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L Type Elastic Jaw Coupling – Powder Metallurgy, Maintenance-Free, 0.05-75 N·m
Model Number
Check below, custom
L-035
L-050
L-070
L-075
L-090
L-095
L-099
L-100
L-110
L-150
L-190
L-225
L-276
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
L Type Elastic Jaw Coupling – Powder Metallurgy, Maintenance-Free, 0.05-75 N·m for Wave Soldering Machines
Factory Direct | Sintered Iron / Powder Metallurgy Hubs | High-Quality Rubber Spider | 0.05-75 N·m Torque | 6000-2000 RPM | Easy Assembly | Economical | Maintenance-Free | OEM Customizable
The Apexcoupling L Type series is a cost-effective elastic jaw coupling designed for reliable power transmission in light to medium-duty applications. Featuring a three-component design – two sintered iron/powder metallurgy hubs and one high-quality rubber spider – this coupling delivers excellent vibration damping, misalignment compensation, and shock absorption at an economical price point. The simple construction allows for quick and easy assembly and disassembly without special tools. Lightweight, compact, and requiring no lubrication, the L Type coupling is ideal for wave soldering machines, reflow soldering equipment, conveyors, pumps, compressors, and general industrial machinery.
✅ Economical and practical – commonly used in wave soldering machines. Powder metallurgy hubs – lightweight and cost-effective. Maintenance-free – no lubrication required. Quick and easy assembly. Wide model range – covers 0.05-75 N·m.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Apexcoupling |
| Model Series | L Type – Standard Jaw Coupling |
| Hub Material | Powder metallurgy / sintered iron (L035-L190); Cast iron (L225-L276) |
| Spider Material | High-quality rubber / NBR – oil-resistant, resilient |
| Spider Hardness | 80 Shore A (L050-L110); 55 Shore D (L050-L110); 90-95A (L150-L225) |
| Operating Temperature | -40°C to +100°C (NBR spider) |
| Backlash | Zero (with proper spider fit) |
| Misalignment Compensation | Angular, parallel, and axial |
| Fail-Safe Design | Continues to transmit power even if spider fails |
| Lubrication | None required – maintenance-free |
| Customization | OEM – custom bores and keyways |
| Applicable Industries | Wave soldering machines, reflow soldering equipment, SMT assembly, conveyors, pumps, compressors, fans, mixers, agitators |
| Place of Origin | Guangdong, China |
| Model | Min. Torque | Max. Torque | Max. Speed (rpm) | D (mm) | L0 (mm) | L1 (mm) | L2 (mm) | Min. (mm) | Max. (mm) | d (mm) | Moment of Inertia (kgf·cm²) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L‑035 | 0.05 | 0.15 | 6000 | 16.1 | 20.5 | 6.5 | 7.5 | 4 | 8 | 0.1 | 0.04 | 0.04 |
| L‑050 | 0.15 | 0.45 | 4500 | 27 | 43.2 | 15.5 | 12.2 | 6 | 16 | 1 | 0.14 | 0.14 |
| L‑070 | 0.3 | 0.9 | 3600 | 35 | 49.2 | 18.5 | 12.2 | 6 | 20 | 3.3 | 0.27 | 0.27 |
| L‑075 | 0.5 | 1.5 | 3600 | 45 | 54.4 | 21 | 12.4 | 8 | 26 | 9.1 | 0.45 | 0.45 |
| L‑090 | 0.8 | 2.4 | 3000 | 54 | 55 | 21 | 13 | 10 | 28 | 15 | 0.6 | 0.6 |
| L‑095 | 1 | 3 | 3000 | 55 | 61 | 24 | 13 | 10 | 28 | 17 | 0.7 | 0.7 |
| L‑099 | 2 | 6 | 3000 | 66 | 73 | 30 | 18 | 12 | 36 | 42 | 1.4 | 1.4 |
| L‑100 | 2.5 | 7.5 | 3000 | 66 | 88 | 35 | 18 | 12 | 36 | 43 | 1.5 | 1.5 |
| L‑110 | 5 | 15 | 2500 | 85 | 110 | 44 | 22 | 12 | 48 | 147 | 3 | 3 |
| L‑150 | 10 | 30 | 2500 | 96 | 118.5 | 46 | 26.5 | 16 | 48 | 258 | 4 | 4 |
| L‑190 | 15 | 45 | 2000 | 115 | 138.5 | 56 | 26.5 | 16 | 58 | 628 | 6.9 | 6.9 |
| L‑225 | 20 | 60 | 2000 | 127 | 152.5 | 63.5 | 26.5 | 18 | 60 | 1685 | 40.45 | 40.45 |
| L‑276 | 25 | 75 | 2000 | 157 | 200 | 79 | 41 | 22 | 73 | 5265 | 21.36 | 21.36 |
Product Structure
Two Powder Metallurgy Hubs – Sintered iron (L035-L190) or cast iron (L225-L276), precision-machined with jaws .
High-Quality Rubber Spider – NBR (nitrile butadiene rubber) – resilient, elastic, and oil-resistant .
Fail-Safe Design – Continues to transmit power even if spider fails .
💡 How it works: The L Type coupling consists of two hubs with interlocking jaws and a rubber spider insert. Power is transmitted through the spider, which absorbs shock, dampens vibration, and compensates for misalignment. The simple three-piece design allows for quick assembly and disassembly without special tools.
