China Custom 12mm N20 6V DC Worm Gear Motor for electr door lock near me supplier

1. Structure: Permanent magnet dc motor with worm gearbox
2. Motor Size: Dia12*Flat10*L15mm
3. Shaft Dia: 3mm with D-shape or other shape as request after evaluation
4. Certification: ISO9001, ROHS
5. Endplay: 0.5mm Max
6. Rotation: CW/CCW reversible
7. Voltage: 6V DC
8.No load : 50RPM 50mA Max
9. On load: 0.6kg.cm 40RPM 100mA Max
10. At stall: 2kg.cm 202mA
11. longer or shorter version motor, coreless motor also can be attached to the same gearbox
12. Encorder, gear, worm, cables etc. can be available
Products Show More Products 1218 N20 Worm Gearmotor 3246 Worm Geamotor with Encoder 3249 Worm Gearmotor 4058 Worm Gearmotor 5037 Worm Gearmotor 5882 Worm Gearmotor 52S Worm Gearmotor R59R Worm Gearmotor R63L Worm Gearmotor R63R Worm Gearmotor with Encoder R76L Hollow Shaft Gearmotor R76R Hollow Shaft Gearmotor R76R Worm Gearmotor R76L Gearmotor With Encoder R76R Worm Gearmotor R76R Wprm Gearmotor R90R Worm Gearmotor 63S Wrom Gearmotor 90L Worm Gearmotor 76 Worm Gearmotor 76S Worm Gearmotor Our Service FlexibleAll of our products are made based on different requirements by choossing suitable materials and design.Except the product itself, we also provide OEM service and related accessories for your convenience.
Professional40+ engineers with more than 20 years experience in motor industry.We provide our clients professional service and high quality products.
SwiftWe ensure your inquiry and query before and after sales can be handled within 24 hours except the weekends and holidays.
Our Company Factory450+ Experienced staff WorkshopClean and tidy production lines
WarehouseManage the warehouse based on FIFO
Team40+ experienced engineer and 10+ professional sales
FAQ Q: What kind products you can provide? A: Our main products are AC Motors, DC Motors, Gear Motors, Stepper Motors, Synchronous Motors and Generators(dynamos). We also have our own plastic injection and metal stamping and die casting factories which enables us to provide plastic parts and metal parts and OEM service for whole products including packing. Q: Can I have a motor with 12V or for XXX application? A: Please share more details like the speed, torque, motor size. If you can send us a picture with marked dimension or detailed datasheet, that’ll be great. We can’t tell what kind motor you are looking for just by voltage and application. Q: Can you share the lifetime of the motor?A: For all of our motors, they are custom made based on different requirements, WPDZ reduction box speed reducer gearbox so there is no standard lifetime. And lifetime is also related how you use the motor under which load. Normally our client will provide lifetime requirements and noise level etc. in the beginning then when we arrange samples, we will take those into consideration to choose suitable motor and materials to reach. Client will perform lifetime testing in their lab and their order will be arranged based on the passed samples. Q: Can you provide accessories like cables, connector, gear, encoder etc.? A:Yes, we can. If those are not standard, extra cost for moulding might be needed. Q: What kind encoder you can provide? What is the resolution? A: We can provide magnetic and optical encoder based on different resolution requirements(3PPR, 12PPR, 13PPR, 100PPR etc.). Extra cost for pcba might be needed if not existed. Q: What kind certifications you can provide? A: ROHS is the basic certification. For others, part of them we can provide REACH, CE etc. For others, extra cost might be needed if we need to provide. Q: Can I place a credit order via Alibaba directly without commnication with you? A: I am afraid NOT except for those online wholesales products which you can see specific price for certain range. We are not retailer and if there is no further order which can meet our MOQ, we can’t provide any sample even you pay. Q: How long is your delivery time?A: For samples, 5~25days and for orders, 20-35 days depends on quantity and requirements. Q: Do you provide samples ? Is it free or not?A: Yes, Long Durability 100% quality Tested CV Joint Drive Shafts For Wholesale Wheel Hub Bearing CV Joint CELICA 25-56-27 but we only provide samples for clients can meet our MOQ for further order after sample approval.Some of them are free and the others are not. Freight will be paid by the buyer. Q: Can I get a spec before sample arrangement? A: For all of our motors, we customerize them based on different requirements. We don’t make standard ones and put then in warehouse then sell to clients. Spec is available after sample making. Sometimes if we arranged similar ones before, we can provide for reference. For others, we can only provide the outline.Q: How can we start from samples?A: Our sales will communicate with you about the technical requirements and also quantity, application etc. After we agree on price and also the performance requirements , we will send you PI or establish an order via Alibaba. Once get your payments, we will arrange the sample making. Q: Can you arrange the delivery via our account?A: Sure. But if you don’t have any courier account, we can also check the freight here and add that part in the PI. Q: Can I pay via Paypal, Credit card or West Union?A: Yes, we can accept those ways. Q: What is your terms of payment ?A: Payment=5000USD, 30% T/T in advance ,balance before shippment.If you have any other question, Factory Direct Sale Outer Cv Joint TO-830 High Quality Wholesale Drive Shaft pls feel free to contact us as below:

