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WorksheetsPMMI REVIEW - Chain Drives
Total questions: 28
Worksheet time: 14mins
Describe the function of the three basic components of a chain drive?
Sprockets, chain, and tensioner/idler
Describe how to calculate sprocket ratio
Driver Sprocket Teeth + Driven Sprocket Teeth
Driver Sprocket Teeth * Driven Sprocket Teeth
Driven Sprocket Teeth / Driver Sprocket Teeth
Driver Sprocket Teeth / Driven Sprocket Teeth
What type of chain drive is made up of alternate roller links?
What are the three basic functions of a chain drive system?
Define Chain Pitch?
What is the pitch of a standard Number 40 chain?
Examine the picture. This type of link is made up of two side plates, two bushings, and two rollers. What is the name of this link?
Roller chain links are used when there is an even number of links. What type of link is used when there is an odd number of links?
Odd link
Offset link
what is the name of roller chain link that is removable?
Describe the function and operation of a master chain link?
Examine the picture. What type of chain is this?
Detachable chain
This type of chain is designed for one-way drives where a steady pull is applied on the load side
Detachable Chain
This type of chain is used as a drive chain for higher speeds (to about 450 FPM or 137 meters/minutes) and heavier loads than detachable chain
Pintle chain
What is the name of the drive chain that consists of a series of toothed link-plates assembled on pin connectors?
Silent chain
Silent chains are commonly used for high speed drive systems over how many FPM?
4500
Define Chain sag in a mechanical drive system?
How is Chain Sag measured in a sprocket driven system?
What is the name of the tool that is used to hold two ends of a chain together while installing a sprocket?
Chain puller tool
For most applications, a chain should be installed with a sag depth of ______ % of the sprocket center distance?
5-8%
2-4%
Roller chain sprockets are hardened. This provides what?
Increased durability and resistance to wear.
How many types of sprocket hubs classes are there?
Define the type A sprocket hub.
Type A sprocket hub is a hub used in aviation
Type A is a hub with no keyway or set screws
Type A is a flat sprocket with no hub on either side of the plate
Type A sprocket has one hub.
Define the Type B sprocket classification
Define the Type C sprocket Classification?
Type C sprocket Classification has a hub on both sides of the plate
Define type D sprocket classification?
Type D sprockets have a split hub for easy replacement.
Type D sprockets have larger hubs for more power.
What are the four most common methods to lubricate chains?
splash lubrication, fast lubrication, power lubrication, spray lubrication
Drip lubrication, Manual lubrication, Oil Bath lubrication, Force Fed lubrication
Robotic lubrication, Auto lubrication, submerge lubrication
No lubrication is needed
A _____ oiler drips oil into the space between the chain's inner and outer plates.
Drip
A tube delivers a constant supply of oil to the chain, is what type of lubrication method?
Manual
Forced-Feed
