20B-3 Roller chain made to ISO R606 is 1 1/4 ” or 31.75mm pitch it is available in single strand 20B-1 duplex 20B-2 and triplex 20B-3. It is possible to have the chain up to 6 strands wide.
| Chain No. DIN | P x W | Pitch P | Width W | Roller Dia R | Sideplates Height h1 | h2 | Sideplates Thickness t1 | t2 | Dia d | Lengths f | g | g1 | Transverse Pitch C | Avg. Ultimate Strength Din (N) | FB (N) | Approx Weight kg/m |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20B-3 | 1 1/4 x 3/4″ | 31.75 | 19.56 | 19.05 | 26.00 | 26.00 | 3.50 | 4.40 | 10.18 | 56.95 | – | 59.95 | 36.45 | 250.000 | 353.160 | 11.45 |
Note – These are basic roller chain dimensions for the ISOI standard if sizes are critical then please ask for more detailed of roller chain size information or drawings.