Description
16B Metric Roller Chain Sprocket — Extra-Heavy-Duty Industrial Power Transmission
The 16B sprocket at 25.4mm (1 inch) pitch represents the upper range of commonly specified ISO metric chain drive sprockets. Designed for applications where maximum torque transfer is required through a single chain pitch size. Suitable for large mining conveyor head drives, cement kiln chain mechanisms, heavy-duty crane traversing drives, and bulk materials handling systems. We supply 16B in simplex (16B-1), duplex (16B-2), and triplex (16B-3) with tooth counts from 9 to 114.
Specifiche tecniche
| Parametro | 16B-1 | 16B-2 | 16B-3 |
|---|---|---|---|
| Pece | 25.4 mm (1″) | 25.4 mm | 25.4 mm |
| Roller Diameter | 15.88 mm | 15.88 mm | 15.88 mm |
| Internal Width | 17.02 mm | 17.02 mm | 17.02 mm |
| Tooth Count Range | 9 – 114T | 9 – 114T | 9 – 114T |
| Material Options | C45 / 4140 / SS316 | C45 / 4140 | C45 / 4140 |
| Standard | ISO/R 606, DIN 8187 | ISO/R 606 | ISO/R 606 |
16B Pitch Diameter Quick Reference
Use this table to verify your 16B sprocket will fit within the available machine envelope before ordering:
| Teeth (Z) | Pitch Dia. (mm) | Outside Dia. (mm) | Typical Max Bore (mm) |
|---|---|---|---|
| 15 | 122.2 | 135.4 | 30 |
| 17 | 138.1 | 151.3 | 35 |
| 21 | 170.3 | 183.7 | 45 |
| 25 | 202.4 | 216.0 | 55 |
| 38 | 307.4 | 321.4 | 70 |
| 57 | 461.4 | 475.8 | 90 |
Key Advantages
| Feature | 16B Benefit | Why It Matters |
|---|---|---|
| 25.4mm Pitch | Maximum torque in ISO metric range | Eliminates need for multi-strand in many heavy-duty applications |
| HRC 40-50 Teeth | 2-3x wear life vs unhardened | Reduces replacement frequency in abrasive mining and cement environments |
| 4140 Alloy Option | 655-900 MPa tensile strength | Withstands shock loads from irregular feed in crusher and elevator drives |
| Split Hub Available | Install without breaking chain | Reduces shutdown time at mine sites where downtime exceeds AUD 10,000/hr |
| Full Traceability | EN 10204 Type 3.1 certs | Satisfies AS/NZS ISO 9001 audit and RPEQ documentation requirements |
| Taper-Lock / QD | Rapid field installation | No need to re-machine bores during sprocket replacement on remote sites |
Compatibility
| Component | Spec |
|---|---|
| Catena | 16B-1, 16B-2, 16B-3 (25.4mm pitch) |
| Bore Range | 10mm – 90mm (by tooth count) |
| Not Compatible | ANSI #80 (different roller diameter despite identical pitch) |
Selection Guide
By Application: 16B simplex for heavy-duty single-drive applications up to the rated HP. Duplex for drives exceeding simplex rating. Triplex for extreme torque requirements or where redundancy is needed for critical process equipment.
By Material: C45 for general heavy-duty. 4140 for mining shock loads and high-cycle fatigue. SS316 for chemical exposure or marine environments. Cast iron for low-speed, high-torque applications where vibration damping is beneficial.
By Hub Type: Plain bore with keyway for permanent installations. Taper-lock for maintenance-friendly designs. QD bushed for the largest bore capacities and rapid replacement.
Material and Manufacturing
Standard: C45 carbon steel. Heavy-Duty: 4140 alloy steel for mining. Corrosion-Resistant: SS304/SS316 for food, chemical, marine.
Heat Treatment: Induction hardened teeth HRC 40-50. Controlled depth maintains core ductility. Case-hardened 8620 available for extreme wear applications.
Surface: Black oxide, zinc, zinc-nickel, hot-dip galvanise, hard chrome, electro-polish. Multiple options for every Australian operating environment.
Applications
Heavy Mining & Cement
Primary conveyor drives, kiln chain mechanisms, clinker cooler drives, and bulk material elevator systems where maximum single-chain torque is required.
Crane & Heavy Machinery
Traversing drives for overhead cranes, port equipment chain drives, and heavy press feed mechanisms. The 25.4mm pitch provides the robust tooth engagement needed for high-inertia loads.
Customer Reviews
“16B triplex sprockets on our primary conveyor at the mine are running under extreme conditions — 45+ degree heat, iron oxide dust. After 12 months the teeth still look good. The 4140 steel specification was the right call.”
★★★★★ — Reliability Engineer, Newman, Australia
“We ordered 16B-2 with QD bushings for our cement plant clinker cooler. Installation took less than an hour per sprocket. Running without issues for 8 months.”
★★★★★ — Maintenance Manager, Karachi, Pakistan
“Solid heavy-duty sprockets. The split hub 16B saved us from a full chain pull during our annual shutdown. Documentation was complete and professional.”
★★★★☆ — Operations Manager, Gladstone, Australia
“We needed a 16B sprocket with a non-standard bore for our overhead crane. Ever-Power machined it to spec within our required timeframe. Fits perfectly.”
★★★★★ — Chief Engineer, Osaka, Japan
“Good quality 16B sprockets at a fair price. Consistent quality across multiple orders. Material test certificates always provided promptly.”
★★★★☆ — Procurement Manager, Santiago, Chile
FAQ
Is 16B the same as ANSI #80?
When should I choose 16B over 12B duplex?
What is the largest 16B sprocket you can supply?
Can I get segmental rim 16B sprockets for elevators?
MOQ for 4140 alloy steel 16B?
Related Products
16B Roller Chains
Coupling Sprockets
Taper-Lock Bushings
Installation and Maintenance
Installare: Match 16B chain pitch (25.4mm). Mount, key, torque. Align within 0.5mm/300mm. Chain sag 2-3% on slack side. Use ISO VG 68-100 oil for initial lubrication.
Lubricate: Oil bath or circulating oil recommended for continuous-duty heavy drives. Manual drip for intermittent operation. Never use grease.
Replace: When tooth hook wear exceeds 25% of flank thickness. Check for shaft fit looseness if using plain bore. Target: 2-3 chain lives per sprocket under proper maintenance.
Certifications
✅ ISO 9001:2015 ✅ ISO/R 606 ✅ DIN 8187 ✅ EN 10204 Type 3.1 ✅ AS/NZS compatible
Why Ever-Power Australia
We are a full-range power transmission manufacturer with 15+ years serving Australian mining, agriculture, and heavy industry. We stock 3,200+ sprocket SKUs including 16B in C45 and 4140 alloy steel. ISO 9001 certified facility with CNC hobbing, induction hardening, and full dimensional inspection. We provide engineering support, material certification, CAD files, and OEM custom manufacturing capability. Contact our team for technical selection assistance.
Request 16B Sprocket Quotation
Provide tooth count, bore, material, and quantity for engineering review and pricing.
