Tag Archives: bevel gear oem

China OEM IEC Standard Flange RC Series Aluminum Helical Gear Units Shaft Flange Mounted Inline Helical Gear Reducer Replace The R Series Gearbox advantages of bevel helical gearbox

Product Description

IEC Standard Flange RC series Aluminum Helical Gear Units Shaft Flange Mounted Inline Helical Gear Reducer Replace The R Series Gearbox


Housing Nodular Cast Iron(Ductile Iron) QT600
Gears Profile Hardened Helical Gears
Gears Material 20CrMnTi
Gears Processing Carburizing, Quenching, Grinding
Gears Hardness Surface Hardness: HRC58-62, Inner Hardness: HBS156-207
Gears Accuracy 6 Class
Shafts Material 40Cr
Input Configurations Keyed CZPT Shaft Input
IEC Normalized Motor Flange
Output Configurations Keyed Hollow Shaft Output
Oil Seal ZheJiang SOG
Bearings NSK, SKF, HRB, ZWZ, LYC
Spare Parts Torque arm, Optional Backstop





Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Hardness: Soft Tooth Surface
Installation: 90 Degree
Layout: Helical Gearbox
Gear Shape: Conical – Cylindrical Gear
Step: Stepless
US$ 9999/Piece
1 Piece(Min.Order)

Request Sample

helical gearbox

NVH Characteristics of Helical Gearbox

Typically, a helical gearbox is used in the transmission of torque, speed, or both. Its primary function is to rotate a circular machine part while simultaneously meshing with other toothed parts. It operates on the same principle as a lever.

Typical applications

Typical applications of helical gearboxes include conveyors, blowers, and elevators. They are also used in the construction of plastics and rubber. Their basic benefits include reduced vibration, lower noise levels, and high load carrying capacity. They are also known to be more durable and quiet than spur gears.
There are several factors that should be taken into consideration when choosing the right gear set for a particular application. These include power requirements, torque requirements, and the environment in which it will operate. Also, bearings and lubricants will need to be considered.
Helical gears are used for heavy load applications, as they provide a high load-carrying capacity. They also are less expensive than spur gears. However, their efficiency is lower than spur gears. This is due to the fact that helical gears have larger teeth. They also have a lower dynamic load than spur gears. This reduces wear and tear on the gears.
Helical gears are also used in high-speed applications. They can also be used with non-parallel shafts. They are typically chosen over spur gears for non-parallel applications. However, helical gears are prone to misalignment due to axial thrust. This can be corrected by adjusting the bearing position.
Helical gears can also be used as power transmitting gears. They are commonly used in transmissions in the automotive industry. They are also used in a wide range of other industrial applications. These include blowers, feeders, coolers, and conveyors. They can also be used in the food and oil industries.
The most common types of helical gearboxes are single and double helical gearboxes. Single helical gears have one helical section that is parallel to the axis. Those with a circular arc curved tooth are also available.

NVH characteristics

NVH characteristics of helical gearbox are a major consideration in the development of new driveline products. NVH can be quantified using wavelet analysis, order analysis and statistical energy analysis. These techniques are typically used in the frequency domain, but can also be used in the real time domain.
The most basic NVH method uses a modal analysis to quantify the transmission noise. Simplified models use sinusoidal stiffness variations, but can also be used to study special effects.
One of the most important aspects of NVH is the integrity of the signal chain. The signal chain is affected by the gear meshing impact and the main transmission housing excitation. The first step in quantifying NVH is to establish a signal chain. This can be done by comparing the signals that are recorded on an analog to digital converter or hard disk. Then, using fast Fourier transforms, signals are converted from the time domain into the frequency domain.
For NVH analysis, it is important to obtain a representative prototype of the production vehicle. This is necessary early in the design phase, as changes to the final product often require substantial design modifications.
For helical gearboxes, the main benefit of reverse module configuration is that the radial type gearbox is more economical to produce. The radial type gearbox uses the same tooth-cutting tools as a spur gear, but can be produced more economically.
The basic characteristics of helical gears are that they have more surface contact and are more powerful in their carrying capacity. Because of this, the helical gearbox is typically used for high-load applications. However, helical gearboxes tend to produce lower efficiencies than spur types.
Thermal deformation of bearings can also change NVH characteristics of a helical gear transmission system. In this study, the effects of bearing temperature rise on the nonlinear dynamic characteristics of a helical gear system are investigated.helical gearbox


