Bike Helical Bevel Gear Set For Seven-Speed Bike

Bike Helical Bevel Gear Set Of Gear For Seven-Speed Bike

In a seven-speed bicycle, bevel gears are not typically used as part of the primary gear system. Instead, seven-speed bicycles commonly utilize either an external derailleur system or an internally geared hub to achieve the seven-speed options. However, there could be variations or customizations of bicycles that incorporate bevel gears for specific purposes.

If bevel gears are present in a seven-speed bicycle, their role would typically involve one or more of the following functions:

1. Power Transmission: Bevel gears can be used to transmit power from the pedals to the gear system or from the gear system to the rear wheel. They enable the transfer of rotational motion and torque between different components of the bicycle.
2. Direction Change: Bevel gears are capable of changing the direction of motion at different angles. In a bicycle, they can be used to redirect the rotational motion from the pedals to the gear system or from the gear system to the rear wheel, allowing for efficient power transfer.
3. Secondary Gear System: While the primary gear system in a seven-speed bicycle is typically achieved through an external derailleur or an internally geared hub, bevel gears could be used as part of a secondary gear system. This secondary system could provide additional gear ratios beyond the primary seven-speed range, allowing for finer adjustments in gear ratio and optimizing the rider's experience.

A seven-speed bicycle refers to a bicycle that offers seven different gear ratios or speeds for the rider to choose from. These bicycles are designed to provide versatility in adapting to various terrains, riding conditions, and personal preferences. Here are some key aspects of a seven-speed bicycle:

1. Gear Shifting Mechanism: Seven-speed bicycles typically use either an external derailleur system or an internally geared hub for shifting between the seven gears.

• External Derailleur System: Many seven-speed bicycles employ an external derailleur system. This system consists of a rear derailleur that moves the chain between different cogs on the rear wheel. The rider can change gears by operating a shifter on the handlebars, which controls the movement of the chain.
• Internally Geared Hub: Some seven-speed bicycles use an internally geared hub, such as the Shimano Nexus or Alfine systems. These hubs contain the gears within the rear hub itself, protected from external elements. Gear shifting is achieved by operating a shifter on the handlebars, which changes the internal gears.

2. Gear Ratios: The seven-speed gear system provides a range of gear ratios to accommodate different riding conditions. The specific gear ratios can vary depending on the bicycle model and the gear shifting system used. The lower gears offer easier pedaling for uphill climbs or slower speeds, while the higher gears provide higher speed and efficiency for flat terrain or downhill descents.
3. Riding Experience: A seven-speed bicycle offers a moderate range of gears, making it suitable for a variety of riding situations. It allows riders to find the right gear ratio for different terrains, enabling comfortable pedaling cadence and efficient power transfer. Seven-speed bicycles are commonly used for commuting, recreational riding, and general-purpose cycling.
4. Maintenance: The maintenance requirements of a seven-speed bicycle depend on the type of gear shifting system used. Bicycles with external derailleurs may require more frequent adjustments and cleaning due to their exposed nature. Internally geared hub systems generally require less maintenance, with the gears enclosed and protected from external elements.

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 Changsha Senjie Gear Co., Ltd (abbreviated as "CSG") in 2016. CSG is a production R&D base specializing in professional design, reserch, manufacture and sales of high-quality small module spiral bevel gears and high reduction hypoid gears and cylindrical gears. In 2023, Hunan Dinghan New Material Technology Co., Ltd. was established as a specialized international export business department. CSG has strong scientific research and development capabilities and is also equipped a full set of advanced equipment including seven-axis five-linkage CNC spiral bevel gear grinding machines and gear milling machines. By making the best use of the scientific and technological achievements and equipment of the Gear Research Institute of Central South University, machanical processing, heat treatment and testing. We have developed high-quality products featuring high reduction, high speed, heavy load, low noise and less teeth for users.

With the quality policy of "scientific and technological innovation, quality first, being first-class firm and customer‘s satisfaction", we have won the trust of well-known domestic and abroad enterprises with stable and excellent quality. It is committed to be a pioneer of the industry of China's small-module spiral bevel gears, and is dedicated to providing service for any related industry requiring industrial robots, CNC turning and milling compound power tool turrets, industrial sewing machines, reducers, bicycles, power tools and aeromodelling. We sincerely look forward to your cooperation!