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China factories

China factory - Hunan Dinghan New Material Technology Co., LTD

Hunan Dinghan New Material Technology Co., LTD

  • China,Changsha ,Hunan
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  3. >Ordinary 3-Speed Bicycle Gear Precision Machining Gear Internal Gear Hub
China Ordinary 3-Speed Bicycle Gear Precision Machining Gear Internal Gear Hub
China Ordinary 3-Speed Bicycle Gear Precision Machining Gear Internal Gear Hub

  1. China Ordinary 3-Speed Bicycle Gear Precision Machining Gear Internal Gear Hub
  2. China Ordinary 3-Speed Bicycle Gear Precision Machining Gear Internal Gear Hub

Ordinary 3-Speed Bicycle Gear Precision Machining Gear Internal Gear Hub

  1. MOQ： Negotiable
  2. Price： Negotiable
  3. Get Latest Price
Payment Terms T/T
Supply Ability Negotiable
Delivery Time Sample order: 7 days
Packaging Details According to customer's requirement
Material Steel
Shape Spiral
Process Cutting, hobbing, shaping, broaching.
Accuracy Grade ISO 6-7 Grade
Heat treatment Carburizing,quenching, carbonitriding, high-frequency, quenching, tempering etc
Service Customized
Brand Name SJ, DH
Certification ISO9001
Place of Origin Changsha, China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T Supply Ability Negotiable
Delivery Time Sample order: 7 days Packaging Details According to customer's requirement
Material Steel Shape Spiral
Process Cutting, hobbing, shaping, broaching. Accuracy Grade ISO 6-7 Grade
Heat treatment Carburizing,quenching, carbonitriding, high-frequency, quenching, tempering etc Service Customized
Brand Name SJ, DH Certification ISO9001
Place of Origin Changsha, China
High Light bicycle gear precision ，3-speed bicycle gear ，hub precision machining gear

Ordinary 3-Speed Bicycle Gear Precision Machining Gear Internal Gear Hub 

What are the characteristics of ordinary three-speed bicyle gears?
An ordinary three-speed bicyle gear, also known as an internal gear hub, is a type of gearing system commonly found on bicycles. Unlike external gears, which are visible on the outside of the bicycle, internal gear hubs house the gears within the rear hub of the bicycle wheel.
Gear Range: A three-speed gear system typically offers three different gear ratios that allow the rider to choose between low, medium, and high gears. These gears provide a range of options to tackle various terrains, including hills, flat roads, and downhill stretches.
Internal Gear Hub: The gears in a three-speed system are enclosed within the rear hub, protecting them from dirt, water, and other elements. This design makes the gears less prone to damage and requires less maintenance compared to external gear systems.
Simplicity and Ease of Use: Three-speed gears are known for their simplicity and user-friendly operation. Shifting between gears is usually accomplished with a twist grip or a thumb shifter, making it easy for riders to change gears while riding.

Reliable and Durable: Internal gear hubs are designed to be robust and durable, ensuring long-lasting performance. With fewer exposed components, the gears are less susceptible to damage from external factors, such as impacts or accidental contact.

Why choose us?
1.Internationally, power transmission gear devices are developing in the direction of miniaturization, high speed, and standardization. We are experts dedicated to high-quality small module gears. Our factory was founded in 1994 and has 30 years of industry experience.
2.Our company currently has one doctorate (member of the China Gear Standardization Technical Committee) and one graduate student engaged in bevel gear research. We have a complete set of software for digital closed-loop manufacturing of spiral bevel gears, specializing in gear R&D, design, strength verification and high-precision gear manufacturing.
3.Our company has a complete set of advanced production equipment and testing equipment such as multiple CNC 7-axis 5-linkage spiral bevel gear grinding and gear milling machines. It has successively developed high-quality products for users such as high reduction ratio, high speed, heavy load, low noise, and low number of teeth, which can meet the high-quality gear needs of industries such as reducers, industrial robots, industrial sewing machines, and model aircraft.

 
 

Ordinary 3-Speed Bicycle Gear Precision Machining Gear Internal Gear Hub
Specification
Material 20CrMnTi,42CrMo, 45# etc
Shape Spiral
Hardness Hardened
Surface Bright
Pressure Angle 20°, also can be customized
Accuracy Grade ISO 6-7 Grade
Module (M) ≤4
Heat Treatment Carburizing, quenching, carbonitriding, high-frequency, quenching, tempering etc.
Processing Cutting, hobbing, shaping, broaching.
Application Bicycles

 
 

Advanced manufacturing equipment
DH has multiple CNC 7-axis 5-linkage spiral bevel gear grinding machines and gear milling machines that can process high-reduction ratio hypoid and transverse cured tooth coupling. 

 

 

Advanced testing equipment
Utilize a high-precision gear measurement center to complete gear pitch accuracy detection, tooth profile error detection and inverse correction of tooth profile errors.

 
 
 

Professional software
Our factory has a complete set of software to realize digital closed-loop manufacturing of spiral bevel gears, Functions such as gear design, strength calculation, contact analysis, tool calculation, tooth profile error reversal, etc. can be realized. Machining methods include five tools machining(fixed setting) & G-plete of tapper , spiral format tilt(SFT) method & hypoid format tilt (HFT) method of Cycloid equidep, etc.

 

 

 

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter,Seller

  • Year Established:

    1994

  • Total Annual:

    70 million-100 million

  • Employee Number:

    50~60

  • Ecer Certification：

    Verified Supplier

Our company was formerly known as Changsha Double Star Gear Industrial Co., Ltd, which was established in 1994. It is a directly affiliated university-run enterprise founded by Central South University Professor Zeng Tao, the leading expert on spiral bevel gears in China. It was later renamed as Cha... Our company was formerly known as Changsha Double Star Gear Industrial Co., Ltd, which was established in 1994. It is a directly affiliated university-run enterprise founded by Central South University Professor Zeng Tao, the leading expert on spiral bevel gears in China. It was later renamed as Cha...

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Get in touch with us

  • Reach Us
  • Hunan Dinghan New Material Technology Co., LTD
  • No. 1519, Building 2, Dongfang Furong Garden, No. 582 Yuanda 1st Road, Hehuayuan Street,Furong District, Changsha city, Hunan, China.
  • MsJulia Wang
  • 0086-19707319542
  • https://www.gears-industrial.com/

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