Chains Flashcards
Purpose of chains
Transmit power (chains do not stretch, they wear)
Applications for chains
Bikes, bucket elevators, roller coasters, and conveyors
Types of chains
Roller chain, engineered class chain, and polymer chain
Roller chain
Dimensionally standardized, standard pitch lengths (center of pin to center of pin)
Roller chain designation
No. 80 (1” pitch) and No. 40 (1/2” pitch)
Is all chain bi-directional?
No
Types of roller chain
Single strand, double strand, and leaf chain
Apps for roller chain
Lift trucks
Major roller chain players
UST, Diamond, and Morse
Are there domestic manufacturers of roller chain?
No
Engineered class chain apps
Bucket elevators, construction equipment, hot plants, waste and water, dairy conveyors, and drag conveyors
What is contenary sag? Is it bad?
Sag of the chain and it can be good or bad
Things that affect chain life
Product being conveyed, conditions, misalignment, speed, chain pull, and lube
Major engineered class chain players
UST, Webster, Allied Locke, Rexnord, Jeffries, and Imports
Chain advantages
No slippage, longer operating life, hostile environments, and shelf life
Chain disadvantages
Noisy, elongation, sprocket replacement
Types of polymer chain
Mat top and table top
What app is mat top chain used for
Food applications
What app is table top chain used for
Beverage applications
