us ?
 Please send an inquiry

US $6-8
/ Piece
|
1,000 Pieces

(Min. Order)

###

Application: Motor, Toy, Car, Medical Equipment
Function: Change Drive Torque, Speed Reduction
Layout: Customize
Hardness: Hardened Tooth Surface
Installation: Customize
Step: Customize

###

Customization:

###

diameter 6mm
motor DC brush motor
life time 200 hours
working temperature -40 to 95ºC
tolerance <0.3mm
Suitable for Robot, Hair curler, Respirator, Automatic door & window, Monitoring equipment, and etc.
OSD Language English, French, German, Italian, Russian, Spanish, Portuguese, Dutch, Greek, Japan, Korean
The basic specifications for reference only, specifications can be customized.

###

Model Application Parameters Rated Torque of Gear Box Instant Torque of Gear Box Gear Ratio Gear Box Length
L1
Rated At No Load At Rated Load Overall Length
L
Voltage Speed Current Speed Current Torque
VDC rpm mA rpm mA gf.cm mN.m mm gf.cm gf.cm mm
ZWMD016017-6 9.0 1225 95 1083 165 24 2.4 34.2 1000 10000 6 11.5
ZWMD016017-16 9.0 460 105 406 165 51 5.0 37.5 2500 10000 16 14.8
ZWMD016017-24 9.0 306 105 271 165 77 7.5 2500 10000 24
ZWMD016017-36 9.0 204 105 181 165 115 11.3 2000 10000 36
ZWMD016017-64 9.0 115 115 102 165 135 13.2 40.8 3500 10000 64 18.1
ZWMD016017-96 9.0 77 115 68 165 203 19.9 3500 10000 96
ZWMD016017-144 9.0 51 115 45 165 304 29.8 3500 10000 144
ZWMD016017-216 9.0 34 115 30 165 456 44.7 3000 10000 216
ZWMD016017-256 9.0 29 115 25 170 405 39.7 44.1 5000 10000 256 21.4

###

Smart wearable devices   watch,VR,AR,XR and etc.
Household application kitchen appliances, sewing machines, corn popper, vacuum cleaner, garden tool, sanitary ware, window curtain, intelligent closestool, sweeping robot, power seat, standing desk, electric sofa, TV, computer, treadmill, spyhole, cooker hood, electric drawer, electric mosquito net, intelligent cupboard, intelligent wardrobe, automatic soap dispenser, UV baby bottle sterilizer, lifting hot pot cookware, dishwasher, washing machine, food breaking machine, dryer, air conditioning, dustbin, coffee machine, whisk,smart lock,bread maker,Window cleaning robot and etc.
communication equipment 5G base station,video conference,mobile phone and etc.
Office automation equipments   scanners, printers, multifunction machines copy machines, fax (FAX paper cutter), computer peripheral, bank machine,  screen, lifting socket,  display,notebook PC and etc.
Automotive products  conditioning damper actuator, car DVD,door lock actuator, retractable rearview mirror, meters, optic axis control device, head light beam level adjuster, car water pump, car antenna, lumbar support, EPB, car tail gate electric putter, HUD, head-up display, vehicle sunroof, EPS, AGS, car window, head restraint, E-booster, car seat, vehicle charging station and etc.
Toys and models  radio control model, automatic cruise control, ride-on toy, educational robot, programming robot, medical robot, automatic feeder, intelligent building blocks, escort robot and etc.
Medical equipments  blood pressure meter, breath machine, medical cleaning pump, medical bed, blood pressure monitors, medical ventilator, surgical staplers, infusion pump, dental instrument, self-clotting cutter, wound cleaning pump for orthopedic surgery,electronic cigarette, eyebrow pencil,fascia gun, , surgical robot,laboratory automation and etc.
Industrials   flow control valves, seismic testing,automatic reclosing,Agricultural unmanned aerial vehicle,automatic feeder ,intelligent express cabinet and etc.
Electric power tools  electric drill, screwdriver,garden tool and etc.
Precision instruments  optics instruments,automatic vending machine, wire-stripping machine and etc.
Personal care tooth brush, hair clipper, electric shaver, massager, vibrator, hair dryer, rubdown machine, scissor hair machine, foot grinder,anti-myopia pen, facial beauty equipment, hair curler,Electric threading knife,POWER PERFECT PORE, Puff machine,eyebrow tweezers and etc.
Consumer electronics camera, mobile phone,digital camera, automatic retracting device,camcorder,  kinescope DVD,headphone stereo, cassette tape recorder, bluetooth earbud charging case, turntable, tablet,UAV(unmanned aerial vehicle),surveillance camera,PTZ camera, rotating smart speaker and etc.
robots educational robot, programming robot, medical robot, escort robot and etc.
US $6-8
/ Piece
|
1,000 Pieces

