Applicable Industries: Building Material Shops, Machinery Repair Shops, Farms, Energy & Mining
Gearing Arrangement: Worm
Output Torque: 2.6-1195N.M
Input Speed: 750~3000rpm
Output Speed: 0.64-350rmp
Product name: NMRV worm gear reducer motor
Housing Material: Aluminum Steel
Certificate: ISO9001
Ratio: 5~300
Bearing: CZPT Bearing
Gear material: 45# Cast Steel
Warranty: 1-2 Years
Mounting Position: Flange Mounted
Output torque: 2.6-1195N.M
Intput speed: 750~3000rpm

NMRV NRV SERIES WORM GEAR SPEED REDUCER According to European standard of similar product,we adopt high-quality artificial oil,imported famous brand seal parts and manufacture technology to produce square multi-placed reductor. Feature beautiful appearance,easy installation,compact structure,low noise and high efficiency.NMRV worm gear reducer absorbs advanced technology at home and abroad. It has a novel and unique "square box" external structure. The box is beautiful in shape and is made of high quality aluminium alloy by die casting.
NMRV RV series structure drawing

NMRV-063-30-VS-F1(FA)-AS-80B5-0.75KW-B3
NMRV Worm geared motor
NRV Worm reduction unit
063 center dictance
30 Reduction ratio
VS Double input shaft F1(FA) Output flange
AS Single output shaft  AB Double output shaft
PAM Fitted for motor coupling 80B5 Motor mounting facility
0.75KW Electric motor power B3 Mounting position

NMRV NRV SERIES WORM GEAR SPEED REDUCER FEATURES:● The weight of the NMRV reducer is relatively light. The shell is made of aluminium alloy. It has the advantages of light weight, superior strength, exquisite appearance, high heat dissipation performance, long service life, no noise and so on. It is easy to connect with the motor.● NMRV reducer is a more practical transmission equipment, and in the appearance design and its integration are more in line with the needs of the public than other types of reducers.●The application field and popularity of the RV reducer made of aluminium alloy are even better than other types of reducer. It is a kind of reducer with high practicability, and also a combination of advanced technology at home and abroad.● NMRV reducer is very convenient to connect with ordinary motor, CVT, flange electromagnetic clutch brake unit, and does not need coupling. Suitable for all-round installation, and the output torque is relatively large, work fairly smoothly and so on. PRECISION BEVEL GEAR20CrMn Ti material – low carbon alloy steelImported gear grinding machine processing, Inline gear speed reducer for Yaskawa Siemenz CZPT Servomotor high hardness, stable performance.Vacuum CZPT carburizing heat treatment, carburizing layer uniform.HIGH QUALITY SHELL  MATERIALThe box body is made of HT200 material,which is cleaned by professional screening and washing equipment to ensure that the inner cavity of the box body is cleaner without iron filings.
HIGH QUALITY OUTPUT SHAFTNew standard axle, multi-precision machining, through rigorous dynamic and static balance test, to ensure low noise and smooth operation of reducer
NMRV NRV SERIES WORM GEAR SPEED REDUCER MOUNTING DIMENSIONS Single Step Worm Gear Reducer
Output Flange Mounting Dimensions Torque Arm Dimensions
Our Company HangZhou YINXIN ELECTROMECHANICAL EQUIPMENT SUPPLY STATIONOur company is located in the city of HangZhou, ZheJiang Province of China. We handle the products of power transmission, our lines mainly cover series products in speed reducers, gearboxes , associated electricial motors and other power transmission accessories. Based on the versatile functions, our products can be utilized in many fields: machines of waste water treatment, dredgers, chemical industry, cranes, metal working mills, conveyors, paper industry, cement industry, cableways and so on.With the excellent quality and reasonable price , our products enjoy a good reputation from customers and the peers all over the world. Furthermore, the R&D investment are annually increasing for the purpose of better meeting the new demands of our customers and adapting the new tendency of the industry.Depending on the principles of honestly operating and mutual benefit, We sincerely look forward to cooperating with you.
Application areaNMRV NRV worm gear speed reducer.It is widely used in many fields such as metallurgy, mine, printing, chemical industry, High quality nmrv30 worm gearbox speed reducer worm gear reducer gear reduction machine aluminium gearbox textile, foodstuff, medicine, rubber and plastic,etc.
Packing&Transportion PACKING AND TRANSPORTION●Packaging: In order to ensure the integrity of product appearance, we will choose cartons, wooden pallets and wooden pallets according to customer needs.
●Delivery time: Each reducer is manufactured and tested in accordance with strict and fixed procedures to ensure that the quality is correct before leaving the factory and delivery on time.●Transportation mode: We will choose the most suitable mode of transportation for our customers according to the weight and size of the goods. We can also choose the mode of transportation according to the needs of our customers.●Receiving and after-sales service: After receiving the goods, please check whether they are in good condition. We will provide customers with perfect after-sales service.
FAQQ1: Are you a trading company or a manufacturer ?A: We are a manufacturer in ZheJiang Province, China. Our company owns the ability of manufacturing, processing,designing and R&D. We welcome your visit.
Q2: How we select models and specifications?A: According to the specific details of the demands from the part of enquiry, we will recommend the products' models upon synthesizing the factors of field of products usage, power, torque arm and ratio…
Q3: How is your price? Can you offer any discount?A: Our prices are always competitive. If the customer can place a large order, we surely will allow discount.
Q4: How long should I wait for the feedback after I send the enquiry?A4: We will reply the enquiries without any delay, 12 hours at most.
Q5: What is your product warranty period?A: We have the certifications of ISO99001,CE, SGS.
Q6: What industries are your gearboxes being used?A: Our gearboxes are widely applied to metallurgical equipment, mining equipment, automation equipment, food machinery, High precision speed stepper motor planetary gearbox reducer packaging equipment, tobacco equipment and so on.

