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

2. Basic Parts
Link Plate
The plate is the component that bears the tension positioned on the chain. Usually that is a repeated loading, occasionally accompanied by shock. For that reason, the plate should never only have got great static tensile strength, it must also hold up to the dynamic forces of load and shock.

Pin
The pin is at the mercy of shearing and bending forces transmitted by the plate. Simultaneously, it forms a load-bearing part (together with the bush) when the chain flexes during sprocket engagement. Therefore, the pin requirements high tensile and shear strength, level of resistance to bending, and must also have sufficient stamina against shock and use.

Bush
The bush is subject to complex forces from all parts, especially from the repetition of shock loads when the chain engages the sprocket. Consequently, the bush needs extremely high shock resistance. Furthermore, 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 point of contact and balance. It is held between your sprocket tooth and bush, and moves on the tooth encounter while getting a compression load. As a result, it must be resistant to use and still have power against shock, fatigue and compression. (RS25 and RS35 are bush chains , nor have rollers).

Roller Link
Two bushes are press match two roller hyperlink plates and rollers are inserted to permit rotation around the exterior of the bushes during procedure. This is actually the same for single and for multi strand chains.

Pin Hyperlink and Intermediate Plate
The pin link contains two pins that have been press fit into two pin hyperlink plates. In case of multi-strand roller chain up till size 08B, an intermediate plate is usually put into the pin link. In the event of multistrand roller chain above size 08B, two intermediate plates are added to the pin link. The intermediate plates are slide fit for regular roller chain and press match for Extremely roller chain.