Sprockets are used primarily in chain driven systems to transmit power or rotation to other shafts . An example is a bicycle sprocket that transmits rotation from the pedals to the wheel. Sprockets may also be used to convey material from place-to-place as in the case of overhead conveyors.
How does a sprocket and chain work?
A sprocket is a toothed wheel that fits onto a shaft. It is prevented from rotating on the shaft by a key that fits into keyways in the sprocket and shaft. A chain is used to connect two sprockets . ... Chains that are used to transmit motion and force from one sprocket to another are called power transmission chains.
What is a chain sprocket?
Sprockets are sturdy wheels with teeth that lock onto a chain . As the sprocket spins, the teeth grab onto the chain and move other parts that interlock with the chain. ... Sprockets are often made from metal or reinforced plastics that can withstand the force of moving the chain.
What is roller chain sprocket?
One of the questions we've run into from time to time is, “What are chain sprockets (or roller chain sprockets)?” Roller chain sprockets are, simply put, any wheel with teeth that mesh with a chain , although sometimes they are also run in conjunction with a track or other perforated material.
Is it necessary to change chain sprocket?
It's never a bad idea to replace the chain and both sprockets as a set , but if you've stayed on top of chain maintenance, it's possible you could save some bucks and not have to replace both sprockets. ... Irregular looking teeth that are hooked or sharp means that the sprocket is toast.
What are the disadvantages of chain drive?
- They can not be used where slip is the system requirement.
- They require precise alignment compared to belt drives.
- They require frequent lubrication.
- They have less load capacity compared with gear drives.
- Their operation is noisy and can cause vibrations.
What sprocket is best for speed?
For more top end and faster top speed, use a large countershaft/front sprocket or smaller rear sprocket . This creates a taller gearing ratio that's best for high speed situations without many tight turns like wide open desert racing.
What are the advantages and disadvantages of chain drive?
- No slip and creep during the power transmission, it ensure the perfect velocity ratio. ...
- High transmission efficiency than friction drive.
- They can be operated under adverse thermal and atmospheric conditions.
- It can operate under wet conditions.
Where is a chain drive used?
Chain drive is a way of transmitting mechanical power from one place to another. It is often used to convey power to the wheels of a vehicle , particularly bicycles and motorcycles. It is also used in a wide variety of machines besides vehicles.
How do I choose a sprocket chain?
- Selection Procedure. ...
- Determine the Class of Load. ...
- Lubricant. ...
- Note : If table 1 does not list your equipment, go by its similarity to a listed item.
- Establish the Design Horsepower. ...
- Final Selection of Chain. ...
- Select the Large Sprocket. ...
- Determine Chain Length.
How do you read a sprocket number?
The sprocket size represents the first two digits in the chain designation . Example: 40A14 is size 40. The number of teeth represents the last two digits in the chain designation. Count the number of teeth.
Is standard for chain sprocket?
ANSI covers eight different strand types of sprockets: single-strand, double-strand, triple-strand, and multiple-strand (4, 5, 6, 8, 10). ... The right-hand digit of the number designates the type of chain to use with the sprocket, with 0 for standard chain , 1 for lightweight chain, and 5 for rollerless, bushed chain.
What is the life of chain sprocket?
A common rule is to replace both front and rear sprockets every time you replace your chain. This is a good rule to follow if your chain has lasted for its full life of, say, 15,000 miles . But, sometimes a sprocket replacement can wait in cases where you're replacing a prematurely worn chain.
How long does a chain and sprocket last?
A chain can last anywhere from about 500 miles to 5000 , depending on the quality of the chain, the sprockets, how the bike is ridden, and the maintenance. I clean my chain about twice a year, whether it needs it or not, and I get about 2000 miles out of mine. Standard quality SRAMs.
What causes sprocket failure?
Possible Causes The chain or sprocket is worn, causing chain grouping. When chain pitch is greater than the pitch of the sprocket tooth , some chain rollers fail to come in contact with the bottom of the tooth. As this section of chain comes off the load sprocket, the sudden excess of chain causes a momentary slack.
