Beschreibung
20B Metric Roller Chain Sprocket — Extra-Heavy-Duty Industrial Drives
The 20B at 31.75mm (1-1/4 inch) pitch is designed for the most demanding power transmission applications in mining, cement, steel, and heavy materials handling. Where maximum single-chain load capacity is required at moderate speeds, 20B delivers. Available in simplex (20B-1), duplex (20B-2), and triplex (20B-3) from 9 to 114 teeth.
Spezifikationen
| Parameter | 20B-1 | 20B-2 | 20B-3 |
|---|---|---|---|
| Tonhöhe | 31.75 mm (1-1/4″) | 31.75 mm | 31.75 mm |
| Roller Diameter | 19.56 mm | 19.56 mm | 19.56 mm |
| Internal Width | 19.56 mm | 19.56 mm | 19.56 mm |
| Tooth Count | 9 – 114T | 9 – 114T | 9 – 114T |
| Material | C45 / 4140 / SS316 | C45 / 4140 | C45 / 4140 |
Advantages
1. Maximum ISO metric single-strand capacity — handles extreme torque at low-to-moderate speeds without multi-strand complexity.
2. Induction hardened HRC 40-50 — extends tooth life 2-3x in abrasive environments (iron ore, coal, cement clinker).
3. 4140 alloy steel option — 655-900 MPa tensile for shock loading in crusher and elevator applications.
4. Split hub and segmental rim available — field replacement without chain removal on large conveyors and elevators.
5. CNC precision manufacturing — teeth hobbed to AGMA tolerances, bore to 0.025mm TIR, keyway to DIN 6885.
6. Full traceability — EN 10204 Type 3.1 certificates. ISO 9001:2015 certified facility.
Applications
Mining & Cement: Primary conveyor head drives, kiln chain mechanisms, clinker cooler drives requiring maximum torque at low speed.
Bulk Handling & Steel: Bucket elevators, pan conveyors, and rolling mill auxiliary drives in steel and mineral processing plants.
Reviews
★★★★★
“20B triplex on our primary conveyor is performing under extreme Pilbara heat. 4140 steel was the right choice.”
Reliability Engineer, Port Hedland, Australia
★★★★★
“Heavy-duty 20B for our cement kiln chain drive. Running 10 months without issues. Documentation complete.”
Plant Manager, Istanbul, Turkey
★★★★☆
“Split 20B sprocket saved us from pulling 40 metres of chain during shutdown. Installed in 2 hours.”
Maintenance Supervisor, Mackay, Australia
★★★★★
“QD bushed 20B for our steel mill pan conveyor. Rapid installation, running true at speed.”
Engineering Manager, Pohang, South Korea
★★★★★
“Consistent quality from Ever-Power. 20B sprockets used across our mining fleet conveyors.”
Procurement Officer, Lima, Peru
Häufig gestellte Fragen
20B vs ANSI #100?
Segmental rim available?
Max bore?
Can I get 4140 with material cert?
MOQ for custom bore?
Related Products
20B Chains
Couplings
QD Bushings
Installieren: Match 20B chain. Mount, key, torque. Align within 0.5mm/300mm. Oil bath lubrication recommended for continuous heavy-duty drives.
Certifications: ✅ ISO 9001:2015 ✅ ISO/R 606 ✅ DIN 8187 ✅ EN 10204
Ever-Power: 15+ years, 3,200+ SKUs, ISO 9001, CNC hobbing, induction hardening, OEM capability for Australian industry.
