Pulley

topic information


general information about Pulley

A pulley, also called a sheave or a drum, is a mechanism composed of a wheel on an axle or shaft that may have a groove between two flanges around its circumference. A rope, cable, belt, or chain usually runs over the wheel and inside the groove, if present. Pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion. It is one of the six simple machines. Two or more pulleys together are called a block and tackle.
Aliases: 0080-148b
F W

related topics


topics related to Pulley

message stream


messages about Pulley

Racor PBH-1R Ceiling-Mounted Bike Lift

Racor PBH-1R Ceiling-Mounted Bike Lift($14.99 at Amazon.com)
11 days ago from twitterfeed

Overdoor Shoulder Exercise Pulley System for Upper Body Strengthening

Health Update:: Overdoor Shoulder Exercise Pulley System for Upper Body Strengthening
11 days ago from Twitter Tools

Racor PBH-1R Ceiling-Mounted Bike Lift

Racor PBH-1R Ceiling-Mounted Bike Lift($19.99 at Amazon.com): - Bike-lift ceiling mount for ceiling...
10 days ago from twitterfeed

The Spine Back Brace - Thousands of happy customers!

Launched PPC marketing for this morning. Need back support, get one!
9 ½ days ago from Twitter
Racor PBH-1R Ceiling-Mounted Bike Lift: Bike-lift ceiling mount for ceilings up to 12 feet high Pulley system easi...
8 days ago from twitterfeed
Front door intercom broken, which means I keep missing parcels. Very annoying. Any suggestions to prevent this? Bell? Pulley system?
8 days ago from Twitter
Pulley-Cashed In
5 hours ago from UberTwitter
Tripod Header Unit Deer Feeder Hanging Barrel Winch / Pulley System Parts at www.HuntSports.com
4 ½ hours ago from Twitter

message history


messages per hour for Pulley

top articles


articles discussing Pulley


attribution for Pulley

Freebase CC-BY Freebase content licensed under CC-BY
Wikipedia content licensed under GFDL