(Min. Order)

###

Application: Motor, Toy, Car, Medical Equipment
Function: Change Drive Torque, Speed Reduction
Layout: Customize
Hardness: Hardened Tooth Surface
Installation: Customize
Step: Customize

###

Customization:

###

diameter 6mm
motor DC brush motor
life time 200 hours
working temperature -40 to 95ºC
tolerance <0.3mm
Suitable for Robot, Hair curler, Respirator, Automatic door & window, Monitoring equipment, and etc.
OSD Language English, French, German, Italian, Russian, Spanish, Portuguese, Dutch, Greek, Japan, Korean
The basic specifications for reference only, specifications can be customized.

###

Model Application Parameters Rated Torque of Gear Box Instant Torque of Gear Box Gear Ratio Gear Box Length
L1
Rated At No Load At Rated Load Overall Length
L
Voltage Speed Current Speed Current Torque
VDC rpm mA rpm mA gf.cm mN.m mm gf.cm gf.cm mm
ZWMD016017-6 9.0 1225 95 1083 165 24 2.4 34.2 1000 10000 6 11.5
ZWMD016017-16 9.0 460 105 406 165 51 5.0 37.5 2500 10000 16 14.8
ZWMD016017-24 9.0 306 105 271 165 77 7.5 2500 10000 24
ZWMD016017-36 9.0 204 105 181 165 115 11.3 2000 10000 36
ZWMD016017-64 9.0 115 115 102 165 135 13.2 40.8 3500 10000 64 18.1
ZWMD016017-96 9.0 77 115 68 165 203 19.9 3500 10000 96
ZWMD016017-144 9.0 51 115 45 165 304 29.8 3500 10000 144
ZWMD016017-216 9.0 34 115 30 165 456 44.7 3000 10000 216
ZWMD016017-256 9.0 29 115 25 170 405 39.7 44.1 5000 10000 256 21.4

###

Smart wearable devices   watch,VR,AR,XR and etc.
Household application kitchen appliances, sewing machines, corn popper, vacuum cleaner, garden tool, sanitary ware, window curtain, intelligent closestool, sweeping robot, power seat, standing desk, electric sofa, TV, computer, treadmill, spyhole, cooker hood, electric drawer, electric mosquito net, intelligent cupboard, intelligent wardrobe, automatic soap dispenser, UV baby bottle sterilizer, lifting hot pot cookware, dishwasher, washing machine, food breaking machine, dryer, air conditioning, dustbin, coffee machine, whisk,smart lock,bread maker,Window cleaning robot and etc.
communication equipment 5G base station,video conference,mobile phone and etc.
Office automation equipments   scanners, printers, multifunction machines copy machines, fax (FAX paper cutter), computer peripheral, bank machine,  screen, lifting socket,  display,notebook PC and etc.
Automotive products  conditioning damper actuator, car DVD,door lock actuator, retractable rearview mirror, meters, optic axis control device, head light beam level adjuster, car water pump, car antenna, lumbar support, EPB, car tail gate electric putter, HUD, head-up display, vehicle sunroof, EPS, AGS, car window, head restraint, E-booster, car seat, vehicle charging station and etc.
Toys and models  radio control model, automatic cruise control, ride-on toy, educational robot, programming robot, medical robot, automatic feeder, intelligent building blocks, escort robot and etc.
Medical equipments  blood pressure meter, breath machine, medical cleaning pump, medical bed, blood pressure monitors, medical ventilator, surgical staplers, infusion pump, dental instrument, self-clotting cutter, wound cleaning pump for orthopedic surgery,electronic cigarette, eyebrow pencil,fascia gun, , surgical robot,laboratory automation and etc.
Industrials   flow control valves, seismic testing,automatic reclosing,Agricultural unmanned aerial vehicle,automatic feeder ,intelligent express cabinet and etc.
Electric power tools  electric drill, screwdriver,garden tool and etc.
Precision instruments  optics instruments,automatic vending machine, wire-stripping machine and etc.
Personal care tooth brush, hair clipper, electric shaver, massager, vibrator, hair dryer, rubdown machine, scissor hair machine, foot grinder,anti-myopia pen, facial beauty equipment, hair curler,Electric threading knife,POWER PERFECT PORE, Puff machine,eyebrow tweezers and etc.
Consumer electronics camera, mobile phone,digital camera, automatic retracting device,camcorder,  kinescope DVD,headphone stereo, cassette tape recorder, bluetooth earbud charging case, turntable, tablet,UAV(unmanned aerial vehicle),surveillance camera,PTZ camera, rotating smart speaker and etc.
robots educational robot, programming robot, medical robot, escort robot and etc.

