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

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.

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.

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.

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. 

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.