Roller Chain Length Formula

This page calculates the length of the chain required to wrap both sprockets and the number of links of chain to do so.

Roller chain length formula.

We also use pbi for sprockets for our harley chain drive conversions. Chain pitch inches drive sprocket teeth. We use sprocket specialists for many of our sprockets and since we raced bikes at the bol d or in 1977. The pitch diameter for each roller chain drive sprocket or idler is obtained from equations below.

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic industrial and agricultural machinery including conveyors wire and tube drawing machines printing presses cars motorcycles and bicycles it consists of a series of short cylindrical rollers held together by side links. Confusion doesn t rule the day when roller chain sizes are detailed in every dimension possible at usa roller chain. If chain length is fractional round off to the nearest whole number of pitches. The pitch of the chain is also known.

Center distance inches links. Follow our easy to read roller chain size chart for your industrial applications. The chain drive trajectory is based on individual sprocket position and desired direction of motion. When changing sprockets you can adjust chain links to maintain nearest to current sprocket centers eg.

Chain length in pitches cl 2c a 2 t c note. The sliding sprocket position is adjusted accordingly. Use at your own risk. For our flt h chain drive conversions we supply a 120 link o ring ek chain.

When the distance between the driving and driven sprockets can be varied to suit the length of the chain this center distance for a tight chain may be determined by the following calculator and formula. To keep motorcycle rear wheel within adjustment range. We also have a sprocket diameter calculator that determines a sprockets diameter based on the pitch of the chain and the number of teeth. All care has been taken in creating this tool but no responsibility is accepted for any errors.

The number of teeth on each sprocket is known. Driven sprocket teeth. If your centre distance is too short a minimum will be calculated. An offset section also called a hunting link section must be used when a chain contains an odd number of links.

The chain length is given by number of chain links and the chain pitch. Roller chain length calculator the calculator will determine your required roller chain length and ideal centre distance given the sprocket teeth chain pitch and centre distance. The lower the chain revolutions the more frequently each chain link engages the same sprocket tooth so greater and more uneven the wear. Calculating roller chain length given two sprockets a known distance apart.

Sprocket center distance for a roller chain of known length equation and calculator. Length inches reduction ratio.