China OEM Titanium Gr5 Tc4 Bike Accessories Bicycle OEM Parts Chainwheel Rear Sprocket

Product Description

Material 1) Aluminum: AL 6061-T6, 6063, 7075-T etc.
2) Stainless steel: 303,304,316L, 17-4(SUS630) etc.
3) Steel: 4140, Q235, Q345B,20#,45# etc.
4) Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc.
5) Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90) etc.
6) Copper, bronze, Magnesium alloy, Delrin, POM,Acrylic, PC, etc.
Finish Sandblasting, Anodize color, Blackenning, Zinc/Nickl Plating, Polish.
Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing.
Electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench).
Electro Polishing,Chrome Plating, Knurl, Laser etch Logo, etc.
Main Equipment CNC Machining center(Milling), CNC Lathe, Grinding machine.
Cylindrical grinder machine, Drilling machine, Laser Cutting Machine,etc.
Drawing format STEP,STP,GIS,CAD,PDF,DWG,DXF etc or samples. 
Tolerance +/-0.01mm ~ +/-0.05mm
Surface roughness  Ra 0.1~3.2
Inspection Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier,CMM.
Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge.
Capacity CNC turning work range: φ0.5mm-φ150mm*300mm.
CNC milling work range: 510mm*1571mm*500mm.

 

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FAQ

Q1:What’s kinds of information you need for quotation?
HVS: You can provide 2D/3D drawing or send your sample to our factory, then we can make according to your sample.

 

Q2: Can we sign NDA?
HVS: Sure. We never divulge customers’ information to anyone else.

 

Q3: Do you provide sample?
HVS: Yes, we can provide you sample before mass order.

 

Q4: How can you ensure the quality?
HVS: We have profesional QC department to guarantee the quality.

 

Q5: Delivery time?
HVS: If in Stock: around 3 days after payment. Mass production: around 20~25 days after receipt of deposit (Accurate delivery time depends on specific items and quantities)

 

Q6: How about the transportation?
HVS: You can choose any mode of transportation you want, sea delivery, air delivery or door to door express.

 

After-sales Service: N.a.
Warranty: N.a.
Condition: New
Certification: CE, RoHS, ISO9001, IATF 16949
Standard: DIN, ASTM, GOST, GB, JIS, ANSI, BS
Customized: Customized
Samples:
US$ 10/Piece
1 Piece(Min.Order)

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Customization:
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bike sprocket

What are the signs of wear and tear in bike sprockets and how do I identify them?

Bike sprockets, also known as cassette sprockets or cogs, are an essential part of the drivetrain that can experience wear and tear over time. Regular inspection can help you identify signs of sprocket wear and determine when replacement is necessary. Here are the common signs of wear and tear in bike sprockets:

  • Hooked Teeth: Inspect the teeth of the sprockets. If you notice that the teeth have a hooked or shark fin-like appearance, it indicates significant wear. This occurs due to the chain wearing down the metal over time.
  • Pointed Teeth: Pointed teeth are another sign of wear, where the tops of the teeth become sharp and pointed instead of having a flat profile.
  • Worn Teeth: Look for flattened or thinned-out teeth, especially in the middle of the sprockets. Worn teeth can affect the chain’s engagement and lead to poor shifting performance.
  • Missing Teeth: If any teeth are completely missing from the sprocket, it’s a clear sign of excessive wear and a replacement is necessary.
  • Chain Skipping: When riding, if the chain skips or jumps over the sprockets, it indicates that the sprockets’ teeth are worn and no longer providing a smooth engagement with the chain.
  • Noisy Shifting: If you notice unusual noise during shifting, it could be due to the chain not meshing properly with the worn sprocket teeth.
  • Chain Elongation: Excessive sprocket wear can accelerate chain elongation, leading to further wear on the sprockets. If you notice your chain has elongated significantly, it’s time to inspect the sprockets for wear.

To identify these signs of wear, you can visually inspect the sprockets. You may need to remove the rear wheel and carefully examine the cassette or freewheel sprockets. Look for any irregularities in the teeth, and run your fingers along the tops of the teeth to feel for sharp points or rough edges.

Regular maintenance and cleaning of your bike’s drivetrain can help identify sprocket wear early on. By keeping the drivetrain clean, properly lubricated, and regularly replacing the chain, you can extend the life of your sprockets and other drivetrain components.

If you notice any of these signs of wear, it’s best to replace the worn sprockets promptly. Replacing sprockets before they become excessively worn can help maintain smooth shifting performance and prolong the life of the entire drivetrain.

bike sprocket

How do I know if my bike sprockets are compatible with my chain and derailleurs?

