Martin chain #35 · E-19
35BS21HT
Exact stock sprocket record from Martin's official Roller Chain Sprockets catalog.
Published catalog evidence
Exact source record
- Catalog number
- 35BS21HT
- Chain designation
- 35
- Chain pitch
- 0.375"
- Number of teeth
- 21
- Material context
- all steel
- Sprocket style
- single hardened-teeth bored-to-size
- Published row text
- 21 35BS21HT 2 .710 .875 0 .75 .625 — .75 — — 1
Verification boundary
What still needs to match
Chain and strand countConfirm ANSI/ISO chain standard, pitch, roller width, and simplex/duplex/triplex arrangement.
Bore and hub systemVerify stock/finished bore, QD or taper-bushing size, hub style, keyway, setscrews, and shaft fit.
Material and teethConfirm steel/stainless material, hardened-tooth suffixes, corrosion requirements, and tooth count.
DutyCheck speed, horsepower, alignment, lubrication, shock loading, and current manufacturer limits.
Related catalog parts
Same chain family, nearby tooth count
Chain #3535BS2121 teeth · single Type BS bored-to-sizeChain #3535B21SS21 teeth · single stainless stock sprocketsChain #3535B2121 teeth · single Type B / Type A stock sprocketsChain #3535BTB2121 teeth · single taper-bushedChain #3535JA2121 teeth · single QDChain #3535H2121 teeth · single MST sprocketsChain #3535BS2020 teeth · single Type BS bored-to-sizeChain #3535BS2222 teeth · single Type BS bored-to-size