BEST CB248 Steel Full Mortise ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$62.20
BEST BEST CB248 Steel Full Mortise Concealed Bearing Standard Weight Swing Clear Hinge For Square Edge Doors BEST-CB248

BEST CB248 Steel Full Mortise Concealed Bearing Swing Clear Hinge for Square Edge Doors

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Model: BEST-CB248-652-4.5
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$62.20
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BEST CB248 Steel Full Mortise Concealed Bearing Swing Clear Hinge for Square Edge Doors

Professional Swing Clear Hinge Solution for Commercial Applications

The BEST CB248 Steel Full Mortise Concealed Bearing Swing Clear Hinge is engineered for square edge doors, delivering reliable and smooth operation in commercial environments. This medium-duty hinge features durable steel construction with a concealed LifeSpan bearing mechanism that eliminates maintenance requirements. The swing clear design allows doors to open completely clear of the opening when opened 90 degrees, enhancing accessibility and passage clearance.

Professional Features & Benefits

  • Swing Clear Operation: Designed to swing doors completely clear of the opening when opened 90 degrees for enhanced accessibility and unobstructed passage.
  • Concealed LifeSpan Bearing: Maintenance-free concealed bearing system requires no oil or grease, reducing friction for effortless door operation.
  • Durable Steel Construction: Heavy-duty steel construction ensures long-lasting performance in demanding commercial applications.
  • Versatile Installation: Reversible flush tips and pins make it ideal for both remodeling and new construction projects.
  • Square Edge Door Compatibility: Specifically designed for full mortise application on square edge doors with 5-knuckle configuration.
  • Hospital Tip Option: Available with hospital tips (HT) for specialized healthcare facility requirements.
  • LifeSpan Limited Lifetime Warranty: Backed by manufacturer’s limited lifetime warranty for added confidence and protection.
  • Multiple Finish Options: Available in 600 (Primed for Painting) and 652 (Satin chromium plated) finishes to match various architectural requirements.

Technical Specifications

  • Bearing Type: Concealed Bearing
  • Commercial/Residential: Commercial
  • Corner Style: Square Corners
  • Department: Door Hardware
  • Duty Level: Medium Duty
  • Hinge Type: Full Mortise
  • Knuckles: 5
  • Product Category: Door Hinges and Pivots
  • Product Group: Door Hinges and Pivots
  • Product Model: CB248
  • Product Subgroup: Surface and Mortise Hinges
  • Product Type: Full Mortise Hinges
  • Series: Swing Clear Hinges
  • Subcategory: Hinges

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

Swing Clear Design Benefits

The swing clear feature provides ample clearance when the door is fully opened, making it easier for people to pass through and enhancing accessibility compliance. This design is particularly beneficial in healthcare facilities, educational institutions, and other commercial applications where unobstructed passage is essential for safety and accessibility requirements.

Why Choose BEST Quality?

BEST CB248 hinges deliver professional-grade reliability with durable steel construction and maintenance-free concealed LifeSpan bearing technology. The LifeSpan limited lifetime warranty provides added confidence for demanding commercial applications. Engineered for commercial environments where dependable performance and accessibility compliance are essential.

Product Specs

Subcategory:
Hinges
Series:
Swing Clear Hinges
Hinge Type:
Full Mortise
Knuckles:
5
Bearing Type:
Concealed Bearing
Corner Style:
Square Corners
Product Group:
Door Hinges and Pivots
Product Subgroup:
Surface and Mortise Hinges
Product Type:
Full Mortise Hinges
Duty Level:
Medium Duty
Commercial/Residential:
Commercial
Product Model:
CB248
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

