Industrial Power Transmission NRV Series Extension Shaft Mounted Engine 90 Degree Speed Gear Box

Specifiction:

Type:
Worm Gear Speed Reducer

Model:
NRV040 VS

Ratio:
1:7.5,10,15,20,25,30,40,50, Customizable Auto Parts Auto CV Joint Professional Manufacturer Standard Size Drive Shaft CV Joint 60,80,100

Color:
Blue/Silver Or On Customer Request

Material:
Housing: Die-Cast Aluminum Alloy

Worm Gear-Copper-10-3#

Worm-20CrMn Ti with carburizing and quenching, surface harness is 56-62HRC

Shaft-chromium steel-45#

Packing:
Carton and Wooden Case

Bearing:
C&U Bearing

Seal:
NAK SKF

Warranty:
1 Year

Input Power:
0.12KW,0.18KW,0.22KW,0.25KW, New arrival high quality Ce Certification cheap wholesale 4 wheeler electric atvs for adults 0.37KW

Usages:
Industrial Machine: Food Stuff, Ceramics,CHEMICAL,Packing,Dyeing,Woodworking,Glass.

IEC Flange:
56B5,63B5, GJF Brand joint assembly right drive shaft drive for Mazda 6 2003-2009 cv axle joint drive boot C-MZ054A-8H 63B14,71B5,71B14

Lubricant:
Synthetic&Mineral

Allowed radial loading force on output shaft of deducer(N)

The table below is the allowed loading force on the midpoint of output shaft.

When the reducer is with double output shafts,the resultant radial power at the dege of shaft should not
exceed the values specified as in above table.

The max allowed axoal thrust is 1/5 of radial force while the radial force and axial force effected together.

i
n2
RV030
RV040
RV050
RV063
RV075
RV090
RV110
RV130

7.5
186
691
1325
1829
2378
2799
3098
3908
5112

10
140
758
1454
2007
2609
3072
3400
4288
5610

15
94
868
1665
2298
2988
3518
3893
4910
6424

20
70
954
1829
2525
3283
3865
4277
5395
7057

25
56
1033
1981
2735
3556
4187
4633
5844
7645

30
47
1088
2087
2881
3745
4410
4880
6155
8052

40
35
1204
2309
3188
4145
4880
5401
6812
8912

50
28
1296
2485
3431
4461
5252
5812
7331
9590

60
24
1381
2649
3658
4756
5599
6196
7815
15714

80
18
1516
2907
4014
5218
6144
6799
8576
11219

100
14
1638
3142
4338
5639
6639
7348
9268
12124

Process Of An Order:

1.Please check product detailed information above.

A. Model/Size B. Transmission Ratio C. Shaft Direction D. Order Quantity.

2.Our Export Service Team will contact you with a quotation file 3 hours after our team get your enquiry.

3.When you please an order, our team will confirm with you about color, package,method of payment and delivery, CZPT Frameless DC Motor for Robot Application Outrunner and Inrunner Match Hall Sensor Encoder
then a sales contract will be sent to you to confirm.

4.Packing: Carton and Wooden Case.

Welcome To Visit Our Factory – Located in the tourism city – HangZhou -West Lake.

Worm Shafts and Gearboxes

If you have a gearbox, you may be wondering what the best Worm Shaft is for your application. There are several things to consider, including the Concave shape, Number of threads, and Lubrication. This article will explain each factor and help you choose the right Worm Shaft for your gearbox. There are many options available on the market, so don’t hesitate to shop around. If you are new to the world of gearboxes, read on to learn more about this popular type of gearbox.
worm shaft

Concave shape

The geometry of a worm gear varies considerably depending on its manufacturer and its intended use. Early worms had a basic profile that resembled a screw thread and could be chased on a lathe. Later, tools with a straight sided g-angle were developed to produce threads that were parallel to the worm’s axis. Grinding was also developed to improve the finish of worm threads and minimize distortions that occur with hardening.
To select a worm with the proper geometry, the diameter of the worm gear must be in the same unit as the worm’s shaft. Once the basic profile of the worm gear is determined, the worm gear teeth can be specified. The calculation also involves an angle for the worm shaft to prevent it from overheating. The angle of the worm shaft should be as close to the vertical axis as possible.
Double-enveloping worm gears, on the other hand, do not have a throat around the worm. They are helical gears with a straight worm shaft. Since the teeth of the worm are in contact with each other, they produce significant friction. Unlike double-enveloping worm gears, non-throated worm gears are more compact and can handle smaller loads. They are also easy to manufacture.
The worm gears of different manufacturers offer many advantages. For instance, worm gears are one of the most efficient ways to increase torque, while lower-quality materials like bronze are difficult to lubricate. Worm gears also have a low failure rate because they allow for considerable leeway in the design process. Despite the differences between the two standards, the overall performance of a worm gear system is the same.
The cone-shaped worm is another type. This is a technological scheme that combines a straight worm shaft with a concave arc. The concave arc is also a useful utility model. Worms with this shape have more than three contacts at the same time, which means they can reduce a large diameter without excessive wear. It is also a relatively low-cost model.
worm shaft

