Sprockets

  What is a Sprocket?

Basically, a sprocket is a grooved wheel with teeth that mesh with links to transfer motion between one wheel and another. These wheels are used in machinery to convey heavy loads.

They come in different designs and sizes and can be fabricated from a variety of materials. They are available in single strand, double strand, and triple strand. They can also be made of a single piece or a hub. They are usually flat or curved.

The most common type of sprocket is the roller chain sprocket. This type is typically found in transmission equipment. It operates along chains formed by rollers that are interconnected by pins. Each pin forms a gap which allows the teeth of the sprocket to move. These sprockets are often manufactured from cast iron, mild steel, or stainless steel.

Some sprockets are designed for multi-strand chains which drive higher torque. These sprockets can be found in power transmission equipment, agriculture equipment, and bicycles. They are also used in conveyor systems.

These sprockets are usually bolted back together to make installation easier. They are typically made from cast iron, graded stainless steel, or mild steel. The chain sprockets are characterized by high tensile strength and high wear resistance.

Some sprockets have a hub that helps to keep the sprockets from being overhung on the equipment. They are also available in a variety of tooth counts and diameters.

The chain sprockets are available in a variety of sizes, including smaller ones for ash-handling applications. They can also be installed by slackening the chain. Custom-made sprockets are also available a HZPT, one of the experienced China sprocket suppliers and manufacturers.

  Various Types of Sprockets for Sale

QD sprockets

Flat top sprockets

 Cast Sprockets 

The general manufacturing method of a large chain wheel is to cast the chain wheel body with a casting process. Its material is zg310-570. After casting, the chain wheel body shall be subject to annealing heat treatment, normalizing and tempering heat treatment, and processing screw holes. After that, the bolt shall be installed with the wheel body of the bucket wheel machine mechanism, and the chain wheel teeth shall be processed on the large gear milling machine, and finally, the tooth surface shall be quenched.

Common cast sprockets are as follows:

 Standard Sprockets 

• Single Double Sprockets
  • 40SD, 50SD, 60SD, 80SD
• Stainless Steel Sprockets
  • SUS25B, SUS35B, SUS40B, SUS50B, SUS60B, SUS80B
• EX Standard Sprockets B Type
  • EX35B, EX40B, EX50B, EX60B, EX80B, EX100B, EX120B, EX140B, EX160B, EX200
• Double Pitch Sprockets
  • NK2040SB, NK2050SB, NK2060SB, NK2080SB, NK2100SB, NK2040RB, NK2050RB, NK2060RB, NK2080RB, NK2100RB
• Double Pitch Sprockets (Stainless Steel)
  • SUS2040SB, SUS2050SB, SUS2060SB, SUS2040RB, SUS2050RB, SUS2060RB
• NKN Standard Sprockets
  • NKN35B, NKN40B, NKN50B, NKN60B
• FBN Standard Sprockets
  • FBN15B, FBN25B, FBN35B, FBN40B, FBN50B, FBN60B, FBN80B, FBN100, FBN120
• SUS FB Standard Sprockets
  • SUS FBP11B, SUS FBN25B, SUS FBN35B, SUS FBN40B, SUS FBN50B, SUS FBN60B, SUS FBN80B
• FB Double Pitch Sprockets
• FB Single Double Sprockets
• FBK Standard Sprockets
  • FBK35B, FBK40B, FBK50B, FBK60B, FBK80B

Agricultural Sprockets

 Non-standard Customized Sprockets

We are a professional China sprockets factory and able to try our best to meet your customization requirements. Contact us to get a quote!

 Reliable Sprocket Manufacturer

Services we can provide

1. Produce strictly following standard dimension
2. Material: 1045 Steel / Alloy Steel / Stainless Steel 304 & 316 
3. Standard: ANSI, DIN, JINS, ISO, KANA, Standard America, or customer’s drawing
4. Pilot bore, finished bore, taper bore, and special bore. 
5. Bright surface / high precision / Blacking /Electrophoretic-Coated
6. Advanced heat treatment and surface treatment craft
7. Best quality and competitive price. 
8. Welcome OEM / ODM 
9. Processing Equipment: Hobbing machine, Slotting machine, CNC lathes, and other equipment.
10. Sprocket Models: Contains special sprocket according to customer’s drawings, standard sprocket (American standard and metric).

How to Select Sprocket Material?

The sprocket material shall ensure that the teeth have sufficient strength and wear resistance, so the sprocket tooth surface is generally heat treated to achieve a certain hardness

The following table shows the heat treatment methods and applicable conditions of different materials.

Important Specifications of Sprocket

Sprocket specification information the sprocket assembly consists of two main components: sprocket and chain. The system will not normally work if the two parts cannot complement each other. When selecting a replacement sprocket or designing a new sprocket and chain assembly, several factors need to be considered, such as:

Number of shares
A chain is a row of teeth on the circumference of a sprocket. Many ordinary sprockets are single strand. Other sprockets may have double or three sprockets, which can grasp two or three chains simultaneously. The multi-strand chain can drive more torque and power from the common central shaft.
Caliper diameter
The caliper diameter is similar to the bottom diameter. It measures the diameter of the sprocket plate that does not include teeth. When the operator replaces a sprocket with worn and broken teeth, the caliper diameter may be the only way to determine the sprocket size.
Hub diameter
Hub diameter measures the diameter of the hub, that is, the additional thickness of the peripheral plate of the central hole of the B-type and C-type sprockets.

What is the Function of a Sprocket?

Essentially, a sprocket is a wheel with teeth that fit onto a drive shaft. When it rotates, the teeth lock on to the chain, causing it to pull. The wheels of a sprocket can be made of metal or reinforced plastic.

There are different types of sprockets, and each one has a different function. For example, a bicycle has two sprockets that are connected by a chain. These sprockets carry the rider’s weight and transmit the rotation of the bike to the wheels.

There are also roller chain sprockets, which operate along chains of pins. These sprockets are used in conveyor systems. They fit into the gaps between the chains and transfer movement energy. These sprockets are generally made of grade mild steel or grade stainless steel.

Another type of sprocket is the duplex sprocket. These are usually made of double-strand sprockets. They are available in a wide range of sizes and are often flame hardened.

Another type of sprocket includes the flat sprocket, which is attached to the hub of the bicycle. This type is designed to navigate holes and reduce wear on the bearings. These sprockets normally have a flange on the side. This flange helps to keep the timing belt in the right position.

There are also chain sprockets with an offset design, which are two hubs. These sprockets work with a chain, belt, or a combination of both. The type of sprocket that is used depends on the load conditions.

What is Sprocket Pitch?

The sprocket pitch diameter is the imaginary circle in which the center of the chain pin moves around the sprocket. The pitch circle diameter is the basic design geometry that determines the size shape and form of the sprocket tooth size.
Whether you are designing a new system or repairing an old one, sprocket pitch is a must-have measurement. Choosing the right sprocket for your machine will ensure safe and effective operation.

ANSI standards are the most common standard in the U.S., though other standards are sometimes required for specific applications. The British Standard Chain is the second most widely used. Unlike ANSI standards, the BSC does not generally use 1/8″ increments. It also does not apply to certain applications.

A sprocket with a larger pitch diameter will have wider teeth. This increases the stress on each tooth, which will lower the sprocket’s life. A larger sprocket will also be heavier. This means a larger chain will be required to accommodate the sprocket.

Choosing the sprocket with the proper diameter and pitch will determine whether the sprocket will fit. It is important to choose a sprocket that fits properly to prevent slippage.