What Is a Gearbox?

A gearbox is the mechanical system of an automobile that allows a vehicle to change gear smoothly. This arrangement of gears is highly complex, which helps to provide a smooth gear change. In this article, we will explore some of the different types of gearboxes, including the Epicyclic gearbox, the Coaxial helical gearbox, and the Extruder helical gearing. These are three of the most common types of gearboxes used in automobiles.
gearbox

Gearboxes

Gearboxes help drivers choose the appropriate gear for the conditions. A lower gear produces the least speed, while a higher gear gives the maximum torque. The number of gears used in a gearbox varies to meet different demands on the road and load. Short gearing provides maximum torque, while tall gearing offers higher top speeds. These features combine to improve the driveability of a vehicle. But what is a gearbox?
The gearbox has a slew of components, including the bearings and seals. Among these components is the gearbox, which is subjected to wear and tear due to metal-to-metal contact. As a result, gearboxes require close monitoring. Various tests are used to assess the condition of gears, such as corrosion and wear. Proactive tests emphasize wear, contamination, and oil condition. However, there are also proactive tests, such as the ferrous density test and the AN test, which monitor additive depletion and abnormal wear.
The separating force is a key factor for the design of a gearbox. The primary radial measurement point should be oriented to monitor normal forces. The secondary measurement point should be located in the opposite direction of rotation from the primary radial measurement point. The separating force generated by a helical gear set is called tangential force. The primary and secondary radial measurement points should be positioned so as to provide information about both normal and tangential forces.
Manual gearboxes are often manual. The driver can control the synchromesh by using a selector rod. This rod moves the synchromesh to engage the gear. Reverse gears are not synchromesh because they are used only when the vehicle is at a standstill. In older cars, the first gear often lacked synchromesh due to cost or lack of torque. Drivers could still use first gear with a double-declutch.

Coaxial helical gearbox

The R series rigid tooth flank helical gearbox features high versatility and good combination. They have a wide range of motor power and allow for fine classification of transmission ratios. The R series gearbox has several advantages, including high efficiency, long service life, and low vibration. This series of gearbox can be combined with a wide range of reducers and variators. Its size and high performance makes it an ideal choice for applications that require maximum torque and load transfer.
The main feature of a helical gearbox is that it presents a fixed velocity ratio, even if the center gaps are not perfectly set. This is sometimes referred to as the fundamental rule of gearing. A helical gearbox is similar to paper spur gears in terms of radial pitch, since the shafts in the helical gearbox cross at an angle. The center gap of a helical gearbox is the same for both the left and right-handed counterparts.
The EP Series is another popular model of a Coaxial helical gearbox. This series has high torque and a maximum reduction ratio of 25.6:1. It is an ideal choice for the plastic industry, and CZPT offers an extensive range of models. Their center distance ranges from 112 mm to 450 mm. The EP Series has several models with different center distances. In addition to high torque and efficiency, this gearbox has low noise and vibration, and it is easy to assemble and disassemble.
Another type of Coaxial helical gearboxes is the planetary gearbox. They have a high efficiency and power density. Unlike coaxial helical gearboxes, planetary gearboxes have an axis on the same direction as the output shaft. They are easy to integrate into existing drive trains. In addition, they are compact and easy to integrate with existing drive trains. For servo applications, they are another great choice.
gearbox