Compared to conventional gears, helical gears have more surface contact and produce less noise. These gears are a great choice for home and light industrial applications, especially where high-efficiency is required.
Helical gears produce axial thrust force through a special lubricant. They are used in different industries, such as automotive, oil, food, plastic, and textile. They are also used in blowers, feeders, and geared motors.
In helical gears, there is a special tooth at an angle to the axis of rotation. This tooth retains contact while the gear rotates into full engagement. Typically, the angle between the helix and the axis of rotation is 15 to 30 degrees. This angle is important for determining the number of teeth.
Compared to a straight cut gear, a helical gear has a higher power to weight ratio. This means that the helical gear can accommodate a higher load.
Helical gears are typically paired, with each gear containing a v-shaped tooth. The v-shaped tooth is designed to allow for a greater contact ratio, while maintaining an acceptable minimum amount of bottom clearance. However, the tooth tip may fracture if it is too thin.
A mathematical definition of the helix angle is important for the design of a helical gear. The helix angle is defined in the section on geometry of helical gear teeth.
The angle between the helix and the axial axis of rotation is used to calculate the axial contact ratio of a gear. This ratio is defined as the sum of the total number of contact lines, or teeth. If the overlap ratio of a gear pair is zero, then the axial contact ratio is also zero.
A helical gearbox can be a highly efficient transmission system, but may suffer from transmission error. This is the result of the axial thrust force, which is dissipated when it enters contact with an opposing tooth. To minimize the amount of power loss in a helical gear box, several approaches have been developed.

Transverse and normal planes of the teeth

Generally, helical gear teeth have two planes: the transverse and normal planes. The normal plane is perpendicular to the pitch plane. The transverse plane is perpendicular to the axial plane.
When a tooth is in contact, the load is normal to the surface at the contact point. This is known as the pressure angle. This angle is a function of the tooth’s radial position on the shaft axis. The angle can also be used to describe the shape of a tooth.
In helical gears, the normal pressure angle is the angle of the load line into the plane normal to the tooth axis. It is important to know the pressure angle when calculating the forces in a helical gear pair. This angle is usually between 15 and 30 degrees.
The helical gearbox is the most widely used gearbox. It consists of a set of helical gears connected by parallel shafts. It is also used in blowers, textile, sugar, and marine applications. It has a higher contact level and less vibration than conventional gears.
Helical gears can be used in feeders, blowers, and rubber and plastic applications. They are quieter than conventional gears, which is especially important in the food industry. They also transfer larger loads. They are also durable and can be used in blowers.
Helical gears have a slanted tooth trace. They are less noisy than conventional gears, which makes them ideal for marine applications. They also transmit rotation smoothly. They have an effective axial thrust force and transmit less vibration. They are used in many industrial applications, including the oil industry and the food industry.
Helical gears on non-parallel shafts have two major circles: the pitch circle and the root diameter. These circles can be different, so different tooth shapes can be used in the radial module system.helical gearbox

Impact of external thrust on helical gears

Considering that gearboxes are often a key component of power transmissions, the impact of external thrust on gearboxes has been investigated. This paper presents a theoretical model, accompanied by experimental measurements. In particular, this paper focuses on the effects of the thrust collar on the transfer path.
The thrust collar has been successfully proven to reduce the axial thrust between helical gears. It also reduces the acoustic impact of the gearbox by attenuating the radiated sound power. This has been accomplished by incorporating a sound damping mechanism that includes Rayleigh damping. The oil film that surrounds the thrust collar is another damping element.
In addition to reducing gearbox vibration, the oil film damping may attenuate coupled degrees of freedom. To test this, a theoretical model of a gearbox equipped with a thrust collar was developed. This model was then used in a gearbox dynamics simulation model to analyze the effects of the thrust collar on the transferpath.
The first partial model shows how the oil film and the radiated sound power could alter the acoustic performance of a gearbox. In particular, the sound pressure levels of exciting frequencies are compared at the top cover of the gearbox in the vertical direction. This was done using an accelerometer.
The second partial model is a simulation of airborne sound from the gearbox housing. This is done using the compound of the motor excitation and the meshing excitation. This is done by measuring the frequency of radiated sound at four different combinations of torque and speed.
In addition, the helical gear has been sliced into an arbitrary number of cross sections. Each gear is then mounted on a shaft, which rotates with a different timing. The helical gear is compared to a corresponding spur gear for comparison. The spur gear has a higher root stress, but its relative contact stress isn’t nearly as big as that of the helical gear.
China OEM IEC Standard Flange RC Series Aluminum Helical Gear Units Shaft Flange Mounted Inline Helical Gear Reducer Replace The R Series Gearbox   advantages of bevel helical gearboxChina OEM IEC Standard Flange RC Series Aluminum Helical Gear Units Shaft Flange Mounted Inline Helical Gear Reducer Replace The R Series Gearbox   advantages of bevel helical gearbox
editor by CX 2023-06-13

