Ives Steel 3 Knuckle Plain Bearing Full Mortise Hinge with Square Corners

Ives Steel 3 Knuckle Plain Bearing Full Mortise Hinge with Square Corners

Professional Full Mortise Hinge for Standard Weight Doors

The Ives Steel 3 Knuckle Plain Bearing Full Mortise Hinge delivers reliable performance for standard weight doors in low to medium frequency applications. This Grade 2 hinge features steel construction with plain bearing design and 3 knuckle configuration for dependable operation. Certified to exceed ANSI/BHMA A156.1 performance standards and meets ANSI/BHMA 156.7 template dimensions, this hinge comes complete with fasteners for both hollow metal and wood door installations.

Professional Features & Benefits

• Grade 2 Performance Rating: Tested to 1,500,000 cycles for reliable long-term performance in medium-duty commercial applications.
• Steel Construction: Durable steel substrate provides excellent strength and longevity for standard weight door applications.
• Plain Bearing Design: Engineered specifically for standard weight doors and low to medium frequency usage applications.
• 3 Knuckle Configuration: Three knuckle design provides proper support and smooth operation for standard door installations.
• Complete Fastener Package: Includes wood and machine screws (12-24 x 1/2" UFPHMS, 12 x 1-1/4" FPHWS, 10-24 x 1/2" UFPHMS, 10 x 1" FPHWS for 3.5x3.5 hinge size).
• ANSI/BHMA Certified: Exceeds ANSI/BHMA A156.1 performance standards and meets A156.7 template dimensions for code compliance.
• Optional Enhancements Available: Hospital tip (HT), non-removable pin (NRP), security stud (SH), rounded corners (RC-1/4, RC-5/8), and security fasteners (SEC) for specialized applications.
• UL Classification: UL Classified for windstorm rated assemblies (R37965) ensuring performance in demanding conditions.

Technical Specifications

• ANSI/BHMA: ANSI/BHMA A156.1
• Bearing Type: Plain Bearing
• Commercial/Residential: Commercial
• Corner Style: Square Corners
• Department: Door Hardware
• Duty Level: Medium Duty
• Fasteners: Wood and Machine Screws
• Grade: Grade 2
• Knuckles: 3
• Product Category: Door Hinges and Pivots
• Product Function: Plain Bearing
• Product Group: Door Hinges and Pivots
• Product Model: 3PB1
• Product Subgroup: Full Mortise Hinges
• Product Substrate: Steel
• Product Type: Hinges
• Subcategory: Hinges and Pivots

Installation & Operation

1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

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 Ives Quality?

Ives architectural hinges deliver professional-grade reliability with steel construction tested to exceed ANSI/BHMA A156.1 performance standards and rated for 1,500,000 cycles. UL Classified for windstorm rated assemblies and complete with installation fasteners for immediate use. Engineered for demanding commercial applications where dependable performance and code compliance are essential.