Which type of chain is composed of heavier links with multiple side plates and strands to increase its strength rating?

Which type of chain is composed of heavier links with multiple side plates and strands to increase its strength rating?

• A. Roller Chain
• B. Leaf Chain
• C. Silent Chain
• D. Block Chain

Answer: (B)

When a chain needs to carry very heavy loads, the design that uses flat, plate-like links stacked in multiple strands provides the greatest strength. This is leaf chain. The leaves are wide plates that slide together and are arranged in several strands, which distributes the load across many plates and pathways. That structure significantly increases the chain’s strength rating, making it ideal for lifting applications such as forklifts and hoists. Roller chain, by contrast, is built with pins, bushings, and rollers to transmit power efficiently and smoothly, not primarily to handle the highest lifting loads. Silent chain features a toothed, low-noise profile for quiet operation and does not employ the heavy, multi-plate leaf construction. Block chain isn’t defined by the same multi-plate, multi-strand arrangement used to boost strength for lifting. So leaf chain best fits the description.

When a chain needs to carry very heavy loads, the design that uses flat, plate-like links stacked in multiple strands provides the greatest strength. This is leaf chain. The leaves are wide plates that slide together and are arranged in several strands, which distributes the load across many plates and pathways. That structure significantly increases the chain’s strength rating, making it ideal for lifting applications such as forklifts and hoists.

Roller chain, by contrast, is built with pins, bushings, and rollers to transmit power efficiently and smoothly, not primarily to handle the highest lifting loads. Silent chain features a toothed, low-noise profile for quiet operation and does not employ the heavy, multi-plate leaf construction. Block chain isn’t defined by the same multi-plate, multi-strand arrangement used to boost strength for lifting. So leaf chain best fits the description.