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Hager BB1191 4-1/2" x 4-1/2" Full Mortise - Ball Bearing Hinge, Stainless Steel or Brass with Plated Finish
The Hager BB1191 is a high-performance Full Mortise Ball Bearing Hinge engineered for environments where corrosion resistance and architectural aesthetics are the top priorities. Available in both Solid Brass and Stainless Steel (Type 304L), this non-ferrous hinge is the industry standard for coastal applications, high-moisture areas, and premium commercial office suites. Designed for 1-3/4" thick doors, the BB1191 provides a smooth, maintenance-free swing for medium-weight doors or those requiring low-to-medium frequency service.
Non-Ferrous Durability for Challenging Environments
The Hager BB1191 is specifically constructed from materials that will not rust, ensuring the structural integrity and appearance of your door hardware remain intact over time.
- Premium Material Options: Choose Stainless Steel (US32/US32D) for maximum industrial durability or Solid Brass for high-end architectural finishes like Satin Nickel, Polished Chrome, or Oil Rubbed Bronze.
- Two Ball Bearings: Equipped with precision-engineered ball bearings that distribute door weight evenly, reducing friction and preventing the common "metal-on-metal" wear that leads to door sagging.
- Stainless Steel Pins: Every BB1191 hinge is supplied with a Stainless Steel pin as standard, providing an extra layer of protection against hinge-pin binding and corrosion.
- Life-Safety Compliance: While the Stainless Steel version is UL Fire Rated, please note that hinges with a Brass base material are not permitted for use on fire-rated door openings.
Technical Specifications
| Feature | Details |
| Model | Hager BB1191 |
| Hinge Type | Full Mortise / Ball Bearing |
| Dimensions | 4-1/2" x 4-1/2" (114 mm x 114 mm) |
| Metal Thickness | .134 Gauge |
| Base Material | Non-Ferrous (Brass or Type 304L Stainless Steel) |
| Pin Material | Stainless Steel |
| ANSI Standards | A2112 (Brass) / A5112 (Stainless Steel) |
| Door Thickness | Standard 1-3/4" (44 mm) |
| Bearing Count | 2 Ball Bearings |
| Pin Style | Non-rising removable pin with button tip and plug |
Hardware & Mounting Details
| Component | Fastener Type |
| Wood Screws | 1-1/4" x 12 FPHW (Flat Phillips Head Wood) |
| Machine Screws | 1/2" 12-24 FPHM (Flat Phillips Head Machine) |
| Packaging | All standard wood and machine screws included |
Why Choose the Hager BB1191?
For architects, contractors, and facility managers, the Hager BB1191 represents a high-intent hardware investment for longevity. Its non-ferrous composition makes it the premier choice for exterior doors in coastal regions, locker rooms, high-traffic restrooms, and luxury residential projects. By utilizing the Hager 304L Stainless Steel, you ensure your facility meets the highest standards for hygienic and weather-resistant door hardware.
Ideal Applications:
- Coastal Commercial Buildings: Resisting the corrosive effects of salt air and humidity.
- Medical & Laboratory Facilities: Providing a clean, rust-proof solution for sterile environments.
- High-End Office Suites: Offering architectural continuity with premium plated finishes on solid brass.
- Hospitality & Resorts: Durable, smooth-operating hinges for guest room and corridor doors.
| General - US Finishes | US26D - Satin Chrome or US32D - Satin Stainless Steel/ 630 or US26 - Polished Chrome or US15 - Satin Nickel or US3 - Polished Brass or US4 - Satin Brass or US10 - Satin Bronze or US10B - Oil Rubbed Bronze or US32 - Polished Stainless Steel |
| Brand | Hager |
| Hinge Height | 4.5" Hi |
| Hinge Width | 4.5" Wi |
| Hinge Grade/Thickness | Standard Wt .119 to .146 |
| Hinge Type | Full Mortise |
| Hinge Options | Ball Bearing |
| Base Material | Stainless Steel, Brass |
| Hinge Corners | Square |
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