240 Roller Chain — Strand-Count Comparison
240 is ANSI B29.1 standard roller chain (ISO 48A), 3" pitch (76.2 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 240 share identical pitch, roller, pin, and plate geometry.
| Designation | ANSI 240 / ISO 48A |
| Pitch | 3" (76.2 mm) |
| Roller diameter | 1.875" |
| Width between plates | 1.875" |
| Pin diameter | 0.937" |
| Plate thickness | 0.375" |
| Plate height | 2.85" |
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 |
|---|---|---|---|---|---|---|
| 240-1 | single-strand | 112,500 | 154,320 | 22,260 | 16.46 | 240-1 → |
| 240-2 | double-strand | 225,000 | 308,640 | 37,850 | 32.32 | 240-2 → |
| 240-3 | triple-strand | 337,500 | 462,970 | 55,660 | 48.11 | 240-3 → |
| 240-4 | 4-strand | 450,000 | 617,290 | 73,480 | 63.9 | 240-4 → |
| 240-5 | 5-strand | 562,500 | 771,610 | 86,840 | 79.7 | 240-5 → |
| 240-6 | 6-strand | 675,000 | 925,940 | 102,420 | 95.49 | 240-6 → |
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.