JIS B 1810:2018 gives guidelines for the selection of chain drives, composed of a roller chain/bush (hereafter referred to as a chain), and sprockets conforming with JIS B 1801.
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JIS B 9971:2019
$47.00 $94.00
JIS A 1108:2018
$37.00 $75.00
JIS B 2404:2018
$53.00 $106.00
NACE 21428
$89.00 $179.00