Thread pattern

A good worm gear requires a perfect thread pattern. There are a few key parameters that determine how good a thread pattern is. Firstly, the threading pattern must be ACME-threaded. If this is not possible, the thread must be made with straight sides. Then, the linear pitch of the “worm” must be the same as the circular pitch of the corresponding worm wheel. In simple terms, this means the pitch of the “worm” is the same as the circular pitch of the worm wheel. A quick-change gearbox is usually used with this type of worm gear. Alternatively, lead-screw change gears are used instead of a quick-change gear box. The pitch of a worm gear equals the helix angle of a screw.
A worm gear’s axial pitch must match the circular pitch of a gear with a higher axial pitch. The circular pitch is the distance between the points of teeth on the worm, while the axial pitch is the distance between the worm’s teeth. Another factor is the worm’s lead angle. The angle between the pitch cylinder and worm shaft is called its lead angle, and the higher the lead angle, the greater the efficiency of a gear.
Worm gear tooth geometry varies depending on the manufacturer and intended use. In early worms, threading resembled the thread on a screw, and was easily chased using a lathe. Later, grinding improved worm thread finishes and minimized distortions from hardening. As a result, today, most worm gears have a thread pattern corresponding to their size. When selecting a worm gear, make sure to check for the number of threads before purchasing it.
A worm gear’s threading is crucial in its operation. Worm teeth are typically cylindrical, and are arranged in a pattern similar to screw or nut threads. Worm teeth are often formed on an axis of perpendicular compared to their parallel counterparts. Because of this, they have greater torque than their spur gear counterparts. Moreover, the gearing has a low output speed and high torque.

Number of threads

Different types of worm gears use different numbers of threads on their planetary gears. A single threaded worm gear should not be used with a double-threaded worm. A single-threaded worm gear should be used with a single-threaded worm. Single-threaded worms are more effective for speed reduction than double-threaded ones.
The number of threads on a worm’s shaft is a ratio that compares the pitch diameter and number of teeth. In general, worms have 1,2,4 threads, but some have three, five, or six. Counting thread starts can help you determine the number of threads on a worm. A single-threaded worm has fewer threads than a multiple-threaded worm, but a multi-threaded worm will have more threads than a mono-threaded planetary gear.
To measure the number of threads on a worm shaft, a small fixture with two ground faces is used. The worm must be removed from its housing so that the finished thread area can be inspected. After identifying the number of threads, simple measurements of the worm’s outside diameter and thread depth are taken. Once the worm has been accounted for, a cast of the tooth space is made using epoxy material. The casting is moulded between the two tooth flanks. The V-block fixture rests against the outside diameter of the worm.
The circular pitch of a worm and its axial pitch must match the circular pitch of a larger gear. The axial pitch of a worm is the distance between the points of the teeth on a worm’s pitch diameter. The lead of a thread is the distance a thread travels in one revolution. The lead angle is the tangent to the helix of a thread on a cylinder.
The worm gear’s speed transmission ratio is based on the number of threads. A worm gear with a high ratio can be easily reduced in one step by using a set of worm gears. However, a multi-thread worm will have more than two threads. The worm gear is also more efficient than single-threaded gears. And a worm gear with a high ratio will allow the motor to be used in a variety of applications.
worm shaft

Lubrication

The lubrication of a worm gear is particularly challenging, due to its friction and high sliding contact force. Fortunately, there are several options for lubricants, such as compounded oils. Compounded oils are mineral-based lubricants formulated with 10 percent or more fatty acid, rust and oxidation inhibitors, and other additives. This combination results in improved lubricity, reduced friction, and lower sliding wear.
When choosing a lubricant for a worm shaft, make sure the product’s viscosity is right for the type of gearing used. A low viscosity will make the gearbox difficult to actuate and rotate. Worm gears also undergo a greater sliding motion than rolling motion, so grease must be able to migrate evenly throughout the gearbox. Repeated sliding motions will push the grease away from the contact zone.
Another consideration is the backlash of the gears. Worm gears have high gear ratios, sometimes 300:1. This is important for power applications, but is at the same time inefficient. Worm gears can generate heat during the sliding motion, so a high-quality lubricant is essential. This type of lubricant will reduce heat and ensure optimal performance. The following tips will help you choose the right lubricant for your worm gear.
In low-speed applications, a grease lubricant may be sufficient. In higher-speed applications, it’s best to apply a synthetic lubricant to prevent premature failure and tooth wear. In both cases, lubricant choice depends on the tangential and rotational speed. It is important to follow manufacturer’s guidelines regarding the choice of lubricant. But remember that lubricant choice is not an easy task.

China OEM Industrial Power Transmission NRV Series Extension Shaft Mounted Engine 90 Degree Speed Gear Box  near me manufacturer China OEM Industrial Power Transmission NRV Series Extension Shaft Mounted Engine 90 Degree Speed Gear Box  near me manufacturer