China OEM Kpm Series Hypoid Helical Gear Box (Ratio 7.5 to 300) helical bevel gearbox efficiency

Product Description

Product Description

KPM-KPB series helical-hypoid gearboxes are the new-generation product with a compromise of advanced technology both at home and abroad.This product is widely used in textile, foodstuff, beverage,tobacco, logistics industrial fields,etc.
Main Features:
(1) Driven by hypoid gears, which has big ratios.
(2) Large output torque, high efficiency(up to 92%), energy saving and environmental protection.
(3) High quality aluminum alloy housing, light in weight and non-rusting.
(4) Smooth in running and low in noise, and can work long time in dreadful conditions.
(5) Good-looking appearance, durable service life and small volume.
(6) Suitable for all round installation, wide application and easy use.
(7) KPM series can replace NMRV worm gearbox; KPB series can replace CZPT W series worm gearbox;
(8) Modular and multi-structure can meet the demands of various conditions.
 Main Material:
(1) Housing: aluminum alloy 
(2) Gear wheel: 20CrMnTiH1,carbonize & quencher heat treatment make the hardness of gears surface up to 56-62 HRC, retain carburization layers thickness between 0.3 and 0.5mm after precise grinding.

Detailed Photos

Product Parameters

Model Information:

KPM50..           n1=1400r/min       160Nm    
Model i i n2 M2max Fr2 63B5 71B5/B14 80B5/B14 90B5/B14    
nominal actual [r/min] [Nm] [N]    
3 Stage    
KPM50C   300 294.05 4.8 130  4100   N/A N/A N/A    
KPM50C   250 244.29 5.8 130  4100   N/A N/A N/A    
KPM50C   200 200.44 7.0  130  4100   N/A N/A N/A    
KPM50C   150 146.67 9.6 160  4000   N/A N/A N/A    
KPM50C   125 120.34 12 160  3770     N/A N/A    
KPM50C   100 101.04 14 160  3560     N/A N/A    
KPM50C   75 74.62 19 160  3220     N/A N/A    
KPM50C   60 62.36 23 160  3030     N/A N/A    
KPM50C   50 52.36 27 160  2860     N/A N/A    
2 Stage    
KPM50B   60 58.36 24 130  2960     N/A N/A    
KPM50B   50 48.86 29 130  2790       N/A    
KPM50B   40 40.09 35 130  2610       N/A    
KPM50B   30 29.33 48 160  2350       N/A    
KPM50B   25 24.07 59 160  2200            
KPM50B   20 20.21 70 160  2080            
KPM50B   15 14.92 94 160  1880            
KPM50B   12.5 12.47 113 160  1770            
KPM50B   10 10.47 134 160  1670            
KPM50B   7.5 7.73 182 160  1510            
KPM63..,KPB63..           n1=1400r/min       180Nm    
Model i i n2 M2max Fr2 63B5 71B5/B14 80B5/B14 90B5/B14    
nominal actual [r/min] [Nm] [N]    
3 Stage    
KPM63C KPB63C 300 302.50  4.7 160  4800   N/A N/A N/A    
KPM63C KPB63C 250 243.57  5.8 160  4800   N/A N/A N/A    
KPM63C KPB63C 200 196.43  7.2  160  4800     N/A N/A    
KPM63C KPB63C 150 151.56  9.3 180  4650     N/A N/A    
KPM63C KPB63C 125 122.22  12 180  4330     N/A N/A    
KPM63C KPB63C 100 94.50  14 180  4070     N/A N/A    
KPM63C KPB63C 75 73.33  20 180  3650       N/A    
KPM63C KPB63C 60 63.33  23 180  3480       N/A    
KPM63C KPB63C 50 52.48  27 180  3270       N/A    
2 Stage    
KPM63B KPB63B 60 60.50  24 160  3430       N/A    
KPM63B KPB63B 50 48.71  29 160  3190            
KPM63B KPB63B 40 39.29  36 160  2970            
KPM63B KPB63B 30 30.31  47 180  2720            
KPM63B KPB63B 25 24.44  58 180  2530 N/A          
KPM63B KPB63B 20 18.90  70 180  2380 N/A          
KPM63B KPB63B 15 14.67  96 180  2130 N/A N/A        
KPM63B KPB63B 12.5 12.67  111 180  2030 N/A N/A        
