Roller Chain Coating Technology Explained

The sample provides three finished chain families and their dimensions. Dacromet and modern zinc-flake systems are non-electrolytic coating technologies, while zinc and nickel plating are commonly applied by electrochemical processes. The actual process route must be confirmed with the supplier.

NOF describes modern GEOMET zinc-flake systems as zinc and aluminum flakes in a binder and notes that non-electrolytic application avoids hydrogen embrittlement. This is general coating context, not a certificate for every EP chain.

Field	Meaning	How it is used
P	Pitch	Primary chain and sprocket size reference
d1	Roller diameter; external bush diameter on marked bush chains	Confirms roller-seat and sprocket compatibility
b1	Width between inner plates	Checks sprocket tooth and side-clearance fit
d2	Pin diameter	Part of the chain construction reference
L / Lc	Maximum pin lengths	Checks overall width and connecting-link clearance
h2	Inner plate depth	Used for envelope and guarding checks
t/T	Plate thickness	Construction and side-clearance reference
Q	Breaking load	Not a working-load rating; selection still requires duty data
q	Weight per meter	Useful for handling and drive-system calculations

Customer Reviews & Case Studies

United States – Outdoor equipment

Use: coating technology review review for rain, dust and seasonal storage.

Feedback: The project team used the dimensional table to confirm pitch, roller diameter, inner width and matched sprocket geometry.

Application fit: ★★★★★

Germany – Industrial machinery

Use: Coated-chain replacement with documented guarding and maintenance access.

Feedback: Clear coating identification and exact chain dimensions helped the integrator prepare the technical file.

Application fit: ★★★★★

Japan – Precision automation

Use: Compact drive exposed to rain or periodic washdown.

Feedback: The buyer emphasized dimensional traceability, link configuration and sprocket condition.

Application fit: ★★★★☆