Technical resources
Straight, practical chain guidance: how to identify, measure, specify and keep drives running. Written by people who handle chain every day.
Start with the problem in front of you
Each guide answers one real question, the kind that usually arrives with a machine standing still.
Roller chain size chart
Every BS and ANSI size in mm and inches: pitch, roller, width, plate, pin and breaking loads on one printable page.
How to identify an unknown roller chain
Three measurements, the ANSI eighth-inch rule, and the roller trick that separates BS from ANSI at the same pitch.
How to measure roller chain for wear
Check elongation properly, know the 1.5–2% thresholds, and stop a worn chain taking your sprockets with it.
Standard vs heavy-series chain
Same pitch, same breaking load. So what does H chain buy you, and when is the swap right?
BS to ANSI cross-reference chart
Pitch equivalents, roller diameters, and where the two standards are not interchangeable.
Chain fault finding
Cracked plates, stiff links, chain climb: what each failure is telling you, and how to fix the cause.
Chain lubrication guide
Where to put the oil, how much, and which SAE grade, plus when oil is the wrong answer entirely.
Links, lengths & odd pitch counts
Spring clip vs cotter, even vs odd counts, and why single-pitch offset links break first.
Drive design: tension, alignment & sprockets
Centre distance, tooth counts, slack and alignment. Getting the drive right before the chain goes on.
Choosing the correct conveyor chain
Five questions in order: what carries the load, how much, in what environment, on what path, with which attachments.
Case-hardened vs through-hardened pins
Two hardening routes, two very different failure behaviours, and when to pay for the upgrade.
Chain wear gauges: how they work
Go/no-go plates, sliding gauges and the rule method. What the 1.5% span means and when a gauge is the wrong tool.
Download the full product catalogue
Every range in one document: roller, conveyor, sawmill and specialist chain with dimensions, attachments and sprocket data. Save it, print it, or send it to your designer.
One-page PDF datasheets, per range
The same figures as each range page — pitch, roller, plate, pin and breaking load — laid out to print. All of them are on the downloads page with the full catalogue.
- BS roller chain (05B–24B) datasheet (PDF)
- ANSI roller chain (25–160) datasheet (PDF)
- Double-pitch conveyor chain (C2040–C2122H) datasheet (PDF)
- Hollow-pin chain (HP & double-pitch HP) datasheet (PDF)
- Self-lube chain (NSL) datasheet (PDF)
- Side-bow chain datasheet (PDF)
- Accumulation / Double-Plus chain datasheet (PDF)
- Non-marking & plastic-roller chain datasheet (PDF)
- Welded steel mill chain (WR/WH) datasheet (PDF)
- Sharp top chain datasheet (PDF)
- MEGA Chain II stainless steel datasheet (PDF)
- High-strength HV chain datasheet (PDF)
- Double Flex chain (DF) datasheet (PDF)
- Drop-forged rivetless chain (X-series) datasheet (PDF)
- Attachment dimensions — BS/DIN, ANSI & double-pitch (PDF)
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