KPM63B KPB63B 10 10.50  134 180  1910 N/A N/A        
KPM63B KPB63B 7.5 7.60  185 180  1710 N/A N/A        
KPM75..,KPB75..           n1=1400r/min           350Nm
Model i i n2 M2max Fr2 63B5 71B5 80B5/B14 90B5/B14 100B5/B14 112B5/B14
nominal actual [r/min] [Nm] [N]
3 Stage
KPM75C KPB75C 300 297.21  4.8 300  6500     N/A N/A N/A N/A
KPM75C KPB75C 250 240.89  5.9 300  6500     N/A N/A N/A N/A
KPM75C KPB75C 200 200.66  7.0  300  6500     N/A N/A N/A N/A
KPM75C KPB75C 150 149.30  9.3 350  6500       N/A N/A N/A
KPM75C KPB75C 125 121.00  12 350  5980       N/A N/A N/A
KPM75C KPB75C 100 100.80  15 350  5520       N/A N/A N/A
KPM75C KPB75C 75 79.40  19 350  5040         N/A N/A
KPM75C KPB75C 60 62.43  23 350  4730 N/A       N/A N/A
KPM75C KPB75C 50 49.18  29 350  4370 N/A       N/A N/A
2 Stage
KPM75B KPB75B 60 59.44  24 300  4660 N/A       N/A N/A
KPM75B KPB75B 50 48.18  30 300  4340 N/A       N/A N/A
KPM75B KPB75B 40 40.13  35 300  4080 N/A         N/A
KPM75B KPB75B 30 29.86  47 350  3720 N/A N/A       N/A
KPM75B KPB75B 25 24.20  56 350  3500 N/A N/A        
KPM75B KPB75B 20 20.16  71 350  3230 N/A N/A        
KPM75B KPB75B 15 15.88  93 350  2950 N/A N/A        
KPM75B KPB75B 12.5 12.49  113 350  2770 N/A N/A N/A      
KPM75B KPB75B 10 9.84  143 350  2550 N/A N/A N/A      
KPM75B KPB75B 7.5 7.48  188 350  2330 N/A N/A N/A      
KPM90..,KPB86..           n1=1400r/min           500Nm
Model i i n2 M2max Fr2 63B5 71B5 80B5/B14 90B5/B14 100B5/B14 112B5/B14
nominal actual [r/min] [Nm] [N]
3 Stage
KPM90C KPB86C 300 297.21  4.8 450  6500     N/A N/A N/A N/A
KPM90C KPB86C 250 240.89  5.9 450  6500       N/A N/A N/A
KPM90C KPB86C 200 200.66  7.0  450  6500       N/A N/A N/A
KPM90C KPB86C 150 151.20  9.3 500  6500       N/A N/A N/A
KPM90C KPB86C 125 125.95  12 500  5980       N/A N/A N/A
KPM90C KPB86C 100 99.22  15 500  5520 N/A       N/A N/A
KPM90C KPB86C 75 75.45  19 500  5040 N/A       N/A N/A
KPM90C KPB86C 60 62.43  23 500  4730 N/A       N/A N/A
KPM90C KPB86C 50 49.18  29 500  4370 N/A       N/A N/A
2 Stage
KPM90B KPB86B 60 59.44  24 450  5890 N/A         N/A
KPM90B KPB86B 50 48.18  30 450  5500 N/A         N/A
KPM90B KPB86B 40 40.13  35 450  5170 N/A N/A        
KPM90B KPB86B 30 30.24  47 500  4710 N/A N/A        
KPM90B KPB86B 25 25.19  56 500  4430 N/A N/A        
KPM90B KPB86B 20 19.84  71 500  4090 N/A N/A N/A      
KPM90B KPB86B 15 15.09  93 500  3730 N/A N/A N/A      
KPM90B KPB86B 12.5 12.49  113 500  3510 N/A N/A N/A      
KPM90B KPB86B 10 9.84  143 500  3240 N/A N/A N/A      
KPM90B KPB86B 7.5 7.48  188 500  2950 N/A N/A N/A      

Outline Dimension:

Company Profile

About our company:
We are a professional reducer manufacturer located in HangZhou, ZHangZhoug province.Our leading products is  full range of RV571-150 worm reducers , also supplied hypoid helical gearbox, PC units, UDL Variators and AC Motors.Products are widely used for applications such as: foodstuffs, ceramics, packing, chemicals, pharmacy, plastics, paper-making, construction machinery, metallurgic mine, environmental protection engineering, and all kinds of automatic lines, and assembly lines.With fast delivery, superior after-sales service, advanced producing facility, our products sell well  both at home and abroad. We have exported our reducers to Southeast Asia, Eastern Europe and Middle East and so on.Our aim is to develop and innovate on basis of high quality, and create a good reputation for reducers.