Hypoid Bevel Vs Straight Spiral Bevel - What's the Difference?

Spiral gears come in many different varieties, but there is a fundamental difference between a Hypoid bevel gear and a Straight spiral bevel. This article will describe the differences between the two types of gears and discuss their use. Whether the gears are used in industrial applications or at home, it is vital to understand what each type does and why it is important. Ultimately, your final product will depend on these differences.
Gear

Hypoid bevel gears

In automotive use, hypoid bevel gears are used in the differential, which allows the wheels to rotate at different speeds while maintaining the vehicle's handling. This gearbox assembly consists of a ring gear and pinion mounted on a carrier with other bevel gears. These gears are also widely used in heavy equipment, auxiliary units, and the aviation industry. Listed below are some common applications of hypoid bevel gears.
For automotive applications, hypoid gears are commonly used in rear axles, especially on large trucks. Their distinctive shape allows the driveshaft to be located deeper in the vehicle, thus lowering the center of gravity and minimizing interior disruption. This design makes the hypoid gearset one of the most efficient types of gearboxes on the market. In addition to their superior efficiency, hypoid gears are very easy to maintain, as their mesh is based on sliding action.
The face-hobbed hypoid gears have a characteristic epicycloidal lead curve along their lengthwise axis. The most common grinding method for hypoid gears is the Semi-Completing process, which uses a cup-shaped grinding wheel to replace the lead curve with a circular arc. However, this method has a significant drawback - it produces non-uniform stock removal. Furthermore, the grinding wheel cannot finish all the surface of the tooth.
The advantages of a hypoid gear over a spiral bevel gear include a higher contact ratio and a higher transmission torque. These gears are primarily used in automobile drive systems, where the ratio of a single pair of hypoid gears is the highest. The hypoid gear can be heat-treated to increase durability and reduce friction, making it an ideal choice for applications where speed and efficiency are critical.
The same technique used in spiral bevel gears can also be used for hypoid bevel gears. This machining technique involves two-cut roughing followed by one-cut finishing. The pitch diameter of hypoid gears is up to 2500 mm. It is possible to combine the roughing and finishing operations using the same cutter, but the two-cut machining process is recommended for hypoid gears.
The advantages of hypoid gearing over spiral bevel gears are primarily based on precision. Using a hypoid gear with only three arc minutes of backlash is more efficient than a spiral bevel gear that requires six arc minutes of backlash. This makes hypoid gears a more viable choice in the motion control market. However, some people may argue that hypoid gears are not practical for automobile assemblies.
Hypoid gears have a unique shape - a cone that has teeth that are not parallel. Their pitch surface consists of two surfaces - a conical surface and a line-contacting surface of revolution. An inscribed cone is a common substitute for the line-contact surface of hypoid bevel gears, and it features point-contacts instead of lines. Developed in the early 1920s, hypoid bevel gears are still used in heavy truck drive trains. As they grow in popularity, they are also seeing increasing use in the industrial power transmission and motion control industries.
Gear

