Roller Chain Length Formula

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.

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 calculator the calculator will determine your required roller chain length and ideal centre distance given the sprocket teeth chain pitch and centre distance. For our flt h chain drive conversions we supply a 120 link o ring ek chain. Chain pitch inches drive sprocket teeth.

Confusion doesn t rule the day when roller chain sizes are detailed in every dimension possible at usa roller chain. The chain drive trajectory is based on individual sprocket position and desired direction of motion. 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. The lower the chain revolutions the more frequently each chain link engages the same sprocket tooth so greater and more uneven the wear.

Driven sprocket teeth. Use at your own risk. All care has been taken in creating this tool but no responsibility is accepted for any errors. The pitch of the chain is also known.

We also use pbi for sprockets for our harley chain drive conversions. 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. Compare diameter width and thickness as you find drive chain sizes that move your machinery in the right direction.

The algorithm to compute chain length uses sprockets pitch diameters. If chain length is fractional round off to the nearest whole number of pitches. The number of teeth on each sprocket is known. An offset section also called a hunting link section must be used when a chain contains an odd number of links.

The sliding sprocket position is adjusted accordingly. Calculating roller chain length given two sprockets a known distance apart. The chain length is given by number of chain links and the chain pitch. If your centre distance is too short a minimum will be calculated.

An even number of pitches is always preferable to an odd number which requires an offset section. To keep motorcycle rear wheel within adjustment range. Chain length in pitches cl 2c a 2 t c note. Length inches reduction ratio.

Follow our easy to read roller chain size chart for your industrial applications. Sprocket center distance for a roller chain of known length equation and calculator.