BEST BEST-CB248-652-4.5 – Frequently Asked Questions

1) What does a swing clear hinge actually do, and when do I need one instead of a standard butt hinge?
A swing clear hinge like the BEST CB248 carries the door leaf completely out of the opening when the door is swung to 90 degrees, so the door face and the hinge no longer eat into the clear width. On a standard full mortise butt hinge, the open door still occupies roughly its own thickness of the opening. Use swing clear where clear passage width is tight, gurneys or wheelchairs move through, or an existing opening is a couple of inches short of the clearance you need. If clear width isn't the problem, a conventional full mortise hinge is the simpler choice.
2) Will the BEST CB248 work on a beveled edge door?
No. The CB248 is built for square edge doors only. Swing clear hinges are cut for a specific door edge profile, so a beveled edge door needs the beveled edge version of the hinge, not this one. Check the door edge before ordering, since hollow metal doors are commonly square edge and wood doors are often beveled.
3) Is the CB248 heavy enough for a high traffic door, like a hospital corridor or a school entrance?
The CB248 is a medium duty (standard weight) steel hinge with a concealed bearing. That suits normal commercial interior traffic, offices, patient rooms, classrooms, corridors with typical door weights. For heavy or oversized doors, or doors that see constant abuse, step up to a heavy weight hinge; the Dormakaba CB199 is a heavy duty full mortise concealed bearing hinge, and the McKinney TCA3386 is a heavy weight square corner 5 knuckle option.
4) Do I need to order left hand and right hand CB248 hinges separately?
No. The CB248 has reversible flush tips and pins, so the same hinge works on either hand. That keeps your stock simple across a building and means you don't have to confirm handing on every opening before ordering, which is why it works for both retrofit and new construction.
5) Can I swap a standard full mortise hinge for a CB248 swing clear without recutting the frame?
Swing clear hinges are not a straight drop-in for a standard butt hinge. The leaf geometry is different, so the door mortise and the way the leaf sits relative to the door face change even when the frame leaf lines up. Plan on new door prep, and use the BEST hinge templates and installation instructions to lay out the hole locations before you cut. If you just need a like-for-like replacement of a conventional hinge, the Stanley Security CB1960R is a medium duty full mortise concealed bearing hinge in the same weight class.
6) What is the closest alternative to the BEST CB248 swing clear hinge from another brand?
The Hager 1260 is a full mortise swing clear hinge with a 5-knuckle design, which is the same opening concept as the BEST CB248 steel full mortise swing clear hinge. The difference is in the bearing and weight class: the CB248 uses a concealed bearing and is rated medium duty, while the Hager 1260 uses a plain bearing and is rated heavy duty. If the opening is a high-traffic or heavier door leaf, the heavy duty Hager 1260 is the one to look at; if you want a maintenance-free concealed bearing, stay with the CB248.
7) Can I use a standard ball bearing hinge like the Don-Jo BB74545 instead of the BEST CB248?
Not if you need the clearance. The Don-Jo BB74545 is a standard duty full mortise ball bearing hinge, 4-1/2 inch by 4-1/2 inch, steel, square corner, 5-knuckle - a conventional butt hinge that leaves the door leaf sitting in the opening when the door is open. The BEST CB248 is a swing clear hinge, which carries the door completely clear of the opening at 90 degrees so the full clear width is available for passage. On an ADA-sensitive corridor or a healthcare opening where clear width was the reason the swing clear was specified, a standard butt hinge such as the BB74545 will not give you that width back. For a plain door where clearance is not the issue, the BB74545 is a straightforward butt hinge.
8) What size and finishes does the BEST CB248 swing clear hinge come in?
The CB248 is a 4-1/2 inch hinge, offered in 600 primed for painting and 652 satin chromium plated steel. The 600 finish is meant to be field painted to match a frame or door color, which is the usual pick when you're painting the whole opening; 652 is the standard satin chrome look that matches most commercial lever and closer finishes.
9) I need swing clear hinges for a hospital. Can I get hospital tips?
