Product Description

Customized OEM Forged Casting CHINAMFG Bevel Pinion Differential Straight Spiral Helical Hypoid Spline Shaft External Grinding Teeth Spur Worm Drive Gear

 

 

Product advantages & features

(1) Accessory products of the truck, use 20CrMmti material.
(2) Heat treatment and tempering, high gear root strength, stronger impact resistance.
(3) Multi-purpose CHINAMFG carburizing processing, fine grinding processing technology, effectively reducing noise.
(4) Test product 1 by one, and inspect each product on delivery to ensure 100% quality stability of the product.
(5) The unified brand carton, inner bag and integral foam packaging, which is strong and beautiful.
(6) Passed ISO/TS16949:2009 quality management system certification.
(7) Passed ISO/IEC17571:2005 certification.
(8) Certified by National Laboratory Accreditation Committee.
(9) “100 Auto Parts Suppliers” in China.
(10) China Machinery Top 500.
(11) National first-class measurement enterprise.
(12) National first-class physical and chemical enterprise.

Factory Show

More Products

 

Truck Model Sinotruk, Shacman, Saic Xihu (West Lake) Dis.n, Foton Auman, CHINAMFG Xihu (West Lake) Dis., Xihu (West Lake) Dis.feng, European & Japanese Truck Series, North BENZ( BEIBEN), JAC, etc.
Product catalogue Axle Wheel Assembly
Differential Assembly
Main Reducer Assembly
Inner Ring Gear& Bracket
Basin Angle Gear/ Bevel Gear
Axle Shaft/ Half Shaft & Through Shaft
Axle Housing& Axle Assembly
Steering knuckle & Front Axle
Gear
Brake Drum& Wheel Hub
Flange
Bearing
Main Reducer Housing
Oil Seal Seat
Nut& Shim Series
Brake Backing Plate
Chassis Support Products Leaf Spring Bracket
Drop Arm Series
Bracket Series
Leaf Spring Shackle Series
Balanced Suspension Series Balance Shaft Assembly
Balance Shaft Housing
Axle Spring Seat
Thrust Rod
Balance Shaft Parts
Shock Absorber Series Shock Absorber
Shock Absorbing Airbag
Steering System Power Steering Pump
Power Steering Gear
Rubber Products Oil Seal
Rubber Support
Thrust Rod Rubber Core
Truck Belt
Engine support
Other
Clutch Series Clutch Pressure Plate
Clutch Disc
Flywheel Assembly
Flywheel Ring Gear
Adjusting Arm Series  

 

Working Principle

Single reduction gear is a driving bevel gear (commonly known as angular gear) and a basin angle gear pair. The driving bevel gear is connected with the transmission shaft, rotates clockwise, sticks to its right side from the bevel gear, and rotates downward at the meshing point, which is consistent with the CHINAMFG direction of the wheel. Due to the small diameter of the driving bevel gear and the large diameter of the bevel gear, the function of deceleration is achieved.
The double reduction has an additional intermediate transition gear.The left side of the driving bevel gear is meshed with the bevel gear of the intermediate gear. The bevel gear is coaxial with a spur gear with small diameter, and the spur gear is meshed with the driven gear. In this way, the intermediate gear rotates backward and the driven gear rotates forward. There is a two-stage deceleration process in the middle.
Due to the increase of axle volume, double reduction was mainly used in vehicles with low engine power in the past, mainly in construction machinery with low speed and high torque.
In the double reduction final drive, if the second-stage deceleration is carried out near the wheel, it actually constitutes an independent part at the 2 wheels, it is called wheel reducer. The advantage of this is that the torque transmitted by the half shaft can be reduced, which is conducive to reducing the size and quality of the half shaft. The wheel reducer can be planetary gear type or composed of a pair of cylindrical gear pairs. When the cylindrical gear pair is used for wheel side deceleration, the up-down position relationship between the wheel axis and the half shaft can be changed by adjusting the mutual position of the 2 gears. This kind of axle is called portal axle, which is often used for vehicles with special requirements for the high and low position of the axle.
According to the number of the main reducer transmission ratio, it can be divided into single-speed and double-speed. 
Domestic cars basically adopt single speed main reducer with fixed transmission ratio. On the double reduction final drive, there are 2 transmission ratios for selection, and this main reducer actually acts as an auxiliary transmission.