Product Features & Advantages
| Advantage | Benefit |
|---|---|
| Powder Metallurgy Hubs | Cost-effective, lightweight, precision-made – ideal for high-volume applications |
| High-Quality Rubber Spider | Resilient, elastic, excellent vibration damping and shock absorption |
| Maintenance-Free | No lubrication required – reduces operating costs |
| Easy Assembly & Disassembly | Simple three-piece design – no special tools required |
| Lightweight | Low inertia – suitable for high-speed applications |
| Fail-Safe Design | Continues to transmit power even if spider fails – minimizes downtime |
| Misalignment Compensation | Accommodates angular, parallel, and axial misalignment |
| No Metal-to-Metal Contact | Reduces wear and extends service life |
| Oil & Dirt Resistant | Suitable for harsh industrial environments |
| Wide Model Range | L035 to L276 – covers most industrial applications |
| Industry Standard | Interchangeable with Lovejoy, Martin, Browning, TB Woods |
| OEM Customization | Custom bores and keyways available |
Why L Type Couplings Are Ideal for Wave Soldering Machines
Wave soldering machines are used in large-scale electronic assembly processes to solder components to printed circuit boards (PCBs). L Type couplings are commonly used in these machines for several reasons:
| Requirement | How L Type Coupling Meets It |
|---|---|
| Cost-effective | Powder metallurgy hubs provide economical solution for high-volume equipment |
| Lightweight | Low inertia – suitable for conveyor drives |
| Maintenance-free | No lubrication – reduces downtime in production environments |
| Easy maintenance | Simple three-piece design – quick spider replacement |
| Vibration damping | Rubber spider absorbs shock – protects sensitive electronics |
| Fail-safe | Continues to operate if spider fails – minimizes production stops |
✅ Commonly used in wave soldering and reflow soldering equipment – L070 and L075 are popular sizes .
Applications
Wave Soldering Machines – Conveyor drives, pump drives
Reflow Soldering Equipment – Conveyor systems
SMT Assembly Lines – Pick-and-place, conveyor drives
Conveyors – Material handling systems
Pumps – Centrifugal, gear, and diaphragm pumps
Compressors – Air and gas compressors
Fans & Blowers – Ventilation systems
Mixers & Agitators – Industrial mixing equipment
Packaging Machinery – Wrapping and sealing machines
General Industrial Machinery – Light to medium-duty power transmission
Spider Material Options
| Spider Material | Torque Capacity | Temperature Range | Best For |
|---|---|---|---|
| NBR Rubber (Standard) | Baseline | -40°C to 100°C | General purpose, oil resistance, vibration damping |
| Urethane | Higher | Limited | Higher torque, less damping |
| Hytrel® | Up to 3x NBR | -51°C to 121°C | High torque, high temperature, oil/chemical resistance |
| Bronze | Up to 3x NBR | -40°C to 232°C | Low speed (≤250 RPM), extreme conditions |
✅ The standard NBR rubber spider provides the best combination of cost, vibration damping, and oil resistance for most applications.
Why Choose Apex Coupling for L Type Couplings?
| Advantage | Description |
|---|---|
| Factory Direct | Competitive B2B pricing – no middlemen |
| Premium Materials | Powder metallurgy hubs + NBR rubber spider – durable and reliable |
| Cost-Effective | Economical solution for high-volume applications |
| Maintenance-Free | No lubrication required – reduces operating costs |
| Easy Assembly | Simple three-piece design – quick installation |
| Industry Standard | Interchangeable with Lovejoy, Martin, Browning |
| Wide Model Range | L035 to L276 – covers most industrial needs |
| OEM Customization | Custom bores and keyways available |
| ISO9001 Certified | Quality assured manufacturing |
FAQ
Q: What is an L Type coupling?
A: The L Type coupling is a three-piece jaw coupling consisting of two powder metallurgy (sintered iron) hubs and one rubber spider. It is a cost-effective, lightweight, maintenance-free solution for light to medium-duty power transmission .
Q: What materials are used?
A: The hubs are made of powder metallurgy / sintered iron for L035 to L190 sizes and cast iron for L225 to L276 . The spider is made of high-quality rubber (NBR) – oil-resistant and resilient .
Q: What are the common model sizes?
A: Standard sizes include L035, L050, L070, L075, L090, L095, L099, L100, L110, L150, L190, L225, and L276 . L070 and L075 are commonly used in wave soldering machines .
Q: Does the coupling require lubrication?
A: No. The L Type coupling is maintenance-free – no lubrication required .
Q: Is the coupling easy to install?
A: Yes. The simple three-piece design allows for quick assembly and disassembly without special tools .
Q: Can the coupling compensate for misalignment?
A: Yes. It accommodates angular, parallel, and axial misalignment.
Q: Is this coupling interchangeable with Lovejoy?
A: Yes. The L Type series is interchangeable with Lovejoy, Martin, Browning, TB Woods, and other L-jaw couplers .
Q: What happens if the spider fails?
A: The coupling features a fail-safe design – it will continue to transmit power even if the spider fails, minimizing downtime until replacement .
Q: What is the operating temperature range?
A: The NBR rubber spider operates from -40°C to +100°C .
Q: Can I get a custom coupling?
A: Yes. We offer OEM customization – custom bores and keyways available.
Request a Quote
Send us your model size (e.g., L070, L095), bore size, and application details. Our engineers will recommend the optimal model and provide a quotation within 24 hours.
L type coupling
Elastic jaw coupling
Powder metallurgy coupling
L series jaw coupling
Wave soldering machine coupling
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Sintered iron coupling
L-035 L-050 L-070 L-075 L-090 L-095 L-099 L-100 L-110 L-150 L-190 L-225 L-276
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