The GL Type Roller Chain Coupling stands as a classic semi-rigid connector within the field of heavy-duty industrial transmission. Unlike elastic couplings made of rubber or nylon, this product dispenses with elastic cushioning elements; instead, it relies on the meshing action of a double-row roller chain and dual sprockets to transmit power. This design effectively combines the high load-bearing capacity characteristic of rigid couplings with the misalignment compensation capabilities typical of flexible couplings.
The chains of duplex roller chain coupling should accord with the prescriptions of 《short pitch precision roller chain used for transmission》 of GB1243.1-83.
Keyway forms and sizes should accord with the prescriptions of GB/T 3852-1997.
Structure and sizes of housing cover can be selected upon requirements of clients.
Mark should accord with GB/T 3852-1997.
Simple structure, GL Type Roller Chain Coupling is convenient for assemble and disassemble, not apply for reverse driving with impacting loading.
Note: It is similar value of rotate inertia and weights of coupling in the sheet above.
The GL Type Roller Chain Coupling boasts exceptional environmental compatibility, remaining unaffected by dust, moisture, oil contamination, or extreme temperatures. It is capable of sustained, full-load operation across an ultra-wide temperature range spanning from -40°C to +120°C. The unit features high overall transmission rigidity, superior transmission efficiency, a low failure rate, and minimal maintenance requirements. Specifically developed for heavy-duty equipment operating at low-to-medium speeds with continuous, uninterrupted duty cycles, it resolves common issues associated with traditional couplings—such as susceptibility to aging, contamination, and poor heat resistance—making it the most cost-effective standard transmission component for high-load, complex operating conditions.
- Exceptional Environmental Compatibility: Unlike traditional elastic couplings—which are highly susceptible to aging and failure caused by dust, moisture, and high temperatures—the GL Type Roller Chain Coupling contains no aging-prone materials such as rubber or nylon. It ensures long-term, stable operation in harsh environments characterized by heavy dust accumulation, moisture, standing water, and minor oil contamination, demonstrating an extremely high tolerance for adverse environmental conditions.
- Ultra-Wide Temperature Tolerance: Constructed entirely from metal components, the unit remains unaffected by temperature fluctuations. Officially rated for an operating temperature range of -40°C to +120°C, it is equally capable of handling demanding outdoor operations in severe cold and high-temperature production environments within workshops, making it ideal for heavy industrial equipment operating outdoors where seasonal temperature variations are significant.
- Suitability for Continuous Heavy-Duty Operation: Featuring robust overall load-bearing capacity and high transmission rigidity, the coupling ensures power transmission with virtually no energy loss, thereby enabling equipment to operate continuously at full load for extended periods. Engineered natively to accommodate medium-to-heavy load conditions, effectively eliminating common failures such as slippage, breakage, and operational failure under heavy-duty loads.
Leveraging a comprehensive combination of high heat resistance, dirt resistance, high load-bearing capacity, and low maintenance requirements, the GL Type Roller Chain Coupling has been widely adopted across various heavy industries—spanning both stationary industrial machinery and mobile agricultural equipment.
- Mining & Metallurgy Equipment: Compatible with diverse mining machinery and metallurgical conveyor systems; designed to withstand the unique operational challenges of underground environments—characterized by high dust levels, high humidity, and significant diurnal temperature fluctuations—serving as a robust replacement for easily consumable elastic-type couplings.
- Chemical & Building Materials Machinery: Ideal for use with chemical mixing equipment and specialized transmission systems within building material production lines; capable of withstanding exposure to volatile chemical media and high-temperature kiln environments, while being fully adapted for continuous 24-hour operation.
- Agriculture & Conveying Equipment: Suitable for agricultural harvesting and tillage machinery, as well as various material conveyors, large-scale industrial fans, and associated speed reducers; designed to perform reliably in complex outdoor environments characterized by exposure to mud and dust.
- Usage Limitations: This product is primarily designed for medium-to-low speed, heavy-load, and continuous-operation scenarios. It is best suited for steady-state power transmission in harsh environments and is not recommended for precision transmission equipment involving ultra-high rotational speeds or frequent start-stop cycles with rapid directional reversals.
- Q1: What are the fundamental differences between the GL Type Roller Chain Coupling and elastic pin or tire-type couplings?
A1: The GL Type utilizes a fully metallic sprocket-and-chain meshing mechanism, representing a hybrid rigid-flexible structural design. It contains no aging-prone rubber or nylon components, offering distinct advantages in terms of high heat resistance, dust resistance, and extended service life. In contrast, elastic-type couplings rely on elastomeric elements for shock absorption; they possess lower upper limits for heat resistance, are susceptible to corrosion from oil and grease, and are generally better suited for standard, room-temperature, and clean operating environments.
- Q2: What is the maximum temperature resistance of this coupling?
fA2: The product is designed to operate within a temperature range of -40°C to 120°C. Its all-metal construction eliminates the issues of elastomer hardening and cracking often seen in other coupling types. Consequently, outdoor equipment utilizing this coupling can be started and operated directly even in severely cold winter conditions without the need for pre-heating or protective measures, making it ideally suited for heavy industrial machinery operating outdoors in northern regions.
- Q3: Is routine maintenance difficult?
A3: The overall maintenance difficulty is extremely low; compared to other transmission components, this product requires less frequent maintenance. It merely requires periodic replenishment of a small amount of lubricant for the double-row roller chain, eliminating the need for frequent disassembly and replacement of wear parts, thereby significantly reducing long-term operation and maintenance costs.
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