Packaging & Shipping

Certifications

FAQ

Q1. How to guarantee your after-sales service?
Strict inspection during production, Strictly check the products before shipment to ensure our packaging in good condition. Track and receive feedback from customer regularly. Our products warranty is 365 days.
Each product provides quality assurance service. If there is a problem with the product within the warranty period, the customer can negotiate with us in detail about the related claims, and we will do our best to satisfy the customer.

Q2. How can I accurately buy the products I need?
We need accurate product number, If you can’t provide product number, you can send us your product picture, or tell us your truck model, engine name plate, and so on. we will
determine exactly what you need products.

Q3. Do you accept third party inspection?
Yes.we do

Q4. How about your delivery time?
Generally, it will take 3 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q5. What are your brand agency conditions and advantages?
After we CHINAMFG an agent in 1 city, we will not CHINAMFG a second company to protect the agent’s brand advantage and price advantage. And we will help the agent develop customers and solve all kinds of difficult and miscellaneous problems about products.

Q6. What is your terms of payment?
By TT or LC. We’ll show you the photos of the products and packages before you pay the balance.

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Application: Heavy Duty Truck Parts
Hardness: Hardened Tooth Surface
Gear Position: Internal Gear, External Gear
Samples:
US$ 25/Piece
1 Piece(Min.Order)

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Order Sample

Customization:
Available

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Customized Request

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

crown gear

Can crown gears be used in automotive applications?

Yes, crown gears can be used in automotive applications, and they serve various purposes within the automotive systems. Let’s explore how crown gears are utilized in the automotive industry:

  • Differential Gear Systems:

Crown gears are commonly employed in differential gear systems. The differential is a critical component in vehicles that enables the wheels to rotate at different speeds while maintaining power distribution. Crown gears, along with bevel gears, form the gear set within the differential, allowing the power from the engine to be split and distributed to the wheels effectively. The use of crown gears in differentials ensures smooth power transmission and enables improved handling, traction, and stability of the vehicle.

  • Power Steering Systems:

Crown gears can also be found in power steering systems, particularly in rack-and-pinion setups. In such systems, the crown gear is an integral part of the rack, and it meshes with the pinion gear to convert the rotational motion of the steering wheel into linear motion. The use of crown gears in power steering systems allows for precise and responsive steering control, enhancing the overall driving experience.

  • Timing Gear Systems:

Crown gears are utilized in timing gear systems of internal combustion engines. These systems synchronize the opening and closing of engine valves with the movement of the crankshaft. Crown gears, along with other gears like spur gears or helical gears, are employed to transfer rotational motion from the crankshaft to the camshaft(s). The accurate timing and synchronization provided by crown gears ensure efficient engine performance and optimal combustion.

  • Other Applications:

Besides the specific automotive systems mentioned above, crown gears can also find use in other applications within vehicles. They may be employed in speedometers, odometers, and various instrument clusters to transfer and display speed or distance information accurately. Additionally, crown gears can be utilized in adjustable seating mechanisms, convertible tops, or other motorized components in vehicles.

In summary, crown gears have diverse applications in the automotive industry. Whether in differential gear systems, power steering systems, timing gear systems, or other vehicle components, crown gears contribute to improved power distribution, precise steering control, efficient engine performance, and accurate information display. Their reliability, durability, and ability to handle high loads make them suitable for fulfilling the demanding requirements of automotive applications.

crown gear

What are the challenges in designing and manufacturing crown gears?

The design and manufacturing of crown gears come with certain challenges that engineers and manufacturers need to address. Let’s explore the challenges involved in designing and manufacturing crown gears:

  • Complex Tooth Geometry:

Crown gears have a complex tooth geometry compared to other gear types. The curved shape of the teeth requires precise calculations and design considerations to ensure proper meshing and optimal performance. Designing and modeling these intricate tooth profiles can be challenging, requiring advanced software tools and expertise.

  • Manufacturing Tolerances:

Manufacturing crown gears with tight tolerances is crucial to achieve smooth and accurate meshing with other gears. The curved tooth profile and perpendicular orientation require precise machining or gear cutting processes. Maintaining the necessary tolerances throughout the manufacturing process can be challenging and may require specialized equipment or techniques.

