FSB AFL®
Adaptively Flush-Mounted Bearing

A new approach to flush-fitted installation

FSB AFL® is a rosette solution just 3.5 mm in height, designed for either flush or subtly surface-mounted installation. Thanks to a patented adapter system, it pairs seamlessly with all FSB lever handle models and is available in two versions: standard and lockable.

Technical Precision, Streamlined to the Essentials.

  • Minimalist aesthetics
    through flush-mounted integration.

  • Fast installation
    with clip-on system and preassembled set.

  • Fire-rated
    to DIN EN 1906 and und EN 1634-1.

All variants at a glance.

  • FSB AFL® Standard
    Minimalist rose, compatible with standard locks. Ideal for office, hotel, and residential doors.

  • FSB AFL® Lockable
    Rose with concealed coupling mechanism, red indicator, and emergency release, ideal for restrooms, meeting-, and patient rooms.

  • Flush-mounted
    3.5 mm projection for rebated or existing doors – no special milling for the lock required; milling for the AFL® rose is necessary.

  • Surface-Mounted
    3.5 mm profile for rebated or existing doors – retrofit-friendly with no special milling required.

A cross-section of the deconstructed FSB AFL® Bearing.

Technical Precision, Streamlined to the Essentials

  • Cover rose – clip-on installation: quick, precise, concealed.

  • Direction-neutral return spring (DIN EN 1906 compliant): reliably prevents the lever from sagging.

  • Stainless steel substructure ensures high tensile strength.

  • Tested for 1 million operating cycles for standard FSB AFL®.

  • Continuous spindle for door thicknesses 39–109 mm.

  • Fire and smoke protection in accordance with EN 1634-1.

Configure FSB AFL® Products

Open

Closed

Integrated Locking Mechanism (Optional)

On the FSB AFL® lockable variant, the turn-lock mechanism is concealed within the rosette. A red status indicator signals “occupied.” Emergency release is possible via coin-turn, no additional privacy rosette required.

System and Compatibility

  • Our patented adapter technology connects AFL® with all FSB design lines.

  • Compatible with both flush and rebated doors.

  • A blank rosette elegantly conceals existing drill holes, ideal for retrofit applications.

Download the Brochure now and learn more about FSB AFL®.

FSB AFL® covers a wide range of applications.

Use cases

  • Office and administrative buildings: high traffic and a clear design language.

  • Hotels & serviced apartments: understated aesthetics.

  • Healthcare (hospitals, clinics, nursing homes): hygienic surface and integrated emergency release.

  • Premium residential: minimalist look and tactile comfort.

  • Public and cultural buildings: durable engineering with fire and smoke protection compliance.

Technical specifications

  • Rose height: 3.5 mm

  • Rotation angle: 45°

  • Door thicknesses: 39 - 109 mm

  • Materials: aluminium, Aluminium Pure, stainless steel

  • Mounting: concealed clip-on system

  • Standards: DIN EN 1906 (Category 4) | Fire & smoke protection T30

FSB 1267 with flush-fitted FSB AFL® rose in color LC 32020 bleu outremer.

Now in Color: FSB AFL® in Les Couleurs® Le Corbusier®

The FSB AFL® rose is now also available in the Les Couleurs® Le Corbusier® color range. Combined with the iconic model FSB 1267, it enables cohesive door solutions—technically refined and architecturally aligned. Choose from 63 subtly graded architectural tones for detail-driven design.

Learn more about FSB + Les Couleurs® Le Corbusier®

Your next step with so many options?

We’re here to help you choose the right solution for any building or project requirement.

Ralf Frischemeier

Ralf Frischemeier

Director International Sales

ralf.frischemeier@fsb.de +49 5272 608213

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