How to Choose the Right Worm Shaft

You might be curious to know how to choose the right Worm Shaft. In this article, you will learn about worm modules with the same pitch diameter, Double-thread worm gears, and Self-locking worm drive. Once you have chosen the proper Worm Shaft, you will find it easier to use the equipment in your home. There are many advantages to selecting the right Worm Shaft. Read on to learn more.
worm shaft

Concave shape

The concave shape of a worm’s shaft is an important characteristic for the design of a worm gearing. Worm gearings can be found in a wide range of shapes, and the basic profile parameters are available in professional and firm literature. These parameters are used in geometry calculations, and a selection of the right worm gearing for a particular application can be based on these requirements.
The thread profile of a worm is defined by the tangent to the axis of its main cylinder. The teeth are shaped in a straight line with a slightly concave shape along the sides. It resembles a helical gear, and the profile of the worm itself is straight. This type of gearing is often used when the number of teeth is greater than a certain limit.
The geometry of a worm gear depends on the type and manufacturer. In the earliest days, worms were made similar to simple screw threads, and could be chased on a lathe. During this time, the worm was often made with straight-sided tools to produce threads in the acme plane. Later, grinding techniques improved the thread finish and reduced distortions resulting from hardening.
When a worm gearing has multiple teeth, the pitch angle is a key parameter. A greater pitch angle increases efficiency. If you want to increase the pitch angle without increasing the number of teeth, you can replace a worm pair with a different number of thread starts. The helix angle must increase while the center distance remains constant. A higher pitch angle, however, is almost never used for power transmissions.
The minimum number of gear teeth depends on the angle of pressure at zero gearing correction. The diameter of the worm is d1, and is based on a known module value, mx or mn. Generally, larger values of m are assigned to larger modules. And a smaller number of teeth is called a low pitch angle. In case of a low pitch angle, spiral gearing is used. The pitch angle of the worm gear is smaller than 10 degrees.
worm shaft

Multiple-thread worms

Multi-thread worms can be divided into sets of one, two, or four threads. The ratio is determined by the number of threads on each set and the number of teeth on the apparatus. The most common worm thread counts are 1,2,4, and 6. To find out how many threads you have, count the start and end of each thread and divide by two. Using this method, you will get the correct thread count every time.
The tangent plane of a worm’s pitch profile changes as the worm moves lengthwise along the thread. The lead angle is greatest at the throat, and decreases on both sides. The curvature radius r” varies proportionally with the worm’s radius, or pitch angle at the considered point. Hence, the worm leads angle, r, is increased with decreased inclination and decreases with increasing inclination.
Multi-thread worms are characterized by a constant leverage between the gear surface and the worm threads. The ratio of worm-tooth surfaces to the worm’s length varies, which enables the wormgear to be adjusted in the same direction. To optimize the gear contact between the worm and gear, the tangent relationship between the two surfaces is optimal.
The efficiency of worm gear drives is largely dependent on the helix angle of the worm. Multiple thread worms can improve the efficiency of the worm gear drive by as much as 25 to 50% compared to single-thread worms. Worm gears are made of bronze, which reduces friction and heat on the worm’s teeth. A specialized machine can cut the worm gears for maximum efficiency.

