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High Quality JS Series Snake Spring Grid Coupling – Reliable Power Transmission for Your Industrial Applications
Hebei Speed Torque Transmission Technology Co., Ltd., established in 2017 and located in Cangzhou, Hebei, China, is a dedicated manufacturer of premium couplings. With a factory size of 3,000–5,000 square meters and an annual export value of US$5–10 million, we have supplied our products to over 15 global markets, including North America, Europe, and Southeast Asia. Our JS Series Snake Spring Grid Coupling is designed to connect shaft axles and reducers with superior torsional flexibility, damping vibrations, and compensating for misalignment. Built with ISO9001:2015 certified quality management, this coupling delivers long service life and low maintenance, making it the ideal choice for heavy-duty power transmission systems.
Whether you are operating conveyors, pumps, fans, or crushers, the JS Series grid coupling ensures smooth torque transfer while protecting connected equipment from shock loads. Its unique snake spring design absorbs peak loads and reduces noise, extending the life of your machinery. Below we present a detailed overview of its features, specifications, and benefits.
Key Features & Technical Advantages
- Snake Spring Design: The grid spring made of high-grade alloy steel provides high torsional flexibility and excellent damping characteristics. It effectively absorbs vibration and shock loads, reducing stress on bearings and gears.
- Misalignment Compensation: Accommodates angular, parallel, and axial misalignment, simplifying installation and reducing the need for precise alignment.
- Maintenance-Friendly: The coupling can be disassembled without moving the connected equipment. The grid spring is replaceable, and the housing can be reused – lowering downtime and replacement costs.
- Lubrication Options: Pre-greased with high-temperature grease for extended life; also available in maintenance-free versions with sealed covers.
- Robust Construction: Cast iron or steel hubs with precision-machined teeth ensure reliable engagement with the grid spring. Corrosion-resistant coating available for harsh environments.
- Wide Range of Sizes: From JS1 to JS13 (and custom sizes), covering torque from 10 N·m to over 10,000 N·m, suitable for small pumps to large crushers.
- ISO9001 Certified: Every coupling is manufactured under strict quality control, ensuring consistent dimensions and material properties.
Typical Technical Specifications (JS Series)
| Model | Rated Torque (N·m) | Max Speed (RPM) | Bore Range (mm) | Weight (kg) |
| JS1 | 25 | 4000 | 14-35 | 0.8 |
| JS2 | 50 | 3600 | 19-45 | 1.2 |
| JS3 | 100 | 3200 | 24-55 | 2.0 |
| JS4 | 200 | 2800 | 30-70 | 3.5 |
| JS5 | 400 | 2400 | 40-90 | 6.0 |
| JS6 | 800 | 2000 | 50-110 | 10.0 |
| (Other models up to JS13 available) | Custom bore and keyway configurations upon request | |||
Benefits for Your Equipment
- Reduced Downtime: Replace only the grid spring without disassembling shafts or removing the hubs from motors/reducers.
- Extended Machine Life: Damping effect protects bearings, gears, and seals from peak torque and vibrations – proven in conveyor and crusher applications.
- Easy Installation: Split cover design allows quick visual inspection and simple assembly. No special tools required.
- Energy Savings: Smooth torque transmission reduces energy loss compared to chain or gear couplings.
- Versatile Mounting: Can be installed horizontally, vertically, or at any angle with proper lubrication retention.
Trusted Supply Chain & Quality Assurance
Our manufacturing facility in Cangzhou employs over 100 skilled workers and runs on ISO9001:2015 quality systems. Every coupling undergoes dimensional inspection, hardness test, and static torque test before shipment. With annual export value exceeding US$5 million, we ship to over 15 countries and regions including the USA, Germany, Brazil, Australia, and Southeast Asia. Our products are packed in sturdy plywood cases or heavy-duty cartons, shipped via Port of Shanghai, Tianjin, or Qingdao. We offer OEM/ODM services for customized bore sizes, keyways, and coatings.
Choosing Hebei Speed Torque means partnering with a professional team that understands the demands of continuous operation. Our JS Series grid couplings are already used by global OEMs in mining, cement, steel, and power generation sectors. Contact us today for a quotation, and experience the reliability of our coupling solutions.
Frequently Asked Questions (FAQ)
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Q: Do JS Series grid couplings require lubrication?
A: Standard versions are pre-greased and require periodic re-greasing (interval depends on speed and load). We also offer sealed, maintenance-free versions with long-life grease. Please specify your preference when ordering. -
Q: Can the coupling handle misalignment?
A: Yes. The JS Series compensates for angular misalignment up to 1.5°, parallel misalignment up to 0.5 mm, and axial displacement up to ±2 mm (depending on size). For larger misalignment, please consult our technical team. -
Q: What is the operating temperature range?
A: Standard couplings operate from -30°C to +100°C. For high-temperature environments (up to 250°C), we can supply models with special seals and heat-resistant grease. Contact us for such requirements. -
Q: Are the hubs and cover made of cast iron or steel?
A: Most JS series hubs are made of ductile iron (GGG40) or cast steel, depending on size. Covers are typically pressed steel. For corrosive environments, stainless steel options are available as a customization. -
Q: Can I replace only the grid spring without removing the hubs?
A: Absolutely. You can slide out the cover, unlatch the grid spring, and install a new one. The hub remains on the shaft – this minimizes downtime significantly compared to other coupling types. -
Q: How do I select the correct JS series coupling for my application?
A: You need to know the required torque (including service factor), shaft diameters, and bore types. Our technical team can assist with selection based on motor power, RPM, and the driven equipment. A selection guide is available on request. -
Q: What are the available bore and keyway types?
A: We can provide straight bore, tapered bore, splined bore, and double keyways. Metric or inch dimensions are both available. Please provide your shaft drawings for exact matching. -
Q: What is your minimum order quantity (MOQ) and lead time?
A: MOQ is 1 piece for standard models. Lead time is typically 7–15 days for standard sizes, and 20–30 days for customized orders. We keep stock for popular sizes like JS3–JS6.
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