Warranty: 3 years
Applicable Industries: Hotels, Garment Shops, Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Farms, Restaurant, Home Use, Retail, Food Shop, Printing Shops, Construction works , Energy & Mining, Food & Beverage Shops, Advertising Company
Weight (KG): 35 KG
Customized support: OEM, ODM, OBM
Gearing Arrangement: Worm
Output Torque: 4~2320Nm
Input Speed: 0.28~4.7rpm
Output Speed: 1400rpm(4pole)
Color: RAL9006(grey) OR RAL5571(blue)
Label: Customer requirement
Material of housing: Aluminum&Cast Iron
Input Flange: IEC flange for mounting motor
Customization: Acceptable
Quality Control System: ISO9001:2008
output shaft dia (80B5/B14): 19mm ( for all ratio)
Output shaft dia(71B5/B14): 14mm for (ratio 40,50,60,80,100)
Output shaft dia(90B5/B14): 24mm dor (ratio 5,7.5,10,15,20,25, Industrial Gear box for crane and hoisiting VF series small worm drive gearbox 30)
Packaging Details: Carton + Wooden Case
1. Mad of high-quality aluminum alloy,light weight and non-rusting
2. Large output torque
3. Smooth in running and low in noise,can work long time in dreadful conditions.
4. High in radiating efficiency.
5. Good-looking in appearance,durable in service life and small in volume.
6. Suitable for omnibearing installation.
| Type: | Worm Gear Speed Reducer/ Gearbox |
| Model No.: | NMRV571, NMRV030, NMRV040, NMRV050, NMRV063, NMRV075, NMRV090, NMRV110, NMRV130, NMRV150 |
| Ratio: | 5,7.5,10,15,20,25,30,40,50,60,80,100 |
| Color: | Blue(Ral5571)/Silver Grey (RAL9006) Or On Customer Request |
| Material: | Housing: Size 25-110 Is Aluminum Alloy, Size 110-150 Is Cast-Iron |
| Worm Wheel: ZCuSn10Pb1 | |
| Worm:20Cr | |
| Pinion:Tin Bronze | |
| Output Shaft: Steel-45# | |
| Usages: | Industrial Machine: Food Stuff, Ceramics, Chemical, High torque low backlash servo motor planetary gearbox reducer Packing, Dyeing,Wood working, Glass. |
| IEC Flange: | IEC Standard Flange Or On Customer Request |
Company InformationAbout us
Established in 1985, CZPT TRANSMISSION MACHINERY CO., LTD is a high and new technology enterprise engaging in research, develop and manufacture for reducer & speed variator, 1 of the director member of China Reducer Association of China General Machinery.
It covers more than 40,000 square meters, has more than 400 staff , 20% of whom are technicians, equipped with more than 300 sets the most advanced accurate numerical control equipment, including German HOFLER forming gear grinding machine to improve quality.
set up more than 30 national sales branches to serve our customers in time and thoroughly.
Our products also exported to more than 30 countries main in Europe, Asia America, and Africa, with high reputation.
Trade Shows
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| SLP Series Planetary Reducer | SLH/SLB Series High Power Reducer |
| NMRV Series Worm Reducer | BKM Series Helical-hypoid Reducer |
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| SLR/SLF/SLK/SLS Series Helical Reducer |
Main product list: 16 series including SLR/SLS/SLK/SLF series hard tooth flank gear reducer , SLRC series aluminium case helical gear reducers,SLHSLB series high power speed reducer, SLP series planetary speed reducer, X/B series cycloidal reducer, SLXG series shaft-mounted gear box, SLSWL series worm screw jack, SLT series helical cone gear box, altogether more than 10,000 ratios, various specification make us at the head of domestic transmission industry, Maxpower Animal Husbandry Gear Motor Reducer Motor For Poultry Farm widely serve the mechanical transmission field of light & heavy industry such as: beer & beverage, mining machine, food packing, textile printing, rubber & plastic material, petrochemical industry, jack-up transportation, pharmacy & process hides, environmental protection equipment.
Contact usClick picture to contact us
FAQ1.Payment Term: TT, L/C
2.Delivery time: about 30 days from receive payment.
3.We accept customized products as per your special requirement.
4.Xihu (West Lake) Dis.lines for the Selection:Usually we can select 1 machine which is suitable for you with some informations from you,such as ratio/motor speed/mounting dimension/ out torque etc.
5.If the minimum order amount is in excess of $10000, there are preferential.
Q1: What information should I tell you to confirm the product?
A:Model/Size, Transmission Ratio, Shaft directions & Order quantity.
Q2: What can i do if I don’t know which 1 I need?
A:Dont worry, Send as much information as you can, our team will help you find the right 1 you are looking for.
Q3: What is your product warranty period?
A:We offer 1 year warranty since the vessel departure date left China.
Q4: Are you trading company or manufacturer ?
A: We are factory.
Q5: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q6: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q7: What is your terms of payment ?
A: Payment=1000USD, Laifual newest small size LSD-I series harmonic reducer gearbox 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below:
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.
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.
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.
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.
