Unlike rubber-based elastic couplings, the HL Type Elastic Pin Coupling employs high-strength nylon for its transmission pins, leveraging the inherent toughness and shear resistance of the nylon material to facilitate power transmission. While traditional rigid direct-drive methods are prone to common issues such as keyway wear, component fracturing, equipment vibration, and abnormal noise, this product offers a perfect solution; it relies on the nylon pins to cushion the impact of starts and stops while dampening vibrations caused by alternating loads.
1. The material of elastic components is linen so it has high hardness and resistance to wear and apply for the circumstance with causticity.
2. Circle surface of metal brake ring operated by quenching.
3. The bore dimensions, keyway dimensions and designation method of the coupling comply with the requirements of GB/T 3852-1977, "Connection Types and Dimensions of Shaft Bores". The bores of the two coupling halves can be selected independently and combined in any configuration.
4. Working temperature: From-20 to +70℃.
5. Original standard is international standard GB5051-85.
For Zand J type with counterbore,it is length of fit not include,L value as the drawing below
HL6 type elastic pin coupling
Drive end: Y type shaft hole, A type keyway, d1 is 65mm, L is 142mm
Driven end: Y type shaft hole, A type keyway, d2 is 75mm, L is 142mm
Coupling: HL6 YA75×142YA65×142 GB/T5014-2003
Material of pin is MC6 lylon
In order to improve touch condition and compensate capacity, one end of pin should be made into drum shape.
The HL Type Elastic Pin Coupling has been specifically optimized for standard operating environments characterized by frequent starts/stops and unstable loads. It is compatible with the vast majority of general-purpose mechanical equipment involving medium-level loads, thereby optimizing equipment operational status right from the source.
- Adaptability to Frequent Reversals: Specifically designed for transmission systems requiring repetitive starts/stops and continuous directional switching, the elastic nylon components possess sufficient toughness to withstand the impact loads generated by alternating directions over the long term, effectively preventing issues related to material aging or fracture.
- Cushioning Load Fluctuations: When encountering minor load fluctuations or momentary peak loads during operation, the nylon pins utilize their inherent elasticity to cushion the impact and dissipate force, thereby preventing transmission noise and equipment vibration caused by load instability.
- Mitigating Rigid Connection Drawbacks: Serving as a replacement for traditional one-piece rigid couplings, this product softens the harsh impacts associated with rigid direct connections, effectively eliminating common equipment failures such as component fracture, keyway wear, body vibration, and operational noise.
- Sacrificial Overload Protection Mechanism: In the event of abnormal operating conditions—such as equipment jamming, stalling, or momentary overloading—the internal nylon pins are designed to fail first via shear fracture, thereby actively severing the entire torque transmission path. - Protection of High-Value Core Equipment: Overloads are effectively intercepted by the shearing of the elastic pins, preventing them from propagating to downstream structural components. This provides robust protection for expensive core components—such as motors, reducers, and spindles—safeguarding them against irreversible damage.
- Mechanically Stable Protection: The entire protection mechanism is purely mechanical in nature; it remains unaffected by factors such as power outages, signal failures, or environmental interference. Consequently, its protective stability far surpasses that of electronic alarm-based safety systems, making it ideally suited for complex and harsh industrial workshop environments.
Compared to standard elastic couplings, the HL Type Elastic Pin Coupling offers a higher load-bearing capacity and covers a broader range of application scenarios. It is capable of simultaneously accommodating various types of medium-load transmission equipment across multiple industries.
- Targeted Application Focus: Primarily designed for medium-load operating environments, it is ideally suited for mechanical equipment involving frequent start-stops, directional reversals, and alternating shock loads. It effectively addresses industry shortcomings—specifically, the insufficient load-bearing capacity of rubber couplings and the lack of shock absorption inherent in rigid couplings.
- Versatility Across Industries: The product's compatibility is not restricted by equipment category; it can be successfully implemented in mining machinery, comprehensive industrial production facilities, various light-industry processing machines, as well as fluid machinery such as water pumps and fans.
- Adaptability to New and Existing Equipment: Featuring standardized dimensions, the coupling can be directly pre-installed as an OEM component in new equipment. It also serves as an ideal replacement for old, worn-out couplings in existing machinery; the retrofit process is low-difficulty and requires no modification to the equipment's original transmission structure.
As the original manufacturer of the HL Type Elastic Pin Coupling, our company has dedicated years to the R&D and manufacturing of various elastic couplings and torque limiters. We provide comprehensive, one-stop support services to domestic and international buyers—covering every stage from product quality control and delivery to product selection and after-sales support.
The entire series of HL-type couplings undergoes integrated, in-house production. The nylon elastic pins—the only outsourced component—are manufactured using strictly procured, high-purity, wear-resistant raw materials. Every batch undergoes rigorous torque and shear testing prior to leaving the factory.
We maintain a ready inventory of standard coupling models and spare nylon pins. We are equipped to fulfill orders ranging from single-unit samples to large-scale bulk purchases, thereby eliminating the lengthy lead times typically associated with custom manufacturing cycles.
Our technical team analyzes factors such as equipment load type, start-stop frequency, and shaft diameter parameters to distinguish between the HL elastic pin and TL elastic sleeve product series, thereby matching each client with the most suitable coupling solution.
We provide dimensional drawings and installation tutorials free of charge, and offer remote technical guidance specifically for our overseas clients. Additionally, we support the customization of non-standard bore sizes and pins with specialized hardness levels to ensure compatibility with equipment operating under unique conditions.
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No. 1068 Jinyang East Road, Lujia Town, Kunshan City, Jiangsu Province, China
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If you have any enquiry about quotation or cooperation, please feel free to email us at jiteng2009@126.com or use the following inquiry form.Our sales representative will contact you within 24 hours. Thank you for your interest in our products.