 Packing information:Plastic Bags+Cartons+Wooden Cases , or on request
We participate Germany Hannver Exhibition-ZheJiang PTC Fair-Turkey Win Eurasia


After Sales Service

1.Maintenance Time and Warranty:Within 1 year after receiving goods.
2.Other ServiceIncluding modeling selection guide, installation guide, and problem resolution guide, etc.


1.Q:Can you make as per customer drawing?
A: Yes, we offer customized service for customers accordingly. We can use customer’s nameplate for gearboxes.
2.Q:What is your terms of payment ?
A: 30% deposit before production,balance T/T before delivery.
3.Q:Are you a trading company or manufacturer?
A:We are a manufacurer with advanced equipment and experienced workers.
4.Q:What’s your production capacity?
A:8000-9000 PCS/MONTH
5.Q:Free sample is available or not?
A:Yes, we can supply free sample if customer agree to pay for the courier cost
6.Q:Do you have any certificate?
A:Yes, we have CE certificate and SGS certificate report.

Contact information:
Ms Lingel Pan
For any questions just feel free ton contact me. Many thanks for your kind attention to our company!



Application: Motor, Machinery, Marine, Agricultural Machinery, Industry
Function: Distribution Power, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction
Layout: Right-Angle
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Step: Two Stage-Three Stage
US$ 45/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

helical gearbox

Why Choose a Helical Gearbox?

Choosing a helical gearbox is an important decision for any machine builder. It can help you to reduce maintenance costs, improve productivity and efficiency, and ensure that your equipment operates quietly and efficiently. In addition, it can also be compact in size and easy to install.

High productivity and efficiency

Compared to spur gears, helical gears have high productivity and efficiency. This is due to the fact that the helical gearbox is more effective at transferring power between right-angle configurations. Helical gears are also quieter. They also have the ability to tolerate a greater load. These gears are usually used in high-load applications, such as automotive transmission applications.
The basic features of helical gears include a slanted tooth face, a larger contact ratio, and a smoother performance. Helical gears are also less expensive than spur gears. They have more power carrying capacity, longer life, and are easier to maintain.
There are many factors that affect the efficiency of helical gearboxes. Some of them include the number of stages, reduction ratio, ambient conditions, and lubrication. They are also affected by the number of teeth.
Power loss in helical gears is mainly due to friction and heat. There are various approaches to minimize these losses. One approach is to analyse power losses using a numerical method.
Other factors that affect the efficiency of helical systems include speed, noise, and the number of teeth. The amount of power lost in gear mating is dependent on the load.

Low power consumption

Compared to other types of gearboxes, helical gearboxes have low power consumption. This is because they can tolerate more load, conduct smooth performance, and are quieter. They also require less oil changes and have a longer life span.
Helical gears have special teeth that are cut at an angle. The teeth are designed to engage gradually, rather than quickly. They can transfer power between parallel configurations and right-angle configurations.
Helical gearboxes are the most widely used gearboxes. They are also the most efficient. They can work at 98% efficiency. However, they are more expensive than spur gears. They can be packaged with oil-filled housings. They have less noise and require less maintenance. They can operate cooler, and have more torque capacity.
Helical gearboxes have two types: single and double helical gears. In the single type, the gears are perpendicular to the axis. They are usually used in automotive transmission applications. They can also be used in forward velocities. In the double type, the helical faces are next to each other.
Helical gears work at higher ratios, which increases their efficiency. They are also less noisy than spur gears. They are a good choice for applications that require high torque capacity. The basic efficiency of helical gearboxes ranges from 90% to 99.5%. They are also easier to operate and have a longer life span. They are suited to a wide range of applications.helical gearbox

Compact in size

Having a shiny new set of wheels is a nice change of pace. You get to sit in style and you get to drive it like the pro. The trick is finding the right one at the right time. Fortunately, there are plenty of companies who know how to build a high quality car that can be afforded by the average Joe. You’ll find all types of cars from sports coupes to hatchbacks. You’ll also find all types of drivers from the young professional to the seasoned veteran. You’ll also find all types of roads from main streets to back roads. There are even all types of parking spaces to choose from. With a bit of planning and some research, you’ll find the perfect fit for you and your family. You can’t help but wonder why you didn’t choose a vehicle with this many perks sooner. It’s a nice way to spend a night on the town, without having to worry about a parking fee. The next time you’re in the mood to take the family out to the country for a weekend in the great bluffs, you’ll know which ones to avoid.