Ensuring compatibility between bike sprockets, chains, and derailleurs is essential for smooth and efficient gear shifting. Here are the steps to determine if your bike sprockets are compatible:

1. Sprocket Type: Identify the type of sprocket setup on your bike. Most modern bicycles use cassette-style sprockets on the rear wheel and one to three chainrings at the front crankset. Make sure you know the number of sprockets on your cassette and the number of chainrings on your crankset.

2. Chain Speed: Check the speed of your bike’s chain. This refers to the number of rear sprockets and the corresponding chain width. Common chain speeds for modern bikes are 8-speed, 9-speed, 10-speed, 11-speed, or 12-speed. The chain speed must match the number of sprockets on the rear cassette.

3. Chain Width: Ensure that the chain width corresponds to the chain speed. For example, an 8-speed chain is wider than a 10-speed chain. Using the correct chain width is crucial for proper engagement with the sprockets and chainrings.

4. Derailleur Compatibility: Check if your derailleurs are compatible with the number of sprockets on the cassette and the chainrings. Different chain speeds require derailleurs with specific capacity and range to accommodate the various gear ratios.

5. Teeth Count: Consider the number of teeth on your chainrings and cassette sprockets. The chainrings’ teeth count affects the bike’s gear range and overall gearing ratios. Make sure the combination of chainrings and cassette sprockets provides the desired gear ratios for your riding style and terrain.

6. Brand and Model: When replacing sprockets, chains, or derailleurs, try to use components from the same brand and model series. Mixing different brands or models may lead to compatibility issues, affecting shifting performance.

7. Seek Professional Advice: If you are unsure about compatibility or need to make significant changes to your bike’s sprocket setup, it’s advisable to seek the advice of a professional bike mechanic or a knowledgeable cycling specialist. They can help you choose the appropriate components and ensure compatibility between the sprockets, chain, and derailleurs.

Proper compatibility between sprockets, chains, and derailleurs is crucial for optimal performance, smooth gear shifting, and overall riding experience. Taking the time to ensure compatibility and using quality components will contribute to a more enjoyable and efficient cycling experience.

bike sprocket

Can you explain the function of front and rear bike sprockets?

In a bicycle’s drivetrain, both front and rear sprockets play crucial roles in determining the bike’s gear ratios and overall performance. Let’s look at the functions of each:

1. Front Sprockets (Chainrings):

Front sprockets, also known as chainrings, are located at the crankset, which is attached to the bicycle’s pedals. They come in various sizes, commonly referred to by the number of teeth they have. The main function of the front sprockets is to transfer the rider’s pedaling power to the rear wheel through the chain. Here’s how they work:

  • Gear Ratio Selection: Bicycles often have multiple chainrings with different tooth counts. By shifting the chain between these chainrings using the front derailleur, the rider can choose different gear ratios. Smaller chainrings are typically used for easier climbing and lower speeds, while larger chainrings provide higher speeds on flat terrain or descents.
  • Change in Gear Ratios: When the chain moves between different-sized chainrings, the effective gear ratio changes. Moving to a larger chainring provides a higher gear, requiring more effort but enabling faster speeds. Conversely, shifting to a smaller chainring gives a lower gear, requiring less effort but offering easier pedaling, especially on inclines.

2. Rear Sprockets (Cassette):

The rear sprockets are part of the cassette, which is mounted on the rear wheel’s hub. Like the front sprockets, the rear sprockets also come in different sizes, with each sprocket having a specific number of teeth. The functions of the rear sprockets are as follows:

  • Gear Ratio Fine-Tuning: The cassette offers more gear ratio options, providing finer adjustments to the bike’s gearing. By shifting the chain between different sprockets using the rear derailleur, the rider can fine-tune their gear ratio to match the terrain and riding conditions more precisely.
  • Combination with Front Sprockets: The interaction between the front and rear sprockets allows for a wide range of gear ratios. By selecting an appropriate combination of front and rear sprockets, cyclists can optimize their pedaling efficiency, maintain a consistent cadence, and achieve comfortable speeds for different situations.

Together, the front and rear sprockets form the bicycle’s gear system, enabling riders to tackle various terrains and adapt their pedaling effort to different riding conditions. By understanding how to use the sprockets effectively, cyclists can make the most out of their bike’s capabilities and enjoy a smoother, more efficient, and enjoyable riding experience.

China OEM Titanium Gr5 Tc4 Bike Accessories Bicycle OEM Parts Chainwheel Rear Sprocket  China OEM Titanium Gr5 Tc4 Bike Accessories Bicycle OEM Parts Chainwheel Rear Sprocket
editor by CX 2023-10-24