The Bernardo FLD-400/D11 chuck flange is a professional machine tool accessory available from Krollit, an official Bernardo distributor since 2007.
- Flange size: 400/D11
- Diameter: 400 mm
- Taper: 11
- A: 400 mm
- B: 47 mm
- Through bore: 192.8 mm
Who uses the FLD-400/D11 chuck flange and for what
Users who own a compatible machine install the FLD-400/D11 chuck flange as an original accessory to extend functionalities or replace worn components.
Its place in the Bernardo range
The Bernardo FLD-400/D11 chuck flange is part of Bernardo's range of machine tool accessories, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performance levels: to choose the right machine for your use case, you can consult the Bernardo catalogue on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Shipping in 3-5 business days from Krollit warehouse for spare parts and accessories. Customer support in Italian available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.
Who is the FLD-400/D11 chuck flange for
The FLD-400/D11 chuck flange is recommended for the following professional profiles:
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Users who own a compatible machine: original accessory to extend the functionalities of the indicated machine.
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Workshops with specific setup requirements: component for particular machining operations or increased precision.
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Compatibility with machines of other brands or models: check machine model and specifications before purchase.
Technical specifications
| Flange size |
400/D11 |
| Diameter |
400 mm |
| Taper |
11 |
| A |
400 mm |
| B |
47 mm |
| Through bore |
192.8 mm |
Frequently asked questions
What is the purpose of the FLD 400 - D11 chuck flange?
It is a flange for mounting chucks on metal lathes, with a diameter of Ø 400 mm and a D11 mounting.
It allows for the secure attachment of the chuck to the lathe spindle nose according to FLD standards (DIN 55027 central drawbar mounting). The Ø 400 mm diameter corresponds to the nominal diameter of the compatible chuck.
What is the difference between FL and FLD series?
The FL (Ø flanges) has an external mounting according to DIN 55029. The FLD has a central drawbar mounting according to DIN 55027 (quicker to dismantle).
This model is FLD: for maximum compatibility with the lathe, check the standard of the chuck nose. Most professional Bernardo metal lathes use the FLD attachment.
What does the D11 mounting indicate?
The D11 (Camlock) code indicates the quick-release system: the number (e.g. D3, D4, D5, D6, D8, D11, D15) identifies the standard mounting size.
For correct compatibility, check the mounting of your lathe: D3-D5 for small/medium lathes, D6-D8 for medium-large lathes, D11-D15 for heavy industrial lathes.
Is it a genuine Bernardo spare part?
Yes, Krollit has been an official Bernardo distributor since 2007 and supplies only genuine flanges for Bernardo lathes and DIN compatible ones.
Genuine flanges comply with the machining tolerances required by the DIN standard to ensure concentricity and balance of the chuck. Do not use non-genuine flanges for precision machining.
How is the flange mounted on the lathe?
Mounting requires disassembling the existing chuck, thoroughly cleaning the lathe spindle nose, applying a light layer of oil, and fastening with the torque specified in the manual.
For lathes with a Camlock system (DLD), the cams should be closed by hand until they reach the reference point (usually a notch or line); do not force with tools. Krollit provides technical documentation and phone support for mounting.