Noise-free operation

Compared to spur gears, helical gears have better speed capability and quieter operation. However, helical gearboxes often have problems that stop their service. These faults result in increased productivity costs. These problems include fatigue, chipping tip, crack and missing tooth.
In this paper, we propose a novel signal processing scheme to detect gearbox faults at constant speed. The method involves the use of spectral subtraction (SS) to remove the spectral noise of a signal. This approach is widely used in speech signal processing. It is also used to estimate real-time noise information. The method was successfully applied to the analysis of gearbox faults.
The spectral subtraction technique is applied to the transmission error and to the side-band frequency feature. The side-band frequency is equal to the rotation frequency of the input shaft. A square envelope spectrum method is used to obtain the spectral feature. It was then used to obtain the corresponding fault signal. The method is then compared with experimentally measured noise data.
It is also important to note that the side-band feature is not stable in different noise levels. The optimal demodulation subband selection method is not obvious. However, the proposed method can obtain a stable amplitude value when SNR is low.
Another important factor that reduces noise is the overlap ratio. The overlap ratio is the sum of the transverse contact ratio and the face contact ratio. When the overlap ratio approaches one, the noise is minimized.

Improved performance at high speeds

Whether used in an industrial, automotive or power generation application, helical gearboxes provide a number of benefits over traditional spur gearing systems. These advantages include reduced noise, higher load capacity and smoother operation.
In an effort to reduce noise and improve performance at high speeds, Parker engineers developed a helical gearbox that runs quieter and produces 30-40% more torque than a conventionally modified gear. They also redesigned the entry and exit points of the gear tooth for increased efficiency and strength.
The high-speed helical geartrain has been tested at 5,000 hp power. The tests were performed in the High-Speed Helical Geartrain Test Facility at the NASA Glenn Research Center. The tests were conducted at four different design configurations and at multiple input shaft speeds. These tests included temperature increases from inlet to outlet, fling off temperatures, and power loss of the helical system.
The first step was to improve load distribution of the gear pair. This is done by modifying the microgeometry of each gear. In addition to modifying the microgeometry of each tooth, the length of the contact line was extended. This resulted in a higher tooth contact ratio.
Another option is to modify the straddle-mounted pin of the PGS. This is a complicated task because of spatial constraints. In order to determine whether the pin will have the desired effect, it needs to be tested in real-world tests.helical gearbox

Reduce maintenance costs

Compared to spur gears, helical gears have several advantages, such as less noise and vibration, greater load carrying capacity, and longer life. They also have a reduced maintenance cost.
Helical gears can be divided into two main types: single helical and crossed axis helicals. In the single helical type, two or three teeth connect at all times.
In crossed axis helicals, the shafts are inclined at a variety of angles. These gears are primarily used in non-perpendicular transmissions. They can have very low load carrying capacity, but they offer better strength and speed reduction than spur gears.
The double helical type has two mirrored rows of teeth that are angled. This type of gear is also known as a herringbone gear. It’s a design that’s ideal for non-perpendicular transmissions.
Helical gears are packaged in oil filled housings. They are a space saving gear reducer. They are used in automobile transmissions and other forward speeds. They are also used in industrial gearboxes.
Helical gears can be made of either solid or semi-solid materials. They can be sliced into an arbitrary number of cross sections. This allows the helix to be adjusted to suit the application.
It’s important to choose the right gear for your application. The gear’s design may include the number of teeth, lubricant type, surface treatment, and the tooth angle. It’s also important to choose the right lubricant, because it can affect the noise levels and the efficiency of the gear.
China OEM Kpm Series Hypoid Helical Gear Box (Ratio 7.5 to 300)   helical bevel gearbox efficiencyChina OEM Kpm Series Hypoid Helical Gear Box (Ratio 7.5 to 300)   helical bevel gearbox efficiency
editor by CX 2023-05-10

China OEM Agricultural Iron Helical Bevel Gear Box Used in Blender double helical gearbox

Product Description

Product Description

Company Profile

In 2571, HangZhou CZPT Machinery Co.,ltd was established by Ms. Iris and her 2 partners(Mr. Tian and Mr. Yang) in HangZhou city(ZHangZhoug province, China), all 3 Founders are engineers who have more than averaged 30 years of experience. Then because the requirements of business expansion, in 2014, it moved to the current Xihu (West Lake) Dis. Industrial Zone (HangZhou city, ZHangZhoug province, China).

