Twelve Strand Roller Chain
Twelve-strand roller chain (octuplet) is manufactured for heavy-duty equipment such as drills, oilfield, large drives, and extreme duty conveyors. For your drive application, our chain is made using premium quality metallurgy components and high-performing features. This chain features side-plates that have been heat-treated and shot-peened, along with heat-treated pins and solid roller design. Most sizes also come standard with a non-split solid bushing for an even greater performance factor. We supply these chains in both riveted and cottered construction. We also supply twelve-strand roller chain sprockets and tensioners, contact our customer service team for pricing and availability.Twelve-Strand Roller Chain Sizes

Chain# |
Pitch (P) |
(W) |
(D) |
(d) |
(e) |
(f) |
(g) |
(C) |
(T) |
(H) |
(h) |
Weight (LBS/ FT) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40-12 | 0.500" | 0.313" | 0.312" | 0.156" | 0.327" | 0.374" | 0.398" | 0.567" | 0.059" | 0.472" | 0.409" | 4.71 |
| 50-12 | 0.625" | 0.375" | 0.400" | 0.200 | 0.402" | 0.457" | 0.476" | 0.713" | 0.079" | 0.591" | 0.512" | 8.20 |
| 60-12 | 0.750" | 0.500" | 0.469" | 0.235" | 0.500" | 0.563" | 0.594" | 0.898" | 0.094" | 0.713" | 0.614" | 12.06 |
| 80-12 | 1.000" | 0.625" | 0.625" | 0.313" | 0.646" | -- | 0.748" | 1.154" | 0.126" | 0.945" | 0.819" | 20.31 |
| 100-12 | 1.250" | 0.750" | 0.750" | 0.376" | 0.780" | -- | 0.894" | 1.409" | 0.157" | 1.177" | 1.024" | 29.91 |
| 120-12 | 1.500" | 1.000" | 0.875" | 0.437" | 0.980" | -- | 1.110" | 1.787" | 0.189" | 1.413" | 1.228" | 43.55 |
| 140-12 | 1.750" | 1.000" | 1.000" | 0.500" | 1.055" | -- | 1.248" | 1.925" | 0.220" | 1.650" | 1.429" | 55.62 |
| 160-12 | 2.000" | 1.250" | 1.125" | 0.563" | 1.256" | -- | 1.437" | 2.303" | 0.252" | 1.882" | 1.630" | 76.39 |
| 180-12 | 2.250" | 1.406" | 1.406" | 0.687" | 1.409" | -- | 1.638" | 2.591" | 0.280" | 2.118" | 1.835" | 98.19 |
| 200-12 | 2.500" | 1.500" | 1.562" | 0.781" | 1.535" | -- | 1.811" | 2.819" | 0.315" | 2.362" | 2.047" | 127.68 |
| 240-12 | 3.000" | 1.875" | 1.875" | 0.937" | 1.878" | -- | 2.177" | 3.457" | 0.374" | 2.815" | 2.441" | 180.72 |