Straight spiral bevel gears

There are many differences between spiral bevel gears and the traditional, non-spiral types. Spiral bevel gears are always crowned and never conjugated, which limits the distribution of contact stress. The helical shape of the bevel gear is also a factor of design, as is its length. The helical shape has a large number of advantages, however. Listed below are a few of them.
Spiral bevel gears are generally available in pitches ranging from 1.5 to 2500 mm. They are highly efficient and are also available in a wide range of tooth and module combinations. Spiral bevel gears are extremely accurate and durable, and have low helix angles. These properties make them excellent for precision applications. However, some gears are not suitable for all applications. Therefore, you should consider the type of bevel gear you need before purchasing.
Compared to helical gears, straight bevel gears are easier to manufacture. The earliest method used to manufacture these gears was the use of a planer with an indexing head. However, with the development of modern manufacturing processes such as the Revacycle and Coniflex systems, manufacturers have been able to produce these gears more efficiently. Some of these gears are used in windup alarm clocks, washing machines, and screwdrivers. However, they are particularly noisy and are not suitable for automobile use.
A straight bevel gear is the most common type of bevel gear, while a spiral bevel gear has concave teeth. This curved design produces a greater amount of torque and axial thrust than a straight bevel gear. Straight teeth can increase the risk of breaking and overheating equipment and are more prone to breakage. Spiral bevel gears are also more durable and last longer than helical gears.
Spiral and hypoid bevel gears are used for applications with high peripheral speeds and require very low friction. They are recommended for applications where noise levels are essential. Hypoid gears are suitable for applications where they can transmit high torque, although the helical-spiral design is less effective for braking. For this reason, spiral bevel gears and hypoids are generally more expensive. If you are planning to buy a new gear, it is important to know which one will be suitable for the application.
Spiral bevel gears are more expensive than standard bevel gears, and their design is more complex than that of the spiral bevel gear. However, they have the advantage of being simpler to manufacture and are less likely to produce excessive noise and vibration. They also have less teeth to grind, which means that they are not as noisy as the spiral bevel gears. The main benefit of this design is their simplicity, as they can be produced in pairs, which saves money and time.
In most applications, spiral bevel gears have advantages over their straight counterparts. They provide more evenly distributed tooth loads and carry more load without surface fatigue. The spiral angle of the teeth also affects thrust loading. It is possible to make a straight spiral bevel gear with two helical axes, but the difference is the amount of thrust that is applied to each individual tooth. In addition to being stronger, the spiral angle provides the same efficiency as the straight spiral gear.
Gear

Hypoid gears

The primary application of hypoid gearboxes is in the automotive industry. They are typically found on the rear axles of passenger cars. The name is derived from the left-hand spiral angle of the pinion and the right-hand spiral angle of the crown. Hypoid gears also benefit from an offset center of gravity, which reduces the interior space of cars. Hypoid gears are also used in heavy trucks and buses, where they can improve fuel efficiency.
The hypoid and spiral bevel gears can be produced by face-hobbing, a process that produces highly accurate and smooth-surfaced parts. This process enables precise flank surfaces and pre-designed ease-off topographies. These processes also enhance the mechanical resistance of the gears by 15 to 20%. Additionally, they can reduce noise and improve mechanical efficiency. In commercial applications, hypoid gears are ideal for ensuring quiet operation.
Conjugated design enables the production of hypoid gearsets with length or profile crowning. Its characteristic makes the gearset insensitive to inaccuracies in the gear housing and load deflections. In addition, crowning allows the manufacturer to adjust the operating displacements to achieve the desired results. These advantages make hypoid gear sets a desirable option for many industries. So, what are the advantages of hypoid gears in spiral gears?
The design of a hypoid gear is similar to that of a conventional bevel gear. Its pitch surfaces are hyperbolic, rather than conical, and the teeth are helical. This configuration also allows the pinion to be larger than an equivalent bevel pinion. The overall design of the hypoid gear allows for large diameter shafts and a large pinion. It can be considered a cross between a bevel gear and a worm drive.
In passenger vehicles, hypoid gears are almost universal. Their smoother operation, increased pinion strength, and reduced weight make them a desirable choice for many vehicle applications. And, a lower vehicle body also lowers the vehicle's body. These advantages made all major car manufacturers convert to hypoid drive axles. It is worth noting that they are less efficient than their bevel gear counterparts.
The most basic design characteristic of a hypoid gear is that it carries out line contact in the entire area of engagement. In other words, if a pinion and a ring gear rotate with an angular increment, line contact is maintained throughout their entire engagement area. The resulting transmission ratio is equal to the angular increments of the pinion and ring gear. Therefore, hypoid gears are also known as helical gears.

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