Buy Roller Chain Links Online in Australia
Roller Chain Link Reference — Quick Reference
Roller chain repair + assembly uses three link types: connecting links (join chain lengths), offset / half links (add a single-pitch adjustment), and leaf chain connecting links. Always match the standard (BS / ASA) + pitch + configuration (simplex/duplex/triplex) + material (standard, stainless, nickel-plated).
| Link Type | Function | Standards | Configurations |
|---|---|---|---|
| Spring Clip Connecting Link | Standard join — clip retained, easy field replacement | BS (06B, 08B, 10B, 12B, 16B, 20B, 24B) + ASA (35, 40, 50, 60, 80, 100, 120) | Simplex / Duplex / Triplex |
| H-Type Press-Fit Connecting Link | High-speed drives — press-fit retained, no clip to dislodge | BS + ASA same range | Simplex / Duplex / Triplex |
| Offset Link (Half Link / Crank Link) | Add ONE pitch increment — odd-count chains | BS + ASA | Simplex / Duplex |
| Double Pitch Connecting Link | Conveyor chain, longer-pitch drives | ANSI 2040, 2050, 2060, 2080, C-series | Standard + heavy |
| Stainless Steel (304/316) | Food, chemical, marine, wet | All standards available SS | Per material chain |
| Nickel-Plated | Light corrosion resistance — outdoor + damp | BS + ASA | Per plating |
| Aqua Series (SY Chain) | Wash-down + wet environments — combined corrosion + wear resistance | SY proprietary | Standard pitches |
Critical: Connecting links must match the chain's exact standard (BS ≠ ASA), pitch, plate width AND configuration. A duplex link cannot retrofit to simplex chain. Always replace links at chain manufacturer's recommended interval — connecting links are the chain's weakest point. Brands: Tsubaki, KCM, SY Chain, ECO. Companion: roller chain, leaf chain, sprockets.
Roller Chain Connecting & Offset Links
AIMS Industrial stocks a comprehensive range of roller chain connecting links, offset links (half links) and leaf chain connecting links from Tsubaki, KCM, SY Chain and ECO. Compatible with BS (British Standard) and ASA (American Standard) roller chain in simplex, duplex and triplex configurations.
Connecting Links
Connecting links join lengths of roller chain and are essential for any chain drive requiring assembly or repair. KCM and SY Chain connecting links are available in BS and ASA standards across common pitch sizes, in standard steel, stainless steel and nickel-plated finishes. Stainless steel links suit food processing, chemical and marine environments where corrosion resistance is required. H-type press-fit connecting links are available for high-speed applications where clip-type links may be unsuitable.
Offset Links (Half Links / Crank Links)
Offset links allow chain lengths to be adjusted by a single pitch increment where a full-length connecting link would create an odd number of pitches. Available in BS and ASA standards, simplex and duplex, in standard steel, stainless steel and nickel-plated finishes.
Double Pitch & Aqua Series
Double pitch connecting and offset links in stainless steel suit conveyor chain and longer-pitch drive applications. SY Chain Aqua Series connecting links are designed for wet and wash-down environments, combining corrosion resistance with food-grade compliance for food processing and beverage applications.
Leaf Chain Links
KCM BL series and AL series leaf chain connecting links are used in forklift masts, hoist chains and other lifting applications where leaf chain is specified. Select the correct BL or AL designation to match your chain specification.
Duplex & Triplex Links
Duplex and triplex connecting links and offset links in both BS and ASA standards are stocked across multiple pitch sizes for double and triple-width chain drives carrying higher loads. Match the link to your chain's standard, pitch and width to ensure correct assembly.
Special & Attachment Links
For applications requiring chain with attachments — conveyor flights, brackets, extended pins and other specials — contact our team. We can assist with sourcing and specifying attachment links to suit custom conveyor and handling chain applications.
People Also Ask — Roller Chain Links
Q: What types of roller chain connecting links are available?
The main types are spring clip connecting links (the standard field-replaceable joining link with a snap-fit retaining clip), H-type press-fit connecting links for high-speed applications where a clip could dislodge, offset links (half links) for adding a single pitch to an odd-count chain, and double-pitch connecting links for conveyor chains running at lower speeds.
Q: When should an H-type press-fit connecting link be used over a spring clip link?
H-type press-fit connecting links are preferred for high-speed drives where centrifugal force or vibration could cause a spring clip to disengage. The press-retained outer plate provides a more secure connection under dynamic loads. Spring clip links remain suitable for most general industrial drives at normal speeds and are easier to install and replace in the field.
Q: Are BSP and ASA roller chain links interchangeable?
No. BSP (British Standard) and ASA (American Standard) roller chains use different plate widths and pin lengths at the same pitch. A BSP connecting link will not correctly fit an ASA chain and vice versa, even when the pitch matches. Always confirm the chain standard (BS or ASA), pitch, and configuration (simplex, duplex, or triplex) before ordering replacement links.
Q: What is an offset link and when is it used?
An offset link (also called a half link or crank link) adds exactly one pitch to a chain's circumference. Offset links are used when the chain count required for a drive is an odd number of pitches — a full connecting link requires an even count. Because offset links introduce a slightly different geometry at the joint, they represent the chain's weakest point and should be minimised in any drive.
Q: When should stainless steel roller chain connecting links be specified?
Stainless steel connecting links (304 or 316 grade) are specified for food processing, chemical, marine, and wet industrial environments where standard carbon steel links would corrode. 316 stainless provides superior corrosion resistance in saltwater and chemical environments. Stainless links must match the chain's standard and pitch — they are not stronger than standard steel links, only more corrosion resistant.