Norton Rixson Heavy Duty 3/4" Offset Top Pivot with Precision Needle Bearings

Norton Rixson Heavy Duty 3/4" Offset Top Pivot with Precision Needle Bearings

Commercial-Grade Top Pivot for High-Traffic Door Applications

The Norton Rixson H180 Heavy Duty Top Pivot delivers professional-grade performance for commercial doors requiring 3/4" offset pivot systems. This precision-engineered top pivot stabilizes doors at the head while bottom pivots or floor closers carry the weight, ensuring smooth operation and tight alignment in high-traffic environments. Built with anti-friction needle bearings and heavy-gauge construction, this Grade 1 pivot supports doors up to 300 lbs with mortise installation for tamper-resistant security.

Professional Features & Benefits

• Precision 3/4" Offset Design: Matches standard offset pivot sets and floor closers with 3/4" offset from door face to pivot centerline for balanced operation.
• Heavy-Duty Grade 1 Construction: ANSI/BHMA A156.4 Grade 1 rated components engineered for high-cycle commercial environments and demanding applications.
• Anti-Friction Needle Bearings: Precision bearing pin system provides smooth, quiet rotation while maintaining door alignment over extended service life.
• 300 lb Door Capacity: Supports doors up to 300 lbs when properly paired with weight-bearing bottom pivot or floor closer systems.
• Mortise Installation: Clean, tamper-resistant mortise mounting into door top and frame header for professional appearance and security.
• Universal Door Compatibility: Works with wood, hollow metal, and aluminum doors and frames with proper reinforcement for versatile commercial applications.
• Professional Satin Chrome Finish: Durable US26D (626) satin chrome finish provides long-lasting professional appearance in commercial settings.
• 2 Year Limited Warranty: Manufacturer warranty coverage provides confidence and protection for commercial installations.

Technical Specifications

• ANSI/BHMA: ANSI/BHMA A156.4, Grade 1
• Application: Standard Door
• Commercial/Residential: Commercial
• Department: Door Hardware
• Door Hand Direction: Non-Handed
• Door Weight: Up to 300 lbs
• Duty Level: Standard Duty
• Electronic: No
• Fire Rating: No
• Grade: Grade 1
• Hang Type: Center Hung
• Mounting Method: Center Hung
• Pivot Type: Top & Bottom
• Product Attribute: Pivots
• Product Category: Door Hinges and Pivots
• Product Group: Door Hinges and Pivots
• Product Subgroup: Pivots and Pivot Sets
• Product Substrate: Steel
• Product Type: Pivot Hinges
• Series: 128 Series
• Subcategory: Center Hung
• Warranty: 2 Year Limited

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness (minimum 1-3/4"), offset dimensions, and frame header construction.
2. Use manufacturer-provided templates to mark mortise locations accurately on door top and frame header surfaces for precise alignment.
3. Prepare door and frame by cutting required mortises to specified dimensions and depth per manufacturer instructions.
4. Install pivot assembly into door top mortise and secure frame component to header using provided fasteners per manufacturer torque specifications.
5. Adjust pivot alignment for proper door clearances and smooth operation throughout the full range of motion with companion bottom pivot or floor closer.
6. Test door operation to verify smooth swing, proper alignment, and secure mounting. Refer to manufacturer documentation for complete installation details and compatibility requirements with bottom pivot systems.

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose Norton Rixson Quality?

Norton Rixson pivot hardware delivers professional-grade reliability with heavy-gauge steel construction and precision anti-friction needle bearings rated for demanding commercial applications. ANSI/BHMA Grade 1 certification ensures consistent performance in high-traffic environments, while the 2 Year Limited warranty provides added confidence. Engineered for hospitals, schools, offices, and public buildings where dependable door operation and clean aesthetics are essential.