Ives Center Hung Pivot Set 500lb Capacity with Bottom Jamb Mount
Heavy-Duty Center Hung Pivot Solution for Commercial Applications
The Ives 7255J Center Hung Pivot Set delivers professional-grade door support for heavy commercial doors up to 500 pounds. This complete pivot system features a top header mount pivot and bottom jamb mount pivot designed for doors with 1-3/4" minimum thickness. The precision-engineered pivot set includes positive locking vertical adjustment with 3/16" range and adjustable floor clearance from 3/16" to 3/4", certified to ANSI/BHMA A156.4 Grade 1 standards with UL 10C 20-minute fire rating approval.
Professional Features & Benefits
- Heavy-Duty Load Capacity: Maximum door load of 500 pounds with structural weight distribution through floor and frame for reduced stress on door frame.
- Door Compatibility: Recommended for doors with 1-3/4" minimum thickness, not recommended for doors larger than 4'0" X 8'0" for optimal performance.
- Precision Adjustment System: Positive locking vertical adjustment mechanism with 3/16" range allows precise door positioning and load balancing during installation.
- Flexible Floor Clearance: Adjustable floor to door clearance from 3/16" to 3/4" accommodates various installation requirements and floor conditions.
- Easy Installation Design: Tilt-on bearing and bearing pin system simplifies installation process with non-handed configuration for universal application.
- Fire-Rated Construction: UL 10C tested and approved for 20-minute fire rating with brass construction providing superior corrosion resistance.
- Complete Pivot Set: Includes 7255J Top (header mount) and 7255J Btm (jamb mount) components for complete door support system.
- Grade 1 Certification: ANSI/BHMA A156.4 Grade 1 certified for heavy-duty commercial applications with precision bearings for smooth operation.
Technical Specifications
- ANSI/BHMA: ANSI/BHMA A156.4 C07032
- Application: Standard Door
- Commercial/Residential: Commercial
- Department: Door Hardware
- Door Hand Direction: Non-Handed
- Door Weight: Up to 500 lbs
- Duty Level: Heavy Duty
- Electronic: No
- Fire Rated Time: 20 minutes
- Fire Rating: Yes
- 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 Model: 7255J
- Product Subgroup: Pivots and Pivot Sets
- Product Substrate: Brass
- Product Type: Pivots - Center Hung
- Subcategory: Hinges and Pivots
Installation & Operation
- Review manufacturer specifications and verify door preparation requirements including door thickness of 1-3/4" minimum and maximum door size of 4'0" X 8'0".
- Use manufacturer-provided templates to mark mounting hole locations accurately on door header and jamb surfaces for top and bottom pivot placement.
- Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions for both header mount and jamb mount components.
- Install the 7255J Top pivot in header mount position and 7255J Btm pivot in jamb mount position using tilt-on bearing and bearing pin system.
- Adjust floor to door clearance between 3/16" to 3/4" and utilize positive locking vertical adjustment mechanism with 3/16" range for proper door positioning and load balancing.
- Test pivot operation to verify smooth door movement and proper weight distribution. Make final adjustments as needed and refer to manufacturer documentation for complete installation details.
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 pivot systems deliver professional-grade reliability with precision brass construction and Grade 1 certification for demanding commercial applications. The 7255J Center Hung Pivot Set features positive locking vertical adjustment and structural weight distribution design that reduces frame stress while supporting doors up to 500 pounds. UL 10C fire-rated construction with superior corrosion-resistant materials ensures dependable performance in high-traffic commercial environments where reliable door operation is essential.
Manufacturer Resources
Product Specs
- Subcategory:
- Hinges and Pivots
- Product Group:
- Door Hinges and Pivots
- Hang Type:
- Center Hung
- Product Subgroup:
- Pivots and Pivot Sets
- Product Type:
- Pivots - Center Hung
- ANSI/BHMA:
- ANSI/BHMA A156.4 C07032
- Door Weight:
- Up to 500 lbs
- Commercial/Residential:
- Commercial
- Duty Level:
- Heavy Duty
- Fire Rated Time:
- 20 minutes
- Electronic:
- No
- Pivot Type:
- Top & Bottom
- Mounting Method:
- Center Hung
- Application:
- Standard Door
- Product Attribute:
- Pivots
- Product Model:
- 7255J
- Door Hand Direction:
- Non-Handed
- Fire Rating:
- Yes
- Product Category:
- Door Hinges and Pivots
- Product Substrate:
- Brass
- Department:
- Door Hardware