140 Roller Chain — Strand-Count Comparison
140 is ANSI B29.1 standard roller chain (ISO 28A), 1.75" pitch (44.45 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 140 share identical pitch, roller, pin, and plate geometry.
| Designation | ANSI 140 / ISO 28A |
| Pitch | 1.75" (44.45 mm) |
| Roller diameter | 1" |
| Width between plates | 1" |
| Pin diameter | 0.5" |
| Plate thickness | 0.219" |
| Plate height | 1.661" |
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 |
|---|---|---|---|---|---|---|
| 140-1 | single-strand | 38,280 | 48,500 | 9,040 | 5.03 | 140-1 → |
| 140-2 | double-strand | 76,560 | 97,000 | 15,370 | 9.97 | 140-2 → |
| 140-3 | triple-strand | 114,840 | 145,500 | 22,600 | 14.92 | 140-3 → |
| 140-4 | 4-strand | 153,120 | 194,000 | 29,830 | 19.16 | 140-4 → |
| 140-5 | 5-strand | 191,400 | 242,500 | 35,250 | 24.84 | 140-5 → |
| 140-6 | 6-strand | 229,680 | 291,000 | 41,580 | 29.77 | 140-6 → |
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.