Description
Double Sprockets for Two Single Chains — Synchronised Dual-Chain Drives
Double sprockets consist of two single-strand sprockets integrated on a common hub, allowing two independent roller chains to be driven from a single shaft. Unlike duplex sprockets (which drive one duplex chain), double sprockets drive two separate simplex chains — each chain can have a different tooth count, pitch, or direction. Used where two conveyors, two mechanisms, or a conveyor-plus-timing drive need synchronised operation from one motor. Available in ISO metric and ANSI standards.
Specifications
| Parameter | Value |
|---|---|
| Configuration | Two simplex sprockets on common hub |
| ISO Sizes | 06B through 24B |
| ANSI Sizes | #40 through #120 |
| Tooth Counts | Same or different on each side |
| Material | 1045 Steel, hardened teeth |
Features
🔗 Two independent chains from one shaft — eliminates need for a second gearbox or motor
🔄 Different tooth counts possible — different speed ratios on each chain from same shaft speed
⚙ Mixed pitches possible — e.g., #40 on one side and #60 on the other (custom manufactured)
🔥 Hardened teeth, CNC precision, 0.025mm TIR bore concentricity
🏭 Single bore and keyway — both sprockets are precisely aligned and concentric
✅ ISO 9001:2015, EN 10204 Type 3.1 material certs
Applications
Parallel conveyor drives from a common motor, dual-side conveyor belt tracking, combined power-and-timing chain systems, agricultural equipment with multiple chain-driven attachments, packaging machines with synchronised indexing and transport chains.
Reviews
“Double sprocket on our dual conveyor drive. Both chains perfectly synchronised from one motor. Simplified our design.” ★★★★★ — Design Eng., Adelaide, Australia
“Different tooth counts on each side gave us the two different speeds we needed from one shaft.” ★★★★★ — Machine Builder, Taipei, Taiwan
“Good quality double sprocket. Both chain engagements run true. No vibration.” ★★★★☆ — Packaging Eng., Brisbane, Australia
“Custom double with #40 and #60 on same hub. Manufactured to spec. Excellent work.” ★★★★★ — OEM Designer, Seoul, South Korea
“Replaced two separate sprockets with one double. Saves space and improves alignment.” ★★★★★ — Maint Eng., Perth, Australia
FAQ
Double sprocket vs duplex sprocket?
Can each side have different teeth?
Stock or custom?
Max bore?
MOQ?
Chains
Bushings
✅ ISO 9001 ✅ ANSI/ISO ✅ Custom combinations available | Ever-Power: full double sprocket range.
