AST: Spring Tightener
・ Spring-loaded automatic tensioner for sprockets and pulleys
・ Easy operation with the internal spring
・ Space-saving with smaller body
・ For horizontal and vertical operations
Use with Imaos’ sprockets / pulleys and PID Idler Pins.

Material:
Base: (AST65) SPCC Steel, (AST100) SPHC Steel
Idler-Pin Holder: SS400 Steel, Black oxide finish
Guide Shaft: S45C Steel, Chrome plated
Spring Holding Pin: S45C Steel, Black oxide finish
Spring: SWOSC-V Steel

Datasheet: https://www.imao.co.jp/files/on-cat/pdf/en/ast-e.pdf

Parameter Name	Parameter Value
Applications	chain and belt
Type	spring-loaded automatic