Yes, the CB248 is offered with hospital tips (HT). Hospital tips slope the knuckle ends so there's no flat ledge for IV lines, bedding, or clothing to catch on, which is why healthcare facilities and behavioral health areas specify them. Call out the HT option when you order; the standard hinge ships with flush tips instead.
10) What are my options if I need a swing clear hinge for a heavier door than the CB248 handles?
For a heavier leaf, the Hager 1260 is a full mortise swing clear hinge in heavy duty with a 5 knuckle plain bearing design. The tradeoff is the bearing type: the CB248 runs a maintenance-free concealed bearing, while the 1260 is plain bearing. Pick on door weight first, then bearing.
11) Is the CB248 steel or stainless steel, and does that matter for a wet or exterior opening?
The CB248 is steel, not stainless. Steel is fine for interior commercial openings, and the 600 primed version is made to be painted. For pool rooms, kitchens, coastal exteriors, or wash-down areas where corrosion is the concern, go stainless: the Don-Jo BB94545 is a 4-1/2 by 4-1/2 inch stainless steel full mortise ball bearing hinge with square corners.
12) Would a wide throw hinge do the same job as the BEST CB248 swing clear?
They solve related problems differently. The Hager WTBB1168 is a 4-1/2 inch by 6 inch full mortise ball bearing wide throw hinge, heavy weight, with 5 knuckles - the extra leaf width throws the door away from the frame to clear trim, casing, or a deep reveal. The BEST CB248 swing clear hinge instead carries the door clear of the opening itself at 90 degrees to recover clear passage width. If the obstruction is projecting trim, the wide throw WTBB1168 is the fix; if the obstruction is the door leaf reducing clear width in the opening, use the CB248.
13) I need a through-wire hinge for an electrified opening - does the BEST CB248 do that?
For power transfer through the hinge, look at the ACSI 5BB1, a 5-knuckle ball bearing full mortise hinge, 4-1/2 inch by 4-1/2 inch, with concealed electric through-wire (4 wire, 28 gauge), from the 1100 Series. The BEST CB248 is a mechanical steel full mortise swing clear hinge with a concealed bearing and no electrical provision. If the opening needs both clear passage width and power transfer, plan on the electrified hinge in one position and confirm the rest of the hinge schedule with your spec.
14) My existing hinges are 4-1/2 by 4 inch - is the BEST CB248 a drop-in?
Check the leaf height before ordering. The BEST CB248 is offered in a 4.5 inch size, while a hinge such as the Don-Jo BB74540 is a 4-1/2 inch by 4 inch standard duty full mortise ball bearing hinge - a shorter leaf that will not fill the same mortise pocket. If the door and frame are prepped for 4-1/2 by 4, the BB74540 matches that prep; going to the CB248 means confirming the mortise depth and leaf height against the existing cutout, and a swing clear hinge also changes how the door sits relative to the frame.
15) Can I use a residential hinge like the Hager 1541 on the same door as a BEST CB248?
The Hager 1541 is a full mortise plain bearing residential hinge with stainless steel construction and a 5 knuckle design, and it is built for residential service. The BEST CB248 is rated for commercial use with a concealed bearing and medium duty rating. On a commercial corridor, healthcare, or school opening where the CB248 was specified, the 1541 is not an equivalent substitute; it suits residential doors instead.
16) I need satin chrome to match the other hinges in the building - what are my options?
The BEST CB248 is available in 652 satin chrome over steel as well as 600 primed for painting. If you need satin chrome on conventional butt hinges elsewhere in the same building, the Don-Jo BB84545 is a 4-1/2 inch by 4-1/2 inch brass full mortise ball bearing hinge in satin chrome and the Don-Jo BB74540 is a 4-1/2 inch by 4 inch full mortise ball bearing hinge in satin chrome, both standard duty. That lets you keep the swing clear CB248 on the openings that need clear passage width and match the finish on the rest of the schedule.
How fast can I get the BEST BEST-CB248-652-4.5 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the BEST BEST-CB248-652-4.5 come with a warranty?
Absolutely. The BEST BEST-CB248-652-4.5 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the BEST BEST-CB248-652-4.5?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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