40
What is the ansi pitch (in) for 40?
For 40, ansi pitch (in) is 0.500; ansi roller diameter (in) is 0.312; ansi width between roller link plates (in) is 0.312; iso 606 a-series number (same chain) is 08A; bs/din b-series chain of the same pitch is 08B, recorded from its source on 2026-09-01; source re-checked 2026-09-16.
P Roll dia. W T H h D 40 0.500 0.312 0.312 0.060 0.472 0.409 0.156
— ustsubaki.com, retrieved 2026-09-01
- ANSI chain number
- 40 our reading
- ANSI pitch (in)
- 0.500 verified
- ANSI roller diameter (in)
- 0.312 verified
- ANSI width between roller link plates (in)
- 0.312 verified
- ISO 606 A-series number (same chain)
- 08A verified
- BS/DIN B-series chain of the same pitch
- 08B our reading
- BS/DIN pitch (in)
- 0.500 verified
- BS/DIN roller diameter (in)
- 0.335 verified
- BS/DIN width between roller link plates (in)
- 0.305 verified
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
Where each value comes from
This source states these in separate places, so each value is shown with the passage that states it.
ISO 606 A-series number (same chain)
1/2 x 5/16 40 08A 12.7 7.85 11.15 7.95 3.96 3.9 12 14,100 17.8 30.1 45.2 14.8 29.9 15.35
BS/DIN B-series chain of the same pitch, BS/DIN pitch (in), BS/DIN roller diameter (in) and BS/DIN width between roller link plates (in)
RS08BRB 08B 0.500 0.335 0.305
— all from ustsubaki.com, retrieved 2026-09-01
Sources
- ustsubaki.comhttps://www.ustsubaki.com/wp-content/uploads/tsubaki-roller-chain-catalog-compressed.pdf
- ametric.comhttps://www.ametric.com/images/document/chains-roller.pdf