Through our CZPT brand ND, CZPT Machinery delivers agricultural solutions to agriculture machinery manufacturer and distributors CZPT through a full line of spiral bevel gearboxes, straight bevel gearboxes, spur gearboxes, drive shafts, sheet metal, hydraulic cylinder, motors, tyre, worm gearboxes, worm operators etc. Products can be customized as request.

We, CZPT machinery established a complete quality management system and sales service network to provide clients with high-quality products and satisfactory service. Our products are sold in 40 provinces and municipalities in China and 36 countries and regions in the world, our main market is the European market.


Our Factory

Sample Room

Why choose us?

1) Customization: With a strong R&D team, and we can develop products as required. It only takes up to 7 days for us to design a set of drawings. The production time for new products is usually 50 days or less.

2) Quality: We have our own complete inspection and testing equipment, which can ensure the quality of the products.

3) Capacity: Our annual production capacity is over 500,000 sets, also, we also accept small quantity orders, to meet the needs of different customer’s purchase quantities.

4) Service: We focus on offering high-quality products. Our products are in line with international standards and are mainly exported to Europe, Australia, and other countries and regions.

5) Shipment: We are close to HangZhou and ZheJiang ports, to provide the fastest shipping service.

Packaging & Shipping


Q: Are you a trading company or manufacturer?
A: We’re factory and providing gearbox ODM & OEM services for the European market for more than 10 years

Q: 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.

Q: How long is your delivery time? What is your terms of payment?
A: Generally it is 40-45 days. The time may vary depending on the product and the level of customization.
For standard products, the payment is: 30% T/T in advance,balance before shipment.

Q: What is the exact MOQ or price for your product?
A: As an OEM company, we can provide and adapt our products to a wide range of needs.
Thus, MOQ and price may greatly vary with size, material and further specifications; For instance, costly products or standard products will usually have a lower MOQ. Please contact us with all relevant details to get the most accurate quotation.

If you have another question, please feel free to contact us.

Application: Machinery, Agricultural Machinery
Function: Distribution Power, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction, Speed Increase
Layout: Straight or Spiral Bevel Gear
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Step: Single-Step


Customized Request

What Is a Helical Gearbox?

Basically, a gearbox is a rotating circular machine part that consists of toothed components, which mesh together. Its function is to transfer speed and torque to other parts of the machine. It is also similar to a lever, and operates on the same principle.helical gearbox

Double helical gears

Having a helical gearbox has many advantages, including higher efficiency, high strength, and a superior gear system. However, it has its drawbacks. One of these drawbacks is the axial thrust. Axial thrust is not a problem with single helical gears, but it is a problem with double helical gears.
In double helical gears, there are two sets of teeth that are arranged in a V-shape. In one set of teeth, there is a groove that enables the axial force to be cancelled out. The groove eliminates the need for thrust bearings and allows for efficient handling of high capacity power transmission.
Aside from the axial thrust, there are also issues with face contact. Asymmetric load sharing and oscillation put substantial alternating loads on the shaft bearings. These alternating loads can lead to early bearing failure.
Fortunately, helical gears are smoother than spur gears, which means they can withstand more load. They also have greater pitch circle diameter than spur gears. However, they are limited in their scope. The pitch error distribution on the helical gears is typically limited to 50 mm peak-to-peak amplitude. It is important to control the phase difference of oncoming gears with high accuracy.
Typically, the helical gears that are used in a gear box are assembled from the same module. This allows for interchangeability of components and economical construction. A normal module set can use the same tooth-cutting tools that are used for spur gears.
Double helical gears are used in power transmission in fluid pumps and gas turbines. They are also commonly used in planetary reduction gear boxes for engines in civil aviation.
Generally, double helical gears are larger than single helical gears. They are typically generated from a special generator. They are also more expensive.
However, manufacturers are looking to find gears that are more convenient to use. One solution is to manufacture double helical gears on a multi-tasking machine tool. This allows the gear to be machined in complicated shapes.
The multi-tasking machine tool can also modify the tooth surface. This is useful for 3D printing helical gears with a high level of accuracy.helical gearbox

