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Germany Quality Shaft Flexible Jaw Coupling – Lovejoy Replacement, Steel/Aluminum Hubs, OEM Customizable
Model Number
Check below, custom
DF-25×34
- Phone : +86 13431039760
- Wechat : +86 13431039760
- Whatsapp : +86 13431039760
- Email : ella@apexcoupling.com
Product Description
Germany Quality Shaft Flexible Jaw Coupling – Lovejoy Replacement, Steel/Aluminum Hubs, Zero Backlash
Factory direct | Aluminum or steel hubs | Bayer Germany elastomer | Zero backlash | 0.01mm precision | Fail-safe design | No metal-to-metal contact | Oil, dirt, sand, moisture & grease resistant | OEM/ODM/OBM
The Apexcoupling Germany Quality Jaw Coupling is a precision-engineered flexible coupling designed as a direct replacement for Lovejoy L-series and GS-series jaw couplings. Featuring a three-piece design – two metal hubs (available in aluminum or steel) and one elastomeric spider – this coupling delivers reliable torque transmission, vibration damping, and misalignment compensation for a wide range of industrial applications. The elastomer material is sourced from Bayer Germany, ensuring superior oil resistance, chemical resistance, and long service life. With zero backlash capability and precision within 0.01mm, this coupling is ideal for construction machinery, pumps, conveyors, compressors, fans, and general industrial drives.
✅ Lovejoy compatible – dimensionally interchangeable with L-series and GS-series couplings. Germany quality at factory-direct pricing.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Brand | Apexcoupling |
| Type | Flexible / Jaw / Elastomeric |
| Structure | 3-piece: 2 hubs + 1 spider |
| Hub Material Options | Aluminum alloy or Steel (carbon steel / stainless steel available) |
| Spider Material | Bayer Germany elastomer (NBR/SOX rubber, Polyurethane, Hytrel® available) |
| Spider Hardness Options | 80A, 92A, 95/98A, 64D Shore |
| Surface Treatment | Anodizing (aluminum) or Black oxide (steel) |
| Fastening Method | Set screw, clamping, or keyway options available |
| Bore Diameter | 10 mm – 100 mm (custom available) |
| Rated Torque | Up to 6,228 in·lbs / 704 N·m (L-series) |
| Maximum Speed | Up to 14,000 RPM (varies by size) |
| Backlash | Zero (with precision fit) |
| Misalignment Compensation | Angular up to 1°, Parallel up to 0.015″ |
| Fail-Safe Design | Yes – continues to function if spider fails |
| No Metal-to-Metal Contact | Yes |
| Chemical Resistance | Oil, dirt, sand, moisture, and grease resistant |
| Customized support | OEM, ODM, OBM |
| Applicable Industries | Building material shops, manufacturing plants, machinery repair shops, retail, construction works, energy & mining, metallurgy |
| Warranty | 1 Year |
| Place of Origin | Guangdong, China |
🔧 Custom bores, keyways, spider hardness, and hub materials available. Contact us with your specifications.
Lovejoy Compatibility – Direct Replacement
Our Germany Quality Jaw Coupling is dimensionally interchangeable with Lovejoy L-series and GS-series jaw couplings:
| Apex Model | Lovejoy Equivalent | Description |
|---|---|---|
| LJ-035 | L035 | Miniature jaw coupling |
| LJ-050 | L050 | Standard jaw coupling |
| LJ-070 | L070 | Standard jaw coupling |
| LJ-075 | L075 | Standard jaw coupling |
| LJ-090 | L090 | Standard jaw coupling |
| LJ-095 | L095 | Standard jaw coupling |
| LJ-099 | L099 | Standard jaw coupling |
| LJ-100 | L100 | Standard jaw coupling |
| LJ-110 | L110 | Standard jaw coupling |
| LJ-150 | L150 | Standard jaw coupling |
| LJ-190 | L190 | Heavy-duty jaw coupling |
| LJ-225 | L225 | Heavy-duty jaw coupling |
| LJ-276 | L276 | Heavy-duty jaw coupling |
| GS-14 to GS-55 | GS Series | Curved jaw – zero backlash |
✅ Drop-in replacement – no design changes required. Same dimensions, superior quality, better value.
Product Structure
Two Hubs – Available in aluminum alloy (lightweight, corrosion-resistant) or steel (high strength, heavy-duty) with precision-machined jaws.
Elastomeric Spider – Bayer Germany material (NBR/SOX rubber, Polyurethane, or Hytrel®) providing torque transmission, vibration damping, and misalignment compensation.
Fastening Method – Set screw, clamping, or keyway options available.
💡 How it works: The two hubs are connected by an elastomeric spider that sits between the jaws. As the driving hub rotates, the spider transmits torque to the driven hub while absorbing shock, dampening vibration, and compensating for angular and parallel misalignment.
