Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Printing Shops, Energy & Mining
Type: sprag
Model Number: NJ85 ND60
Precision Rating: P0
Seals Type: sealed
Product name: NJ85 Backstop Clutch
Material: GCr15
Width: 110mm
Application: machinery
Package: carton box or wooden case
OEM: accept
Delivery Time: 10-15 days
Stock: small size in stock
Torque: 6 62435 Suspension European Truck Control Arm Reaction Torque Rod thrust rod MB Actros HangZhou; HangZhou

Technical Datas

Item	NJ85(ND60)
Material	GCr15
Bore dia.	70-85 mm
Outer dia.	210 mm
Width (L)	110 mm
Load capacity	6000 N.m
Darg torque	8 N.m
Weight	29.2 kg
Package	Carton box, wooden case or as your requirements

Features of NJ Backstop
Backstop NJ(NYD,ND) with torque arm are without ball bearings support. The Backstop are arranged on through shafts or shaft ends.The backstop NJ are used as:Backstops for low-speed applications.
They are designed for use in inclined conveyor-belt systems, 350 Suspension European Truck Reaction Axle Torque Rod Repair Kit MB Actros Rubber Bush elevators and pumps. Taconite seals protect the backstops when conditions are dirty and dusty.

MODELS NJ65-NJ450

Dimensions and Capacities

Type	Load Capacity	Inner Race Max. Speed	Drag Torque	Bore	Size (mm)									Weight
	N.m	r/min	N.m	mm	A	B	D	H	h1	Φ	h	L	L1	kg
ND16 (NJ65)	1600	150	4	50-65	50	6	160	226	16	13.5	30	85	106	13.5
ND25 (NJ75)	2500		5	60-75	65		170	269	19	16.5	35			16.1
ND60 (NJ85)	6000		8	70-85	95	9	210	329	29	20.5	45	110	135	29.2
ND80 (NJ95)	8000		10	80-95	105		230	382	32		55		138	37.2
ND110 (NJ110)	11000		15	90-110	110	12	270	425	40	26	60		141	46.2
ND160 (NJ130)	16000	100	20	100-130	120		320	506	36		65	130	161	82.8
ND250 (NJ160)	25000		35	120-160	120	20	360	612	32	31		140	183	125
ND380 (NJ200)	38000		45	160-200	130		430	623	43	41	70	160	207	180
ND500 (NJ220)	50000	80	75	160-220	238	259	500	820	80	–		230	303	351
ND650 (NJ230)	65000	80	85	180-240	260	279	540	900	90	–		250	323	525
ND900 (NJ250)	90000	50	95	180-250	288	323	600	1000	100	–		290	367	675
ND1250 (NJ270)	125000		100	200-270	298		650	1100	110	–				737
ND1800 (NJ300)	180000		110	230-300	356	335	780	1300	135	–		290	392	1123
ND2700 (NJ320)	270000		140	250-320	386	345	850	1500	135			320	412	1425
ND3200 (NJ350)	320000		160	250-350	414	360	930	1600	135			360	426	1955
ND5200 (NJ420)	520000		220	320-420	474	484	1030	1800	165			450	550	2930
ND7000 (NJ450)	700000		250	350-450	526	494	1090	2000	165			480	574	3380

Mounting
The back driving torque is restrained by the torque arm. The torque arm must not be clamped into position. It must have 0.5 inch play in the axial and in the radial direction.NJ backstops are supplied for a clearance fit. Set screws on the inner ring are provided for axial retention, shaft collars are not required.

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FAQ

Choosing a Gearbox For Your Application

The gearbox is an essential part of bicycles. It is used for several purposes, including speed and force. A gearbox is used to achieve one or both of these goals, but there is always a trade-off. Increasing speed increases wheel speed and forces on the wheels. Similarly, increasing pedal force increases the force on the wheels. This makes it easier for cyclists to accelerate their bicycles. However, this compromise makes the gearbox less efficient than an ideal one.

Dimensions

Gearboxes come in different sizes, so the size of your unit depends on the number of stages. Using a chart to determine how many stages are required will help you determine the dimensions of your unit. The ratios of individual stages are normally greater at the top and get smaller as you get closer to the last reduction. This information is important when choosing the right gearbox for your application. However, the dimensions of your gearbox do not have to be exact. Some manufacturers have guides that outline the required dimensions.
The service factor of a gearbox is a combination of the required reliability, the actual service condition, and the load that the gearbox will endure. It can range from 1.0 to 1.4. If the service factor of a gearbox is 1.0, it means that the unit has just enough capacity to meet your needs, but any extra requirements could cause the unit to fail or overheat. However, service factors of 1.4 are generally sufficient for most industrial applications, since they indicate that a gearbox can withstand 1.4 times its application requirement.
Different sizes also have different shapes. Some types are concentric, while others are parallel or at a right angle. The fourth type of gearbox is called shaft mount and is used when mounting the gearbox by foot is impossible. We will discuss the different mounting positions later. In the meantime, keep these dimensions in mind when choosing a gearbox for your application. If you have space constraints, a concentric gearbox is usually your best option.

