Safe Stainless Steel Door Hinge fire rated
2 year ago
The Brass Ball Bearing Door Hinges are positioned as a refined and reliable hinging solution that combines decorative appeal with smooth, long-lasting performance. Crafted from solid brass and equipped with precision ball bearings, they reduce friction and support stable door movement, even under frequent use, while maintaining a consistent, quiet operation. The ball bearing mechanism evenly distributes door weight to minimize wear and extend service life, making these hinges suitable for medium to heavy doors. With their classic metallic finish and dependable functionality, they are ideal for interior and exterior wooden doors in residential homes, hotels, villas, and upscale commercial spaces where both durability and elegant appearance are important.
Technical Specifications
| Model Number | DDBH005 |
| Brand | D&D HARDWARE |
| Material | 100% Solid Brass (C36000 grade); Lead-free for EU RoHS/California Proposition 65 |
| Size Options | 3.0'', 3.5'', 4.0'', 4.5'', 5.0'', 6.0'' (Fits door thickness 30–80mm) |
| Thickness Options | 2.0/2.5mm (lightweight doors); 3.0/3.5mm (standard doors); 4.0/4.5mm (heavy-duty doors) |
| Bearing | Two Precision-graded Ball Bearings (sealed, dust/moisture resistant) |
| Finish Options | SSS(Satin Brass), PSS(Polished Brass), PVD(Matte Black/Bronze), AB(Antique Brass), AC(Antique Copper), MB(Matte Brass) |
Product Images and Videos
Product Features & Advantages
- Dual Ball Bearing System: Silent & Effortless Performance: Two precision-graded ball bearings are sealed within the hinge barrel, reducing friction by 90% compared to non-bearing hinges. This ensures smooth, silent operation for up to 500,000+ cycles, ideal for quiet spaces like bedrooms, libraries, and hotels.
- 100% Solid Brass: Corrosion Resistance & Longevity: Made from C36000 brass, these hinges resist corrosion from moisture, salt air, and chemicals far better than plated alternatives. The dense structure develops a protective patina over time, adding character and lasting 5x longer.
- Comprehensive Size & Thickness Range: Universal Fit: With 6 sizes and 6 thicknesses, these hinges fit 99% of interior and light-exterior doors—from small cabinets to heavy commercial entryways—simplifying inventory and specification.
- Premium Finishes for Design Cohesion: A wide range of finishes (PSS, SSS, PVD, AB, AC, MB) allows perfect matching with D&D’s door knobs, cabinet handles, and other hardware for a cohesive aesthetic in any style.
- Seamless Integration with Door Systems: Designed to work harmoniously with D&D’s complete hardware ecosystem, including door closers, thumbturn bathroom locks, and panic hardware, ensuring synchronized operation and visual consistency.
Application Scenarios
- Villa Bedrooms & Living Rooms: In high-end villas, the DDBH005 enhances interior doors with quiet, fluid movement that supports a premium living experience. The ball bearing mechanism minimizes friction and noise, making it ideal for bedrooms and shared living areas where comfort and privacy matter most. Decorative finishes complement wood doors and interior décor, reinforcing a sense of quality and craftsmanship.
- Retail Boutiques: For retail boutiques, where first impressions are critical, the hinge supports smooth and quiet door operation while enhancing visual appeal. High-quality finishes help reinforce brand image, and robust construction ensures reliability despite frequent customer traffic.
- Office Conference Rooms: In office conference rooms, the DDBH005 delivers silent, controlled door operation that maintains a professional environment. Its durability handles repeated use throughout the day, and its compatibility with standard door hardware systems allows easy integration with door closers and access control solutions.
Certifications and Compliance
- ISO 9001 Quality Management: Manufactured under ISO 9001:2015-certified processes with strict quality control from material sourcing to final assembly.
- SGS Factory Audited: Produced in an SGS-verified facility with ethical practices, traceable brass sourcing, and high production capacity for consistent bulk order quality.
Customization Options
- Size & Thickness Modifications: Custom dimensions available for specialized applications (e.g., mini cabinets, oversized doors) with engineering support and 3D models.
- Material Upgrades: Options include high-copper brass for faster patina or naval brass (C46400) for superior saltwater corrosion resistance in coastal properties.
- Finish Customization: Match specific RAL/Pantone colors, add custom engraving (logos, project IDs), or apply anti-tarnish coatings for high-visibility areas.
- Functional Enhancements: Upgrades like sealed bearings with food-grade lubricant, removable pivot pins, or security screws to meet specific project needs.
- OEM/ODM Services: Full private-label services including branded packaging, custom installation templates, and bundled hardware solutions (hinges + door handles + locks).
Production Process & Quality Control
- Brass Sourcing & Purification: Select and refine C36000 brass ingots, testing copper content via XRF to ensure purity and compliance.
- Precision Stamping & Forming: Use automated stamping presses to form hinge leaves and knuckles with high tolerance for perfect bearing fit.
- Ball Bearing Assembly & Sealing: Assemble and lubricate dual ball bearings, then seal them with stainless steel caps to block dust and moisture.
- Surface Finishing: Apply specified finishes through multi-stage polishing, chemical patination, or vacuum PVD coating for durability and aesthetics.
- Final Quality Testing: Conduct 100% visual inspection, plus rigorous sample testing for load capacity, cycle durability, noise levels, and corrosion resistance.
- Packaging: Pack hinges in anti-tarnish bags within labeled boxes, including screws and instructions. Bulk orders include desiccants for shipping protection.
Step-by-Step Installation Guide
- Gather Tools & Hardware: Prepare drill, torque wrench, measuring tape, level, pencil, and DDBH005 hinges. Include D&D’s door handle and door lockset for a complete system.
- Mark Hinge Positions: Use a level to mark positions on door edge and frame (top hinge 150mm from top, bottom 200mm from bottom). Ensure marks are collinear to prevent sagging and bearing strain.
- Pre-Drill Pilot Holes & Mortises: Drill 3mm pilot holes to prevent splitting. For full-mortise installation, chisel recesses to match hinge thickness for a flush fit.
- Secure Hinges & Test Operation: Attach hinges with provided brass screws, tightening to 12–15 ft-lbs torque. Hang the door and test for smooth, silent swinging.
- Adjust for Uniform Clearance: Ensure a 2–3mm gap around the door. Use shims to adjust if binding occurs, then re-test operation.
- Finalize with Complementary Hardware: Install D&D’s door handle, deadbolt lock, and optional door closer or magnetic door stop. Test the full system.
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Main Product:
door hinges,
door locks,
panic exit device,
door closers,
door handles ,
door hardware