80 Roller Chain — Strand-Count Comparison
80 is ANSI B29.1 standard roller chain (ISO 16A), 1" pitch (25.4 mm). Compare all strand variants below — pitch and outer dimensions are identical across strands; load capacity scales roughly N× with strand count.
Shared Dimensions (all strands)
ANSI B29.1 pins these dimensions to manufacturer-independent values — single- and multi-strand variants of 80 share identical pitch, roller, pin, and plate geometry.
| Designation | ANSI 80 / ISO 16A |
| Pitch | 1" (25.4 mm) |
| Roller diameter | 0.625" |
| Width between plates | 0.625" |
| Pin diameter | 0.312" |
| Plate thickness | 0.125" |
| Plate height | 0.949" |
Get a PDF cross-reference table
Take this comparison with you. We'll email it and download it now.
Per-Strand Load & Mass
Load capacity and mass scale roughly linearly with strand count. The sprocket must match (multi-strand sprockets carry N parallel tooth tracks). A dash (—) means the manufacturer doesn't publish that value for that strand variant.
| Canonical PN | Strands | Min tensile (lb) | Avg tensile (lb) | Allowable load (lb) | Mass (lb/ft) | Detail |
|---|---|---|---|---|---|---|
| 80-1 | single-strand | 12,500 | 17,640 | 3,300 | 1.79 | 80-1 → |
| 80-2 | double-strand | 25,000 | 35,300 | 5,620 | 3.54 | 80-2 → |
| 80-3 | triple-strand | 37,500 | 52,900 | 8,270 | 5.3 | 80-3 → |
| 80-4 | 4-strand | 50,000 | 70,500 | 10,900 | 7.06 | 80-4 → |
| 80-5 | 5-strand | 62,504 | 88,200 | 12,900 | 8.81 | 80-5 → |
| 80-6 | 6-strand | 75,000 | 105,800 | 15,200 | 10.57 | 80-6 → |
Same-Pitch Cross-Series
Other chain families with identical pitch but different plate geometry — NOT directly interchangeable, but commonly mistaken for each other. The sprocket fits the pitch; the chain envelope differs.