Chain drives - level 2 millwright Updated
Exam
_______ links have two bushings that are press fit into two roller link plates and links
have two rollers that spin freely on the bushings - Answer-Roller
What is the pitch in roller chain? - Answer-Distance between centres of adjacent joint
members
What is the chain width in roller chain? - Answer-The minimum distance between link
plates and it's 5/8 of the pitch
What is roller diameter in roller chain? - Answer-Outside diameter of roller and 5/8 of the
pitch (0.625 x pitch)
A connecting link has what parts? - Answer-2 pins press fitted and riveted permanently
to a link plate
A link plate that can be press or slip fit on the pins
Securing device (spring clip, cotter pin, spring pin, etc)
Another name for roller link plates - Answer-Side plates
________ links are oversized and have lubricated bushings - Answer-Rollerless
______ links have two link plates which hold the pins and roller links that pivot on the
pins - Answer-Pin
______ chain is an assembly of alternating roller links and pin links - Answer-Standard
roller
What is the purpose of a connecting link? - Answer-Joins a roller chain, making it
endless
What is a slip fit connector? - Answer-Their side plates are secured by pins or clips.
Used for efficient chain removal
What are press fit connectors? - Answer-Riveted for permanent connections and heavy
applications.
_________ of ________ clips face direction of travel - Answer-Head end and spring
, _______ links are used when it's not possible to have a standard connecting link to
have an even number of pitches - Answer-Offset (aka half link)
_______ links lengthen chains one pitch at a time - Answer-One-pitch offset
_______ links are designed for heavy applications. The pin is riveted making a
permanent connection. - Answer-Two-pitch offset
How do you find the pin diameter roller chain? - Answer-Pin is 5/16 of the pitch. (0.3125
x pitch)
Name four types of chain links - Answer-Roller
Pin
Connecting
Offset
All Roller chain dimensions are related to the pitch in what way? - Answer-They're all
fractional multiples of the pitch
How thick is the link plate in roller chain? - Answer-1/8 of the pitch.
ANSI roller chain code numbers have two parts? What are they - Answer-Left side =
pitch
Right side = chain type
In roller chain code numbers, the right side specifies chain type. What are those
numbers and what chain type do they indicate? - Answer-0 - regular proportion. (Aka
usual)
1 - lightweight chain
5 - rollerless bushing chain
In roller chain code numbers, the left side indicates pitch in 1/8" increments. What would
an 80 chain's pitch be. - Answer-1 inch.
What is the pitch of a 41 roller chain? - Answer-1/2"
What is the pitch of 100 chain - Answer-10/8 which = 1 1/4
_________ chains transfer maximum power with the smallest pitch size which gives
smooth operation - Answer-Multiple strand
What does the letter H signify in roller chain code? - Answer-Heavy series
Exam
_______ links have two bushings that are press fit into two roller link plates and links
have two rollers that spin freely on the bushings - Answer-Roller
What is the pitch in roller chain? - Answer-Distance between centres of adjacent joint
members
What is the chain width in roller chain? - Answer-The minimum distance between link
plates and it's 5/8 of the pitch
What is roller diameter in roller chain? - Answer-Outside diameter of roller and 5/8 of the
pitch (0.625 x pitch)
A connecting link has what parts? - Answer-2 pins press fitted and riveted permanently
to a link plate
A link plate that can be press or slip fit on the pins
Securing device (spring clip, cotter pin, spring pin, etc)
Another name for roller link plates - Answer-Side plates
________ links are oversized and have lubricated bushings - Answer-Rollerless
______ links have two link plates which hold the pins and roller links that pivot on the
pins - Answer-Pin
______ chain is an assembly of alternating roller links and pin links - Answer-Standard
roller
What is the purpose of a connecting link? - Answer-Joins a roller chain, making it
endless
What is a slip fit connector? - Answer-Their side plates are secured by pins or clips.
Used for efficient chain removal
What are press fit connectors? - Answer-Riveted for permanent connections and heavy
applications.
_________ of ________ clips face direction of travel - Answer-Head end and spring
, _______ links are used when it's not possible to have a standard connecting link to
have an even number of pitches - Answer-Offset (aka half link)
_______ links lengthen chains one pitch at a time - Answer-One-pitch offset
_______ links are designed for heavy applications. The pin is riveted making a
permanent connection. - Answer-Two-pitch offset
How do you find the pin diameter roller chain? - Answer-Pin is 5/16 of the pitch. (0.3125
x pitch)
Name four types of chain links - Answer-Roller
Pin
Connecting
Offset
All Roller chain dimensions are related to the pitch in what way? - Answer-They're all
fractional multiples of the pitch
How thick is the link plate in roller chain? - Answer-1/8 of the pitch.
ANSI roller chain code numbers have two parts? What are they - Answer-Left side =
pitch
Right side = chain type
In roller chain code numbers, the right side specifies chain type. What are those
numbers and what chain type do they indicate? - Answer-0 - regular proportion. (Aka
usual)
1 - lightweight chain
5 - rollerless bushing chain
In roller chain code numbers, the left side indicates pitch in 1/8" increments. What would
an 80 chain's pitch be. - Answer-1 inch.
What is the pitch of a 41 roller chain? - Answer-1/2"
What is the pitch of 100 chain - Answer-10/8 which = 1 1/4
_________ chains transfer maximum power with the smallest pitch size which gives
smooth operation - Answer-Multiple strand
What does the letter H signify in roller chain code? - Answer-Heavy series
