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What are Track Bike Hubs?
Track Bike Hubs are core components for non-gear track bikes (track bikes), which directly affect the power transmission and stability of riding. Unlike ordinary road or mountain bikes, track bikes are designed for indoor wooden or concrete tracks, emphasizing speed and rigidity, so their hubs have special requirements in structure, Material and precision.
The role of Track Bike Hubs
The hub is the core of the wheel, connecting the rim and the frame, and providing smooth rotation through bearings. For track bikes, the hub must meet the following functions:
Efficient power transmission: Since track bikes use fixed gears, the pedals and the rear wheel are always synchronized, so the hub must have high rigidity to ensure that every force can be efficiently transmitted to the wheel set.
Low rolling resistance: High-quality bearings and precision-machined hub shells reduce friction and improve riding efficiency.
High strength and light weight: Fast acceleration and high-speed stability are required on the field, so the hub material must be light and strong to reduce the weight of the vehicle and withstand high-speed impact.
Differences Between Track Bike Hubs and Regular Bike Hubs
| Feature | Track Bike Hubs | Regular Bike Hubs |
|---|---|---|
| Gear Mechanism | Fixed-gear, no freewheel | Freewheel or cassette mechanism |
| Bearings | High-precision sealed bearings, low friction | Standard ball bearings or industrial bearings |
| Rigidity | High rigidity to minimize flex | Moderate rigidity for comfort |
| Compatibility | Designed for high-pressure tires and stiff wheelsets | Supports a variety of tires and suspension systems |
| Weight Optimization | CNC-machined for weight reduction | Balanced between durability and weight |
Key Components of Track Bike Hubs
Hub Shell
The hub shell is the main component connecting the wheel set and the axle. It requires high-strength, lightweight materials, such as 6061 or 7075 aluminum alloy, to reduce weight and improve rigidity.
CNC Machining can ensure the symmetry and strength of the hub shell, reduce deflection, and improve stability.
Bearings
Use high-precision sealed bearings, such as ceramic bearings or high-grade stainless steel bearings, to reduce friction and improve transmission efficiency.
CNC Machining can accurately control the tolerance of the bearing seat, making the bearing assembly more accurate, reducing deviation, and improving the smoothness of rotation.
Axle
The axle connects the hub to the frame and is usually made of high-strength Cr-Mo Steel (Cr-Mo Steel) or titanium alloy to improve durability and rigidity.
CNC machining can ensure the concentricity of the axle, make the force uniform, and avoid damage due to stress concentration.
Locknuts are made of aluminum alloy or titanium alloy and are CNC precision machined to reduce weight and improve locking stability to prevent loosening.
As China's leading CNC precision machining supplier, JeaSnn uses advanced CNC technology to optimize the performance of Track Bike Hubs, as shown below:
The tolerance of CNC machining can reach ±0.01mm, ensuring the perfect match of the hub components, reducing assembly errors and improving overall rigidity.
The high-precision machining of the bearing seat ensures smooth operation of the bearing, reduces friction loss and improves riding efficiency.
Improved durability
The use of high-strength aluminum alloy or titanium alloy, and CNC Milling composite machining to reduce internal stress and improve impact resistance.
Surface treatment such as anodizing or DLC (diamond-like carbon coating) increases wear resistance and corrosion resistance and extends service life.
Lightweight design
Through CNC precision hollow structure, the weight distribution of the hub is optimized, while ensuring strength, unnecessary materials are reduced, and acceleration response is improved.
Customizable production
JeaSnn provides personalized customization services, and can adjust the size, tolerance, surface treatment, etc. according to customer needs to meet the specific needs of professional track riders.
Key Materials and CNC Processing Technology
Aluminum Alloy (6061/7075)
Lightweight and high-strength, anodized after CNC processing to improve wear resistance and corrosion resistance.
Titanium Alloy (Ti-6Al-4V)
With extremely high strength-to-weight ratio and corrosion resistance, suitable for high-end Track Bike Hubs.
Cr-Mo Steel
High-strength and impact-resistant material, mostly used for axles and locking components, CNC processing can ensure precise tolerances and enhance durability.
CNC Processing Technology
Five-axis CNC machining: used for hub shell machining with complex geometric structures to improve accuracy and consistency.
CNC Turning: Processing the axle and threaded parts to ensure concentricity and thread accuracy.
CNC Milling: Used to manufacture high-precision bearing seats to improve assembly quality.
JeaSnn Track Bike Hubs Product Features
High Precision: CNC machining accuracy can reach ±0.01mm, ensuring perfect coordination of all parts of the hub and improving transmission efficiency.
Durability: High-strength materials are used and surface treatment (anodized/DLC coating) is performed to extend service life.
Ultra-low friction: Precision bearing seats and high-end sealed bearings reduce rolling resistance and improve riding smoothness.
Lightweight design: Optimize structure, reduce vehicle weight, and improve riding acceleration performance.
Customizable: Support customers to customize colors, specifications, bearing types, etc. to meet personalized needs.
Track Bike Hubs are key components of track bicycles, and their performance directly affects riding speed and stability. Through CNC precision machining, the precision, durability and lightness of the hub can be greatly improved. As China's leading CNC precision machining supplier, JeaSnn provides high-quality, customizable Track Bike Hubs to help professional riders achieve better performance on the field.
FAQ
Why does my Track Bike Hub make strange noises when riding?
The strange noises may be caused by the following reasons:
Dry or damaged bearings → Solution: Check and add lubricant, replace bearings if necessary.
Loose axle or lock nut → Solution: Tighten the nut with a wrench to ensure the wheelset is stable.
Loose hub shell or gear → Solution: Check the fixing screws and re-tighten.
Why does my rear wheel shake when riding?
The main possible reasons include:
Worn or loose bearings → Solution: Replace high-precision bearings and ensure correct installation.
The wheel set is not installed correctly → Solution: Re-adjust the rear wheel position and ensure it is tight.
Deformed axle → Solution: Check if the axle is bent, and replace it with a new axle if it is damaged.
Why does my hub not turn smoothly and there is resistance?
Possible reasons include:
Bearing contamination or lack of lubrication → Solution: Remove the bearing, clean and re-lubricate or replace it.
The bearing seat tolerance does not match → Solution: Choose a high-precision CNC-processed hub to ensure accurate bearing installation.
Over-tightening the axle → Solution: Properly adjust the force of the locking nut to avoid over-tightening and increased friction.
Why are my hub bearings easily damaged?
Common reasons include:
Water or dust entering the bearings → Solution: Use bearings with better sealing, clean and maintain regularly.
Low-quality bearing material → Solution: Use high-end ceramic or stainless steel bearings to improve durability.
Long-term high-load use → Solution: Check and replace bearings regularly to avoid overload use.
How often does the Track Bike Hub need maintenance?
Ordinary riders: It is recommended to check the bearing condition every 3-6 months, clean and lubricate.
High-intensity training or competition athletes: It is recommended to check once a month and ensure that the hub is in optimal condition before each competition.
My hub axle broke, what could be the reason?
Insufficient strength of the axle material → Solution: Use a high-strength chrome-molybdenum steel or titanium alloy axle that is precision-processed by CNC.
Uneven force on the axle → Solution: Make sure the wheels are aligned and check if the frame is deformed.
Frequent high-power sprints → Solution: Choose a stronger hub axle and distribute the force appropriately.
