Door Axis Commercial Ball Bearing Door Hinge, Heavy Duty
Reviewed pricing, lead time, freight, and final configuration are confirmed during quote review before order release.
The Door Axis Commercial Ball Bearing Hinge carries high-frequency doors on lubricated bearing races instead of bare knuckle joints. It serves offices, multifamily corridors, and hard-used residential openings where plain hinges wear loose.
Bearing raceways between the knuckles take the vertical load of the door, so the hinge swings smoothly under weight and resists the sag that plain-bearing hinges develop in commercial duty. The fixed pin resists tampering on outswing openings. Offered in a 3-1/2 in square-radius leaf and a 4 in leaf with 5/8 in radius corners, in Satin Nickel steel or full Stainless Steel for exterior and corrosion-prone service.
Highlights
- Ball bearing knuckle rated for high-frequency commercial use
- Fixed pin resists removal on outswing doors
- Half moon 8-hole screw pattern, fasteners included
- 3-1/2 in square-radius or 4 in radius-corner leaf
- Stainless Steel option for exterior and wet exposure
- Mortise mount interchangeable with standard butt hinges
Specification Table
| Function | Ball bearing butt hinge, commercial grade |
| Leaf sizes | 3-1/2 x 3-1/2 in or 4 x 4 in |
| Bearing | Ball bearing knuckle |
| Pin | Fixed, non-removable |
| Material | Steel or Stainless Steel |
| Mounting | Mortise, fasteners included |
| Hole pattern | Half moon, 8 holes |
| Application | Interior, exterior, commercial |
| Pack | Sold per hinge |
Included Components
- One ball bearing hinge in the selected size and finish
- Matching mounting screws
Installation Notes
- Use three hinges per commercial slab up to 90 in; four on taller or heavier leaves.
- Choose Stainless Steel for exterior, coastal, or wash-down environments.
- Fixed-pin hinges install with the barrel up in either handing; confirm swing before mortising.
- Shim mortises so leaves seat flush; bearing hinges telegraph misalignment as binding.
Warranty and Support
- Commercial service coverage confirmed during quote review.
Frequently Asked Questions
When do I need ball bearing hinges?
Any opening cycling more than a typical residential door: offices, corridors, entries with closers. Closers in particular demand bearing hinges to protect the frame.
Which size carries an exterior door?
Most 1-3/4 in exterior slabs hang on the 4 in leaf, three per door. Heavier doors and doors with closers are reviewed during quoting.
Is the stainless option magnetic?
The stainless alloy used is corrosion-resistant hardware stainless; confirm alloy details during quote review if specification requires it.
Documents
- Type Door Hinge
- SKU DA-DR-HW-HNG-BB-35-SN
Download the available product documents below. If a document is not linked yet, use the SKU during quote review.
Project pricing, lead time, freight routing, and final configuration are confirmed during quote review before order release.
Support and request quote workflows stay available throughout specification and order planning.