100-2
double-strand ANSI B29.1 standard roller chain — pitch 1.25" (31.75 mm). ANSI 100 is dimensionally identical to ISO 20A — interchangeable across all major brands at matching designation.
Pricing not yet available.
We're building pricing coverage for chain. In the meantime, this cross-reference shows the equivalent designations and per-brand part numbers so you can source the right chain from any supplier — the ANSI / ISO standard guarantees the dimensional match.
Specifications
| Designation | ANSI 100 / ISO 20A |
| Series | ANSI B29.1 standard roller chain |
| Strand count | 2 (double-strand) |
| Pitch | 1.25" (31.75 mm) |
| Roller diameter | 0.75" |
| Width between plates | 0.75" |
| Pin diameter | 0.375" |
| Plate thickness | 0.156" |
| Plate height | 1.185" |
| Min tensile (ANSI) | 39,060 lb |
| Avg tensile | 52,910 lb |
| Max allowable load | 8,620 lb |
| Mass | 5.27 lb/ft |
| Pin type | riveted |
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Equivalents Across Brands
ANSI B29.1 / ISO 606 standardize all primary dimensions across manufacturers — chains at matching designation are dimensionally interchangeable. Always verify brand-rated working load against your application before substitution.
| Brand | Part Number | Grade name | OEM |
|---|---|---|---|
| Tsubaki | 100-2RB | RS | Yes |
Related Chains
Other strand counts in the same designation, plus cross-series equivalents at matching pitch.