A triplex (3-strand) roller chain consists of three parallel rows of rollers and link plates running side-by-side. Compared to simplex (single) and duplex (double) chains, triplex chains can transmit much higher power while maintaining the same pitch size.

Key Features:
• Triple-strand construction
Three rows share the load, significantly increasing strength and durability
• High tensile strength
Suitable for heavy loads and high-power drives
• Improved stability
Reduced vibration and smoother engagement with sprockets
• Compact high-capacity design
More power transmission without increasing chain pitch
• Heat-treated components
Pins, rollers, and plates are hardened for wear resistance

Typical Applications:
Kana triplex chains are used in:
• Industrial machinery and production lines
• Conveyor and material handling systems
• Automotive and assembly plants
• Agricultural and heavy equipment

DIN / ISO Compatibility:
Kana triplex chains conform to standards such as:
• ISO 606
• DIN 8187
- These ensure interchangeability in dimensions (pitch, width, roller size) with other compliant chains and sprockets.

Difference Between “3R” and “3C”:

For Kana triplex chains (e.g., 35-3R vs 35-3C), the suffix indicates the link construction type, not size:
3R (Riveted Type)

• Pins are permanently riveted (peened ends)
• Non-detachable construction
• Higher resistance to:
o Shock loads
o Fatigue
o Chain separation

Best for:
• Continuous operation
• Heavy-duty and high-load systems
• Situations where maximum reliability is required

3C (Cottered Type)
• Pins are secured with cotter (split) pins
• Detachable and easy to assemble/disassemble
• Slightly lower structural rigidity than riveted type

Best for:
• Applications needing frequent maintenance or length adjustment
• Field-repair environments