1 Chain Construction RS Roller Chains and RF Conveyor Chains consist of alternate connections of roller links and pin links. The roller link consists of a roller plate to which two bushings with rotating rollers are press-fit. This roller link is alternately connected to the pin link plate in which two pins have been securely press-fit.
Roller Link
Bushing
Roller
Roller Link Plate
Roller Roller Link
Pin
Pin Link Plate Pin
Pin Link Plate
Pin Pins are made to exact specifications for high strength, durability, and wear resistance and are rigidly press-fit to the link plates. Pins resist shearing force through chain tension and rotate in the bushings, providing bearing surfaces when the chain articulates over a sprocket. Pin Link Plate Pin link plates are the component part receiving chain tension. The holes for press-fit pins or bushings are accurately punched to maintain uniform pitch.
Roller Rollers rotate freely over the bushings. When the chain engages with the sprocket, the rollers work as bearings and serve to reduce shock and wear. When the chain is running on rails or wear strips, the rollers reduce running friction on the chain. Bushing Bushings are made to obtain high wear resistance and are press-fit to the roller link plates, providing a bearing surface for pin rotation.
Figure 1-1: RS Roller Chain Construction
Figure 1-2: RF Conveyor Chain Construction
C HAIN C ONSTRUCTION 3
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