Empowering heavy industries with advanced engineering solutions under the trusted brand "Jinao".
Located inside the high-tech industrial zone ofBoye County Rubber Industrial Park, Baoding, Hebei Province, Hebei Boao Rubber Technology Co., Ltd. (founded in 2004) has established itself as an authoritative leader in bulk material handling and heavy-duty drivetrain components. Spanning over 30 acres of modern fabrication facilities, Boao specializes in the systematic R&D, design, manufacturing, and distribution of advanced conveyor systems, heavy-duty belts, and transmission components like the high-precision China 80 Chain Idler Sprocket.
Utilizing state-of-the-art vulcanization, induction hardening, CNC profile machining, and comprehensive physical/chemical laboratory testing, Boao ensures that every component carrying the "Jinao" trademark delivers peak performance under harsh operation environments.
Our specialized plant layout features high-precision rollers, computerized vulcanization presses, and chain component milling infrastructure to ensure precise mechanical tolerances.
In heavy machinery and robust industrial conveyor systems, the transmission of mechanical force relies on high-durability roller chains. The ANSI 80 Chain Idler Sprocket (with a 1-inch pitch) is key to managing chain tension, avoiding dynamic chain slap, and guiding chains around complex machinery pathways. Choosing a high-performance sprocket system is crucial for long-term operational success.
We use premium medium-carbon steels like AISI 1045 or heavy-duty alloy steels like 40Cr. For corrosive environments, we offer grades 304 and 316 stainless steel to ensure rust resistance and long service life.
Sprocket teeth are induction-hardened to HRC 45-55. This deep hardening increases wear resistance and extends chain life by reducing friction under high tension.
Our sprockets feature integrated, sealed ball bearings (such as 6200 series) pre-lubricated with high-temperature synthetic grease, ensuring low rotational resistance and quiet operation.
| ANSI Code | Pitch | Tooth Range | Standard Bore Diameters | Bearing Type | Material Options |
|---|---|---|---|---|---|
| ANSI 80 (Single/Double) | 1.000" (25.40 mm) | 12T - 30T | 1/2", 5/8", 3/4", 1" | Dual Sealed Ball Bearing | C45 / AISI 1045 / 40Cr / SUS304 |
| ANSI 80-2 (Double Strand) | 1.000" (25.40 mm) | 15T - 25T | 3/4", 1", 1-1/4" | Heavy-Duty Roller Bearing | AISI 1045 / Alloy Steel |
| ANSI 80-3 (Triple Strand) | 1.000" (25.40 mm) | 17T - 25T | 1-1/4", 1-1/2" | Precision Needle Bearing | Forged Carbon Steel / Cast Iron |
As global automation increases, heavy industries face challenges like rising operational costs, mechanical downtime, and supply chain delays. High-precision ANSI 80 chain idler sprockets are critical components in primary industrial sectors:
In harsh mining environments, dust, abrasive grit, and shock loads quickly wear down drivetrain systems. Our hardened 80 Chain Idler Sprockets work alongside Boao's impact idlers and heavy-duty steel wire rope core conveyor belts to keep coal, iron ore, and aggregates moving reliably.
High-speed distribution and agricultural processing require continuous operation. The combination of our lightweight, wear-resistant PVC-PU conveyor belts and precision-balanced idler sprockets ensures smooth material flow with minimal downtime.
Operating in extreme heat demands components that resist thermal expansion. Our heat-resistant conveyor belts and high-temperature lubricated ANSI 80 sprockets operate reliably in conditions up to 200°C without mechanical failure.
Boao maintains a dedicated chemical analysis lab and physical testing center. We track every stage of production—from raw materials to final QC. Our strict quality standards ensure that no unqualified parts leave our facility.
Our experienced technical support team and reliable after-sales service help us export products to major industrial markets worldwide, supporting steel mills, coal mines, power stations, and shipping ports.
As a single-source manufacturer, Hebei Boao Rubber Technology provides a wide range of conveyor belts, supporting steel structures, and drivetrain parts tailored to complex engineering needs:
- Multi-ply fabric belts (EP, Nylon NN, Cotton PP)
- Heat-resistant, cold-resistant, and high-temperature conveyor belts
- Flame-retardant (FR) rubber belts for underground mining safety
- Oil, acid, and alkali-resistant conveyor belts
- Profiled belts (Chevron, Patterned, Raised-edge, Bucket lifting)
- Standard and custom idler roller series (Troughing, Impact, Return)
- Ceramic lagging, motorized pulleys, and drive drum rollers
- Tensioning assemblies, centering brackets, and heavy-duty brackets
- Specialized magnetic separation rollers and scrapers
- Custom sprocket profile design (ANSI, DIN, ISO standards)
- On-site belt vulcanization, jointing, and cold bonding services
- Scheduled maintenance, wear monitoring, and parts supply management
We hold complete product certifications to verify that our components meet international quality, durability, and safety specifications.
Over more than 20 years, our engineering solutions have supported major power stations, iron and steel works, and transport lines. Here are some of our trusted partners:
China Railway Group
Conch Cement
Datong Coal Group
Tsingshan Group
Jidong Cement Group
Jinmei Group
Taihang Steel
Puyang Steel Group
Here are answers to common technical and sourcing questions about ANSI 80 chain idler sprockets:
An ANSI 80 sprocket is designed for a 1-inch (25.4 mm) pitch chain. Key specifications include a nominal roller width of 0.625 inches (15.88 mm) and a roller diameter of 0.625 inches. When ordering idlers, specify the tooth count (e.g., 15T, 17T), bearing bore size (e.g., 5/8" or 3/4"), and whether you require single, double, or triple strand options.
Unlike drive sprockets, idler sprockets rotate constantly under chain tension. Hardening the teeth (typically using induction hardening to HRC 45-55) prevents hook wear and tooth deformation. This maintains proper tooth geometry, which helps extend the life of both the sprocket and the chain.
Select the bearing based on your operating environment. For standard dusty conveying, choose a heavy-duty ball bearing with rubber seals (LLS/2RS) to keep out contaminants. For high-load, low-speed applications, needle bearings or tapered roller bearings offer greater durability.
Even minor sprocket misalignment can cause rapid wear on the chain link plates and sprocket tooth faces. Misalignment can also cause the chain to climb the teeth, potentially damaging your conveyor belts (such as our Jinao EP or steel wire rope belts). We recommend using heavy-duty brackets to ensure stable alignment.
Yes. For high-temperature environments, we manufacture sprockets from premium carbon steels and equip them with high-temperature bearings and synthetic grease rated up to 250°C. These work well alongside our heat-resistant rubber conveyor belts.
Our engineering team is ready to design and manufacture components that meet your exact operational requirements. Contact Hebei Boao Rubber Technology for reliable products and dedicated technical service plans.
Manufacturing Facility: Rubber Industrial Park, Boye County, Baoding, Hebei Province, China.
Boao Rubber
