Explore our elite factory-produced heavy machinery components and reinforced conveyor systems engineered for extreme environments.
22 Years of Production Mastery & Technical Innovation
Established in 2004 and spanning over 30 acres in the Boye County Rubber Industrial Park, Baoding City, Hebei Province, Hebei Boao Rubber Technology Co., Ltd. (brand name "Jinao") has evolved into a premier manufacturing powerhouse. We specialize in the research, design, production, and worldwide distribution of high-durability conveyor systems, including critical transmission parts such as Brewer Idler Sprockets, idler rollers, brackets, and robust rubber belting.
Our facilities are equipped with fully integrated rolling, forming, vulcanization, and advanced metallurgical testing labs. This guarantees raw-material-to-finished-product tracking that achieves global ISO quality management system standards.
A technical overview of tooth geometries, metallurgical hardening, and mechanical integrations required to maintain belt alignment and drive efficiency.
In heavy-duty conveying systems, keeping proper chain tension and belt tracking is essential. Brewer Idler Sprockets are specifically designed to absorb dynamic loads, tension slack chains, and route conveyor drives around obstacles without causing excessive wear on either the belt or the chain links.
Unlike regular idlers, high-grade Brewer sprockets feature heavy-duty integrated ball bearings that allow independent rotation on fixed shafts. This design reduces frictional energy loss, prevents drive slips, and extends the operational life of the entire conveyor drive system.
By combining Hebei Boao's 22 years of expertise in conveyor backing fabrics with our precision drive assemblies, we create sprockets that prevent mechanical fatigue in mining, agricultural elevators, and dry bulk shipping terminals.
Every Brewer Idler Sprocket manufactured at Hebei Boao undergoes strict testing to verify mechanical reliability. Our on-site labs examine raw metal blocks before machining. We use CNC lathe machinery and dedicated hobbing systems to ensure correct tooth geometry, preventing chain hopping and vibration.
| Sprocket Series / Pitch | Material Configuration | Hardening Depth (mm) | Sealing Type | Target Applications |
|---|---|---|---|---|
| ANSI #40 - #80 (Standard Duty) | Medium Carbon Steel (C45) | 1.5 - 2.0 mm | Double Lip NBR Seal (2RS) | Packaging lines, Bottling conveyors, Grain elevators |
| ANSI #100 - #160 (Heavy Duty) | Alloy Steel (40Cr / 42CrMo) | 2.5 - 3.5 mm | High-Temp Fluororubber (FKM) | Mining conveyors, Coal yards, Steel slag processing |
| DIN Double Pitch (Custom Pitch) | Stainless Steel (SUS304 / 316) | Work Hardened / Nitrided | Labyrinth Metal Shield (ZZ) | Chemical processing plants, High-moisture environments |
Industrial purchasing agents often make the mistake of selecting idler sprockets based only on pitch size. Experienced engineers know that factors like chain wrap angle, radial load capacity, and bearing protection are equally critical. A chain drive with less than a 120-degree wrap angle on the idler will experience premature tooth wear.
Additionally, using cheap bearing assemblies in dusty coal processing facilities or highly humid chemical plants can lead to bearing failures within months. At Hebei Boao, we prevent this by utilizing custom labyrinth seals and specialized synthetic lubricants designed to handle temperatures from -40°C to 180°C.
Why international heavy industries choose Boao Rubber Technology for their sprockets, idlers, and conveyor assemblies.
We source structural steel and natural rubber polymers directly from nearby raw material producers, lowering transportation costs and protecting our clients from supply chain disruptions.
Our independent laboratories carry out real-time testing of material hardness, chemical composition, and bearing load capacity. No product leaves our facility without a verified QC pass.
All designs comply with ANSI, DIN, and ISO requirements. We provide complete documentation and certificate pathways for smooth customs clearance and regulatory compliance.
Our physical testing lab is equipped with advanced testing machines, dynamic balancing rigs, and carbon-sulfur analysis instruments. These tools allow us to verify that each idler sprocket meets the required tensile strength and wear resistances.
By controlling the entire process from steel heat treatment to final assembly packing, we achieve consistent dimensional tolerances (down to ±0.02mm). This precision ensures quiet operation and reliable service life in high-speed applications.
Our heavy-duty conveyor belts, idlers, and transmission sprockets are used in demanding industries across China and around the world.
Ensuring technical compatibility, quality assurance compliance, and smooth customs processes for international buyers.
For global heavy industry operators, purchasing parts from China requires strict adherence to international standards. At Boao, our manufacturing workflows are aligned with:
We provide all necessary metallurgical testing certificates, bearing load ratings, and hardness inspection reports with every delivery.
Sprockets and heavy conveyor components require proper packaging to prevent damage during sea transport. We use moisture-proof, rust-preventing packing wraps and export-grade wooden cases to ensure all components arrive in perfect condition.
Whether shipping to the Port of Rotterdam, Hamburg, Los Angeles, or Singapore, we work with experienced logistics partners to handle export customs processes efficiently.
Skip the hassle of sourcing from multiple suppliers – our factory provides comprehensive engineering solutions in one place. We offer:
Supply of conveyor belts, idler sprockets, and rubber materials. We help maintain safety stocks to meet production needs, manage daily inventory storage, and perform regular conveyor inspection and maintenance planning.
We work to improve operational efficiency, minimize belt wear, reduce energy losses, and extend the overall lifespan of your material handling systems.
Read detailed technical answers to common questions about selecting, installing, and maintaining conveyor components.
Explore our full range of durable industrial belts, rollers, and mechanical accessories.
Boao Rubber