Double-thread worm gears

In many different applications, worm gears are used to drive a worm wheel. These gears are unique in that the worm cannot be reversed by the power applied to the worm wheel. Because of their self-locking properties, they can be used to prevent reversing motion, although this is not a dependable function. Applications for worm gears include hoisting equipment, elevators, chain blocks, fishing reels, and automotive power steering. Because of their compact size, these gears are often used in applications with limited space.
Worm sets typically exhibit more wear than other types of gears, and this means that they require more limited contact patterns in new parts. Worm wheel teeth are concave, making it difficult to measure tooth thickness with pins, balls, and gear tooth calipers. To measure tooth thickness, however, you can measure backlash, a measurement of the spacing between teeth in a gear. Backlash can vary from one worm gear to another, so it is important to check the backlash at several points. If the backlash is different in two places, this indicates that the teeth may have different spacing.
Single-thread worm gears provide high speed reduction but lower efficiency. A multi-thread worm gear can provide high efficiency and high speed, but this comes with a trade-off in terms of horsepower. However, there are many other applications for worm gears. In addition to heavy-duty applications, they are often used in light-duty gearboxes for a variety of functions. When used in conjunction with double-thread worms, they allow for a substantial speed reduction in one step.
Stainless-steel worm gears can be used in damp environments. The worm gear is not susceptible to rust and is ideal for wet and damp environments. The worm wheel’s smooth surfaces make cleaning them easy. However, they do require lubricants. The most common lubricant for worm gears is mineral oil. This lubricant is designed to protect the worm drive.
worm shaft

Self-locking worm drive

A self-locking worm drive prevents the platform from moving backward when the motor stops. A dynamic self-locking worm drive is also possible but does not include a holding brake. This type of self-locking worm drive is not susceptible to vibrations, but may rattle if released. In addition, it may require an additional brake to keep the platform from moving. A positive brake may be necessary for safety.
A self-locking worm drive does not allow for the interchangeability of the driven and driving gears. This is unlike spur gear trains that allow both to interchange positions. In a self-locking worm drive, the driving gear is always engaged and the driven gear remains stationary. The drive mechanism locks automatically when the worm is operated in the wrong manner. Several sources of information on self-locking worm gears include the Machinery’s Handbook.
A self-locking worm drive is not difficult to build and has a great mechanical advantage. In fact, the output of a self-locking worm drive cannot be backdriven by the input shaft. DIYers can build a self-locking worm drive by modifying threaded rods and off-the-shelf gears. However, it is easier to make a ratchet and pawl mechanism, and is significantly less expensive. However, it is important to understand that you can only drive one worm at a time.
Another advantage of a self-locking worm drive is the fact that it is not possible to interchange the input and output shafts. This is a major benefit of using such a mechanism, as you can achieve high gear reduction without increasing the size of the gear box. If you’re thinking about buying a self-locking worm gear for a specific application, consider the following tips to make the right choice.
An enveloping worm gear set is best for applications requiring high accuracy and efficiency, and minimum backlash. Its teeth are shaped differently, and the worm’s threads are modified to increase surface contact. They are more expensive to manufacture than their single-start counterparts, but this type is best for applications where accuracy is crucial. The worm drive is also a great option for heavy trucks because of their large size and high-torque capacity.

China Custom 12mm N20 6V DC Worm Gear Motor for electr door lock  near me supplier China Custom 12mm N20 6V DC Worm Gear Motor for electr door lock  near me supplier