Crossed-axis helical gears

Several factors affect the performance of crossed-axis helical gears. One of the important factors is the position of the gears on the cross shaft. The gears will not perform properly if they are not oriented in a different direction.
Crossed-axis helical gears have a special situation, in which they will not function properly if the gears are oriented in the same direction. This is especially true for automobile oil pump/distribution shafts. Depending on the situation, gears will operate as a normal helical gear or as a spur gear.
Compared to spur gears, crossed-axis helical gears have relatively higher capacity. However, the transverse contact ratio of these gears is reduced. This decrease is dependent on the pressure angle. The pressure angle affects the curvature radii of the teeth. In addition, the length of the contact line is reduced. This shortens the efficiency of the gear.
Helix angle of crossed-axis helical gears is 45 degrees. It may be a left-handed or a right-handed gear. The pitch circle diameter of a helical gear may be big compared to that of a spur gear. This is due to the fact that the gears are cut at an angle to the shaft.
In the axial direction, the meshing of helical gears is very similar to spur gears. However, there are a few design rules to optimize these gears.
The first rule is that the gears must be staggered in opposite directions. If the gears are not staggered, the contact lines cannot be changed.
The second rule states that the pitch of a helical gear is dependent on its helix angle. It is possible to calculate the pitch circle of a helical gear, by integrating along the face width. In addition, the length of the contact lines decreases as the pressure angle increases. However, this decrease is not as large as that of a spur gear.

Right angle helical gears

Choosing a right angle helical gearbox can be difficult. With so many types, sizes, and configurations to choose from, it can be difficult to figure out which one is right for your application. The key to choosing the right gearbox is understanding your application and what factors are most important to you.
For example, if you are looking for a gearbox that can be used in a high-speed, high-torque application, the most important consideration is the efficiency of the product. Right-angle gearboxes are compact and easy to maintain, making them ideal for high-torque applications.
Some applications that require high-torque gears include pulp and paper manufacturing, food processing, mining, and car washes. Some of the advantages of right angle gears include high efficiency, low maintenance, and low noise. If you are in the market for a right angle helical gearbox, make sure to select a supplier that can provide you with a wide range of options.
Right-angle helical gearboxes come in several different bevel configurations. Spiral bevel gears require precision and are difficult to manufacture. However, they can be used interchangeably. Spiral miter gears are designed to rotate in the same direction as the input shaft, which helps ensure a smooth, direct transfer of power.
If you are considering a helical gearbox for a high-speed application, you will need to know your preferred input/output ratio. The standard ratios are 1:1 and 2:1. If you need a step-up ratio, you can install an additional output shaft opposite the input shaft.
Other benefits include lower running noise, superior strength, and durability. Because they are made of larger teeth, helical gears are less likely to wear out. Also, helical gears provide higher power carrying capacity.
To determine which type of right angle gearbox is best suited for your application, you should discuss your needs with your supplier. They should be able to offer a wide range of options, including custom solutions. They should also provide you with a list of past clients and online reviews.
To find a right angle helical gearbox that can meet your needs, it’s important to understand the various design features. For example, you should make sure that your gearbox has a self-locking capability, which means that the load cannot drive the worm. Having a self-locking gearbox also means that you do not need to install a braking system.helical gearbox

Spiral teeth

Using helical gearboxes to drive a motor car or truck is an efficient method of power transmission. However, the efficiency of this method depends on the helix angle of the gear. The helix angle is the angle that the gear teeth are cut at.
Helical gearboxes may be of different helix angles, depending on the specific gear set. The helix angle can vary between 15 and 30 degrees. This is important because the helix angle has a significant effect on the position of tooth contact. If the contact is not in a proper position, then there will be a large amount of vibration. This will affect the speed of the gear.
Helical gearboxes can be of two types: crossed axis and parallel axis. Crossed axis gears are usually used to connect parallel shafts. They have the same center gap as spur gears. On the other hand, parallel axis gears are usually used to drive a motor. The difference between the two types of gearboxes is their design and arrangement.
In addition to the helix angle, the gears may have different fillet, teeth, and radius. This means that the gear will have different NVH characteristics. In addition, there are different types of spiral teeth that may be used in the gearbox.
Hypoid gears are also similar to spiral bevel gears, but they differ in that the axes of the gear shaft do not intersect the axis of the hypoid gear. The hypoid gear exerts a very high thrust load on the bearings.
When compared to a straight bevel gear, the hypoid gear experience a smoother, less noisy operation. They also produce less shock loading.
Spiral bevel gears are also designed to produce less vibration. They are also more cost-effective. However, they require a larger diameter to transmit the same torque. This can lead to a reduced mechanical efficiency and lower fuel economy.
The best spiral bevel gears can carry a higher thrust load than straight teeth. This is why they are preferred for applications that require heavy load efficiency.
They are also appreciated for their NVH characteristics. They are also a quieter option for applications that require high speed. Helical gears can be used in many different industries. The food, automotive, and oil industries are examples of these types of gears.
China OEM Agricultural Iron Helical Bevel Gear Box Used in Blender   double helical gearboxChina OEM Agricultural Iron Helical Bevel Gear Box Used in Blender   double helical gearbox
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