  • Noise and Vibration:

Due to the complex tooth geometry and meshing characteristics, crown gears can generate noise and vibration during operation. Ensuring quiet and vibration-free performance is essential, especially in applications where noise reduction is critical. Designing and manufacturing crown gears with appropriate tooth profiles, surface finishes, and gear materials can help mitigate noise and vibration issues.

  • Stress Concentrations:

Crown gears are susceptible to stress concentrations at the tooth root and fillet areas. The high contact stresses occurring during meshing can lead to premature tooth failure or wear. Designing proper fillet radii, optimizing tooth profiles, and selecting suitable materials and heat treatments are important considerations to minimize stress concentrations and enhance gear strength and durability.

  • Heat Treatment and Surface Hardening:

Achieving the desired surface hardness and wear resistance of crown gears can be challenging. Heat treatment processes, such as carburizing or induction hardening, need to be carefully controlled to ensure uniform hardness distribution and avoid distortion. Balancing the gear’s core toughness with the surface hardness is critical to maintain gear integrity and performance.

  • Lubrication and Maintenance:

Crown gears require proper lubrication to reduce friction, wear, and heat generation during operation. Designing gear systems with adequate lubrication mechanisms, such as oil baths or forced lubrication, is crucial. Additionally, considering maintenance requirements, such as accessibility for lubrication and gear inspection, is important to ensure the long-term performance and reliability of crown gears.

In summary, designing and manufacturing crown gears present challenges related to complex tooth geometry, manufacturing tolerances, noise and vibration, stress concentrations, heat treatment, surface hardening, lubrication, and maintenance. Overcoming these challenges requires careful design considerations, precise manufacturing processes, and suitable material selection to ensure the optimal performance, durability, and reliability of crown gears in gear systems.

crown gear

Can you explain the unique design and shape of crown gears?

The design and shape of crown gears are indeed unique and distinguishable from other types of gears. Let’s delve into the characteristics that define the unique design and shape of crown gears:

  • Tooth Orientation:

One of the key features of crown gears is their tooth orientation. Unlike other gears such as spur gears or bevel gears, where the teeth are parallel or at an angle to the gear’s axis, crown gears have teeth perpendicular to the gear’s face. This perpendicular tooth orientation allows for specific functionalities in mechanical systems.

  • Teeth Shape:

The teeth of a crown gear are shaped like segments of a cylinder. They have a curved profile that matches the circumference of the gear. This unique tooth shape ensures smooth engagement and meshing with other gears, facilitating reliable torque transmission and rotational motion transfer.

  • Gear Face:

Crown gears have a flat gear face where the teeth are positioned. The gear face is perpendicular to the gear’s axis and provides a stable surface for the meshing of other gears. The flat gear face allows for effective contact and force distribution when the crown gear engages with other gears in a mechanical system.

  • Meshing with Other Gears:

The design of crown gears enables them to mesh with other gears in a unique manner. Crown gears can mesh with gears that have parallel axes or bevel gears with intersecting axes. The perpendicular tooth orientation and the curved tooth shape facilitate smooth and efficient meshing, allowing the transfer of torque and rotational motion between different gear types.

  • Application-Specific Modifications:

While the basic design and shape of crown gears are consistent, they can be modified or customized for specific applications. This may include alterations in the tooth profile, tooth size, or gear dimensions to suit the requirements of the machinery or system in which they are used.

In summary, crown gears possess a unique design and shape characterized by perpendicular tooth orientation, curved tooth profile, a flat gear face, and compatibility with different gear types. These features contribute to the effective engagement, smooth meshing, and reliable transmission of torque and motion in mechanical systems.

China Professional Customized OEM Forged Casting CZPT Bevel Pinion Differential Straight Spiral Helical Hypoid Spline Shaft External Grinding Teeth Spur Worm Drive Gear with Good qualityChina Professional Customized OEM Forged Casting CZPT Bevel Pinion Differential Straight Spiral Helical Hypoid Spline Shaft External Grinding Teeth Spur Worm Drive Gear with Good quality
editor by CX 2024-03-26