Martin chain #25 · E-16
25B18
Exact stock sprocket record from Martin's official Roller Chain Sprockets catalog.
Published catalog evidence
Exact source record
- Catalog number
- 25B18
- Chain designation
- 25
- Chain pitch
- 0.25"
- Number of teeth
- 18
- Material context
- all steel
- Sprocket style
- single stock sprockets
- Published row text
- 18 25B18 1 .568 B .25 .75 1 .125 .5 .16 A 25A18 .25 .04
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 #2525B18SS18 teeth · single stainless stock sprocketsChain #2525B1717 teeth · single stock sprocketsChain #2525B1919 teeth · single stock sprocketsChain #2525B17SS17 teeth · single stainless stock sprocketsChain #2525B19SS19 teeth · single stainless stock sprocketsChain #2525B1616 teeth · single stock sprocketsChain #2525B2020 teeth · single stock sprocketsChain #2525B16SS16 teeth · single stainless stock sprockets