Epicyclic gearbox

An epicyclic gearbox is a type of automatic gearbox used to drive cars. Its primary advantage is its compact design, and it is more reliable and efficient than manual gearboxes. It is comprised of a sun gear and two planetary gears, encased in a ring gear called the Annulus. This system is useful for drivers who need to shift gears frequently, as they will become tired if the gears are suddenly changed.
An epicyclic gearbox consists of three different types of gears: ring gear, sun gear, and annular ring gear. The ring gear is the outermost gear and has angular-cut teeth on its inner surface. It is used in conjunction with planetary gears to provide high-speed ratios to vehicles. The sun gear also reverses the direction of the output shaft. This helps reduce transmission error.
An epicyclic gearbox uses multiple planets to transfer power between the planets. This type of gearbox is lightweight and features a high power density. This gearbox has several benefits over a standard single-stage parallel axis gearbox, including multiple load paths, unequal load sharing, and phased meshing. Furthermore, epicyclic gearboxes require more complex transmission error optimisation than their counterparts, including more than one stage.
The objective of epicyclic gearbox research is to provide the lowest transmission error possible. The process includes an initial design and detailed specification. The system is defined by its load spectrum and required ratio. Deflections of the elastic mesh are calculated to understand their strength and how much energy the system can handle. Finally, micro-geometric corrections minimize transmission error. These improvements are crucial to the overall efficiency of an epicyclic gearbox.

Extruder helical gearing

The helix in an extruder helical gearing is fixed at an angle, enabling more interaction with the shaft in the same direction as it moves. As a result, the shaft and the bearing are in constant contact for a long period of time. Typically, extruder helical gearing is used in applications where there is low excitement, such as steel, rolling mills, conveyors, and the oil industry. The bevel gear train also plays a role in these applications.
The CZPT AEX extruder drive gear is specifically developed for this specific application. The gears are compact and lightweight and offer exceptional power density and a long service life. These extruder gears are highly reliable, and they can be used in a wide range of applications, including rubber processing, food production, and recycling plants. CZPT offers both standard and custom gearing for your extruder.
Another advantage of helical gearing is its versatility. Since the helical gearing teeth are inclined at a specific angle, they can be adjusted to meet the specific needs of a given application. These gears also have the advantage of eliminating noise and shock from straight teeth. Unlike other gearing types, they are able to achieve a wide range of loads, from small to large. These helical gears are very durable and are the best option for high-load applications.
In addition to this, asymmetric helical gears have increased flexibility, while asymmetrical helical gears have lower flexural stiffness. The ratio of teeth to the shaft has a positive effect on the strength of the gear. Furthermore, asymmetrical helical gears are easier to manufacture. But before you purchase your next extruder gear, make sure you know what you’re getting into.
gearbox

1 speed gearbox

CZPT Group Components produces the one speed gearbox. It has the potential to make cars more efficient and environmentally friendly. The gear ratio of a car’s drivetrain is crucial for reaching maximum power and speed. Typically, a one-speed gearbox delivers a maximum of 200 hp. But the speed at which a car can reach this power must be high to get the full benefit from the electric motor. So, how can a one-speed gearbox improve the speed and torque of a car?
A one-speed gearbox is a mechanical device used to switch between second and third gears. It can include multiple gear sets, such as a shared middle gear for switching between second and third gears. It can also have an intermediate gear set that represents a switchable gear in both partial transmissions. The invention also includes a mechanism that makes it easier to change gears. The patent claims are detailed below. A typical one-speed gearbox may include two parts.
Generally, a one-speed gearbox will have up to seven forward gears, with each of these corresponding to a different speed. A one-speed gearbox can have five different gear sets and five different gear levels. It can have synchronized gear sets or last-shelf gear sets. In either case, the gears are arranged in a way that maximizes their efficiency. If the gears are placed on opposite sides of a car, the transmission may be a two-speed one.
CZPT Transmission specializes in the production of high-speed gearboxes. The company’s Milltronics HBM110XT gearbox machine is the perfect tool for this job. This machine has a large working table and a heavy-duty load capacity, making it a versatile option for many kinds of applications. There are also a wide variety of CZPT gearboxes for the automotive industry.

China 6mm Micro Planetary Gearbox with Ratio 96: 1 Gear Motor     gearbox definition		China 6mm Micro Planetary Gearbox with Ratio 96: 1 Gear Motor     gearbox definition
editor by czh 2022-12-09