Brief introduction of ANSI roller chain

Brief introduction of ANSI roller chain

Summary

In the United States , power transmission chains must meet ANSI B29.1, thus earning the name ANSI chains . In other countries , the chains must meet IS B1801, ISO 606A, or ISQ 1395C.

Brief introduction of ANSI roller chain
Brief introduction of roller chain

Transmission : General usage

Application Example

Power transmission chains are widely used throughout the world in a variety of applications , including drive , tension , shuttle traction , and transmission reduction operations . Because of this widespread usage , certain international standards are set to ensure that pitch , width , and other key characteristics of chains and sprockets are standardized . In the United States , power transmission chains must meet ANSI B29.1, thus earning the name ANSI chains . 

Construction and Features

1.ANSI Roller Chains have the same shape and construction as the chain shown in Basics Section 1.1.1. There are 14 sizes of roller chains regulated by ANSI . For easy reference , these are numbered 25,35,41,40,50,60,80,100,120,140,160,180,200, and 240. Some manufacturers include chain numbers 320 and 400 to the list of standardized chains .

2. Chains with a 5 on the righthand digit of the chain number are bushing chains. Bushing chains do not have rollers .

3. Number 41 chain is a narrow variation of number 40.

4. This chain number indicates the chain pitch. Heres how to decipher the pitch from the chain number. The numbers to the left of the righthand digit refer to the chain pitch in eighths of an inch. To calculate the pitch, multiply the number by 3.175 mm. 


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