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 R 1630:1997
$21.00 $43.00
JIS A 1526:1997
$42.00 $85.00
JIS T 0111-3:1997
$27.00 $54.00
JIS S 3200-5:1997
$16.00 $32.00