Hub Material Options
| Material | Properties | Best For |
|---|---|---|
| Aluminum Alloy | Lightweight, corrosion-resistant, low inertia, anodized finish | High-speed applications, weight-sensitive drives, general industry |
| Steel (Carbon Steel) | High strength, durability, wear resistance, black oxide finish | Heavy-duty applications, high torque, construction machinery |
| Stainless Steel | Superior corrosion resistance, hygienic | Food processing, marine, chemical environments |
Spider Material Options – Bayer Germany
| Spider Material | Torque Capacity | Temperature Range | Best For |
|---|---|---|---|
| SOX (NBR) Rubber | Baseline | -40°F to 212°F (-40°C to 100°C) | General purpose, oil-resistant, good damping |
| Polyurethane (Urethane) | 1.5x NBR | -30°F to 194°F (-34°C to 90°C) | Higher torque, good oil/chemical resistance |
| Hytrel® | 3x NBR | -20°F to 230°F (-29°C to 110°C) | High torque, high temperature, excellent oil/chemical resistance |
| Bronze | 3x NBR | Extreme temperatures | Low speed (≤250 RPM), high torque, harsh environments |
✅ Bayer Germany elastomer ensures superior quality, consistency, and long service life.
Product Features & Advantages
| Advantage | Benefit |
|---|---|
| Germany Quality Elastomer | Bayer material – superior oil resistance, chemical resistance, and long service life |
| Lovejoy Compatible | Dimensionally interchangeable – drop-in replacement |
| Zero Backlash | Precision fit – accurate positioning for servo and motion control applications |
| 0.01mm Precision | High accuracy – consistent performance |
| Aluminum or Steel Hubs | Choose based on your application – lightweight or heavy-duty |
| Multiple Spider Options | NBR, Polyurethane, Hytrel®, or Bronze – match your torque, temperature, and damping requirements |
| Fail-Safe Design | Continues to function if spider fails – minimizes downtime |
| No Metal-to-Metal Contact | Reduces wear, noise, and maintenance |
| Oil, Dirt & Moisture Resistant | Withstands harsh industrial environments |
| Misalignment Compensation | Accommodates angular (up to 1°) and parallel misalignment – protects bearings and seals |
| Easy Installation | Simple 3-piece assembly – quick and straightforward |
| OEM Customization | Custom bores, keyways, spider materials, and hub materials available |
Applications
Construction Machinery – Building material handling, conveyors, hoists
Pumps – Centrifugal, gear, and diaphragm pumps
Conveyors – Material handling systems
Compressors – Air and gas compressors
Fans & Blowers – Ventilation systems
Mixers – Industrial mixing equipment
Wood Splitters – Log splitting equipment
Gearboxes – Input/output shaft connections
Agricultural Machinery – Farm equipment, harvesters
Mining Equipment – Crushers, feeders, conveyors
Machine Tools – Main spindle drives
Servo & Positioning Drives – Zero backlash, flexible connection
Packaging Machinery – Registration and indexing systems
Printing Equipment – Register control, high-speed operation
Why Choose Apex Coupling for Germany Quality Jaw Couplings?
| Advantage | Description |
|---|---|
| Factory Direct | Competitive B2B pricing – no middlemen |
| Germany Quality Elastomer | Bayer material – superior durability and performance |
| Lovejoy Compatible | Direct drop-in replacement – no design changes required |
| Aluminum or Steel Hubs | Choose the right material for your application |
| Multiple Spider Options | NBR, Polyurethane, Hytrel®, or Bronze – match your requirements |
| Zero Backlash | Precision performance for motion control applications |
| 0.01mm Precision | High accuracy – consistent quality |
| Fail-Safe Design | Minimizes downtime – continues to function if spider fails |
| OEM Customization | Custom bores, keyways, materials, and finishes |
| ISO9001 Certified | Quality assured for international buyers |
FAQ
Q: What is a jaw coupling?
A: A jaw coupling (also called a spider coupling or L-type coupling) is a flexible coupling consisting of two metal hubs and an elastomeric spider. It transmits torque while absorbing shock, dampening vibration, and compensating for misalignment.
Q: Is this coupling a direct replacement for Lovejoy?
A: Yes. Our Germany Quality Jaw Coupling is dimensionally interchangeable with Lovejoy L-series and GS-series jaw couplings. Drop-in replacement – no design changes required.
Q: What materials are available for the hubs?
A: We offer aluminum alloy (lightweight, corrosion-resistant), carbon steel (high strength, heavy-duty), and stainless steel (superior corrosion resistance).
Q: What spider materials are available?
A: We offer SOX (NBR) rubber (standard, oil-resistant), polyurethane (1.5x torque), Hytrel® (3x torque, high temperature), and bronze (low speed, extreme temperature).
Q: What is the source of the elastomer material?
A: The elastomer material is sourced from Bayer Germany – ensuring superior quality, consistency, and long service life.
Q: Does the coupling have backlash?
A: The GS series (curved jaw) offers zero backlash capability. The L-series (standard jaw) offers minimal backlash with precision fit.
Q: What is the precision tolerance?
A: Precision can be within 0.01mm.
Q: Is the coupling fail-safe?
A: Yes. The coupling will continue to function even if the elastomeric spider fails – minimizing downtime.
Q: Can the coupling compensate for misalignment?
A: Yes. It accommodates angular misalignment up to 1° and parallel misalignment up to 0.015″.
Q: Is the coupling resistant to oil and dirt?
A: Yes. The coupling is resistant to oil, dirt, sand, moisture, and grease.
Q: Can I get a custom coupling?
A: Yes. We offer OEM, ODM, and OBM support – custom bores, keyways, spider materials, and hub materials available.
Request a Quote
Send us your required coupling size (e.g., L075, L100, GS28), bore size, hub material preference (aluminum or steel), spider material preference, and application details. Our engineers will recommend the optimal model and provide a quotation within 24 hours.
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