In a weston differential pulley block, the number of recesses in the smaller wheel is 9/10 of that of the larger wheel. If the efficiency of the machine is 50%, find the load lifted by an effort of 300N.

Belt, Rope and Chain Drives topics include: Belt, rope and chain drives, belt types and pulleys.  Belt, rope, and chain drives are all mechanical power transmission systems that use pulleys to transmit power from one shaft to another.  The amount of power transmitted depends on the following factors: The velocity of the belt The coefficient of friction The angle of contact  Here's some more information about these types of drives: Belt drives: Use pulleys and a flexible belt to transmit power. Belts are made from leather, cotton, rubber, and synthetic materials. Belt drives are... Show more

Belt, Rope and Chain Drives topics include: Belt, rope and chain drives, belt types and pulleys. 

Belt, rope, and chain drives are all mechanical power transmission systems that use pulleys to transmit power from one shaft to another. 
The amount of power transmitted depends on the following factors:
The velocity of the belt
The coefficient of friction
The angle of contact 

Here's some more information about these types of drives:
Belt drives: Use pulleys and a flexible belt to transmit power. Belts are made from leather, cotton, rubber, and synthetic materials. Belt drives are preferred for medium to large center distances. They have a lower noise level and require minimum maintenance.
Rope drives: Use a rope to transmit power from one system to another. Rope drives are a form of belt drive.
Chain drives: Use a chain to transmit power. Chain drives are often used in equipment like industrial machinery, heavy machinery, and motorbikes where high power transmission is necessary. Chain drives have a higher noise level and require regular maintenance. 

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