Construction

The design and construction of a gearbox entails the integration of various components into a single structure. The components of a gearbox must have sufficient rigidity and adequate vibration damping properties. The design guidelines note the approximate values for the components and recommend the production method. Empirical formulas were used to determine the dimensions of the various components. It was found that these methods can simplify the design process. These methods are also used to calculate the angular and axial displacements of the components of the gearbox.
In this project, we used a 3D modeling software called SOLIDWORKS to create a 3-D model of a gear reducer. We used this software to simulate the structure of the gearbox, and it has powerful design automation tools. Although the gear reducer and housing are separate parts, we model them as a single body. To save time, we also removed the auxiliary elements, such as oil inlets and oil level indicators, from the 3D model.
Our method is based on parameter-optimized deep neural networks (DBNs). This model has both supervised and unsupervised learning capabilities, allowing it to be self-adaptive. This method is superior to traditional methods, which have poor self-adaptive feature extraction and shallow network generalization. Our algorithm is able to recognize faults in different states of the gearbox using its vibration signal. We have tested our model on two gearboxes.
With the help of advanced material science technologies, we can now manufacture the housing for the gearbox using high-quality steel and aluminium alloys. In addition, advanced telematics systems have increased the response time of manufacturers. These technologies are expected to create tremendous opportunities in the coming years and fuel the growth of the gearbox housing market. There are many different ways to construct a gearbox, and these techniques are highly customizable. In this study, we will consider the design and construction of various gearbox types, as well as their components.

Working

A gearbox is a mechanical device that transmits power from one gear to another. The different types of gears are called planetary gears and are used in a variety of applications. Depending on the type of gearbox, it may be concentric, parallel, or at a right angle. The fourth type of gearbox is a shaft mount. The shaft mount type is used in applications that cannot be mounted by foot. The various mounting positions will be discussed later.
Many design guidelines recommend a service factor of 1.0, which needs to be adjusted based on actual service conditions. This factor is the combined measure of external load, required reliability, and overall gearbox life. In general, published service factors are the minimum requirements for a particular application, but a higher value is necessary for severe loading. This calculation is also recommended for high-speed gearboxes. However, the service factor should not be a sole determining factor in the selection process.
The second gear of a pair of gears has more teeth than the first gear. It also turns slower, but with greater torque. The second gear always turns in the opposite direction. The animation demonstrates this change in direction. A gearbox can also have more than one pair of gears, and a first gear may be used for the reverse. When a gear is shifted from one position to another, the second gear is engaged and the first gear is engaged again.
Another term used to describe a gearbox is “gear box.” This term is an interchangeable term for different mechanical units containing gears. Gearboxes are commonly used to alter speed and torque in various applications. Hence, understanding the gearbox and its parts is essential to maintaining your car’s performance. If you want to extend the life of your vehicle, be sure to check the gearbox’s efficiency. The better its functioning, the less likely it is to fail.

Advantages

Automatic transmission boxes are almost identical to mechanical transmission boxes, but they also have an electronic component that determines the comfort of the driver. Automatic transmission boxes use special blocks to manage shifts effectively and take into account information from other systems, as well as the driver’s input. This ensures accuracy and positioning. The following are a few gearbox advantages:
A gearbox creates a small amount of drag when pedaling, but this drag is offset by the increased effort to climb. The external derailleur system is more efficient when adjusted for friction, but it does not create as little drag in dry conditions. The internal gearbox allows engineers to tune the shifting system to minimize braking issues, pedal kickback, and chain growth. As a result, an internal gearbox is a great choice for bikes with high-performance components.
Helical gearboxes offer some advantages, including a low noise level and lower vibration. They are also highly durable and reliable. They can be extended in modular fashion, which makes them more expensive. Gearboxes are best for applications involving heavy loads. Alternatively, you can opt for a gearbox with multiple teeth. A helical gearbox is more durable and robust, but it is also more expensive. However, the benefits far outweigh the disadvantages.
A gearbox with a manual transmission is often more energy-efficient than one with an automatic transmission. Moreover, these cars typically have lower fuel consumption and higher emissions than their automatic counterparts. In addition, the driver does not have to worry about the brakes wearing out quickly. Another advantage of a manual transmission is its affordability. A manual transmission is often available at a lower cost than its automatic counterpart, and repairs and interventions are easier and less costly. And if you have a mechanical problem with the gearbox, you can control the fuel consumption of your vehicle with appropriate driving habits.

Application

While choosing a gearbox for a specific application, the customer should consider the load on the output shaft. High impact loads will wear out gear teeth and shaft bearings, requiring higher service factors. Other factors to consider are the size and style of the output shaft and the environment. Detailed information on these factors will help the customer choose the best gearbox. Several sizing programs are available to determine the most appropriate gearbox for a specific application.
The sizing of a gearbox depends on its input speed, torque, and the motor shaft diameter. The input speed must not exceed the required gearbox’s rating, as high speeds can cause premature seal wear. A low-backlash gearbox may be sufficient for a particular application. Using an output mechanism of the correct size may help increase the input speed. However, this is not recommended for all applications. To choose the right gearbox, check the manufacturer’s warranty and contact customer service representatives.
Different gearboxes have different strengths and weaknesses. A standard gearbox should be durable and flexible, but it must also be able to transfer torque efficiently. There are various types of gears, including open gearing, helical gears, and spur gears. Some of the types of gears can be used to power large industrial machines. For example, the most popular type of gearbox is the planetary drive gearbox. These are used in material handling equipment, conveyor systems, power plants, plastics, and mining. Gearboxes can be used for high-speed applications, such as conveyors, crushers, and moving monorail systems.
Service factors determine the life of a gearbox. Often, manufacturers recommend a service factor of 1.0. However, the actual value may be higher or lower than that. It is often useful to consider the service factor when choosing a gearbox for a particular application. A service factor of 1.4 means that the gearbox can handle 1.4 times the load required. For example, a 1,000-inch-pound gearbox would need a 1,400-inch-pound gearbox. Service factors can be adjusted to suit different applications and conditions.

editor by czh2023-02-18