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LZ Series Flexible Pin and Gear Coupling | High-Torque Nylon Pin Shaft Coupling for Water Pumps | OEM Supported
Model Number
Check below, custom
| Specification | Shaft Bore D1 (mm) | Shaft Bore D2 (mm) | Outer Diameter (mm) | Overall Length |
|---|---|---|---|---|
| LZ (ZL) | 12-110 | 12-110 | 76-260 | Consult customer service |
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
High-Torque Mechanical Synchronic: LZ Series Flexible Pin & Gear Couplings
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The LZ Series Flexible Pin and Gear Coupling
 represents a premium, heavy-duty solution for transmitting massive torque across fluid pumps, heavy-duty reducers, and conveyor systems. Engineered strictly to national GB/T5015-2003 manufacturing frameworks, the LZ design combines the strength of rigid gear couplings with the damping compliance of modern elastomeric pin joints. The structure features semi-circular internal and external grooves machined into the mating sleeve and hubs, locking high-strength wear-resistant nylon pins into place. This unique configuration maximizes torque distribution while allowing smooth replacement of wear parts, eliminating the need to completely de-couple large industrial driving shafts.
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Core Product Advantages
Massive Industrial Torque Delivery: Specially engineered for high-load and large-scale industrial drive lines, including heavy-duty water pumps, mixers, and processing equipment.
Premium High-Strength Nylon Pins: Equipped with specialized high-density nylon formulation pins displaying exceptional shear strength, high wear limits, and corrosion resistance inside moisture-heavy environments.
H7 Precision Machining Tolerances: Manufactured following demanding international engineering guidelines, ensuring a flawless finished bore tolerance rating of H7 for smooth concentric fitment and zero dynamic imbalance.
Versatile Locking Integration: Supports traditional parallel keyways and can be adapted to secure locking profiles via internal expansion coupling sleeves / shrink discs.
Reliable Thermal Working Spectrum: Performs continuously within standard industrial environments from -20°C to +70°C without encountering material brittleness or structural softening.
Simplified Maintenance Profile: The drop-in pin architecture allows maintenance crews to check and replace worn nylon elements in minutes, reducing total plant downtime.
Full Multi-Series Adaptability: Part of our extensive pinning portfolio which supports standalone networks along with complementary FCL, LT, and LX (HL) industrial framing installations.
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Technical Specifications Table
| Attribute | Specification Details |
| Product Model Class | LZ Series Elastic Pin and Gear Coupling |
| Manufacturing Standard | Compliant with GB/T5015-2003 / GB/T3852-1997 Frameworks |
| Finished Shaft Tolerance | Ultra-Precise Finished Bore H7 Profiling |
| Pin Insert Element | High-Strength Corrosion-Resistant Engineering Nylon Pins |
| Tightening Profiles | Standard Keyways & Keyless Expansion Sleeves (Shrink Discs) Supported |
| Thermal Workspace Range | Safe Continuous Functioning From -20°C to +70°C |
| Core Applications | Medium-to-Large Water Pumps, Conveyor Lines, Gearbox Outputs |
| Customized Support | Full OEM, ODM, Drawing-Based Custom Machining Tracks |
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LZ Pin Gear Coupling, Flexible Shaft Coupling, Nylon Pin Coupling, Water Pump Shaft Link, High Torque Pin Coupling, GB/T5015-2003 Coupling.
Product Show
LZ Pin Gear Coupling
