1. Three Basic Dimensions
Pitch, Roller Diameter and Inner Width are known as the “Three Basic Measurements of Roller Chain.” When these three dimensions are identical, roller chains and sprockets are dimensionally compatible.

2. Basic Parts
Link Plate
The plate is the component that bears the tension positioned on the chain. Generally this is a repeated loading, sometimes accompanied by shock. Consequently, the plate should never only possess great static tensile strength, it must also hold up to the powerful forces of load and shock.

Pin
The pin is subject to shearing and bending forces transmitted by the plate. At the same time, it forms a load-bearing part (together with the bush) when the chain flexes during sprocket engagement. Therefore, the pin needs high tensile and shear power, level of resistance to bending, and must have sufficient stamina against shock and wear.

Bush
The bush is at the mercy of complex forces from all parts, especially from the repetition of shock loads when the chain engages the sprocket. As a result, the bush needs incredibly high shock resistance. In addition, the bush forms a load-bearing part alongside the pin and therefore requires great wear level of resistance.

Roller
The roller is at the mercy of impact load as it mates with the sprocket teeth during engagement of the chain with the sprocket. After engagement, the roller changes its stage of contact and balance. It is held between your sprocket tooth and bush, and moves on the tooth encounter while getting a compression load. Consequently, it should be resistant to use and still have strength against shock, fatigue and compression. (RS25 and RS35 are bush chains , nor have rollers).

Roller Link
Two bushes are press fit into two roller hyperlink plates and rollers are inserted to permit rotation around the outside of the bushes during operation. This is the same for one and for multi strand chains.

Pin Hyperlink and Conveyor Chain intermediate Plate
The pin link contains two pins which have been press match two pin link plates. In the event of multi-strand roller chain up till size 08B, an intermediate plate is certainly put into the pin link. In case of multistrand roller chain above size 08B, two intermediate plates are put into the pin link. The intermediate plates are slide fit for standard roller chain and press fit for Extremely roller chain.