The Bernardo Flangia chuck FL-200/D6 21-4057 is a machine tool accessory for professional use available on Krollit, an official Bernardo distributor since 2007.
- Flange size: 200/D6
- Diameter: 200 mm
- Taper: 6
- A: 203 mm
- B: 39 mm
- Passage: 103 mm
Who uses the Flangia chuck FL-200/D6 21-4057 and for what purpose?
Users who own a compatible machine install the Flangia chuck FL-200/D6 21-4057 as an original accessory to extend functionalities or replace worn components.
Its place in the Bernardo range
The Bernardo Flangia chuck FL-200/D6 21-4057 is part of the Bernardo machine tool accessories range, distributed in Italy by Krollit since 2007. The Bernardo range includes models of various categories and performances: to choose the right machine for your use case, you can consult the Bernardo catalog on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Shipping 3-5 working 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 Flangia chuck FL-200/D6 21-4057 for?
The flangia chuck fl-200/d6 21-4057 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.
-
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 purchasing.
Technical specifications
| Flange dimensions |
200/D6 |
| Diameter |
200 mm |
| Taper |
6 |
| A |
203 mm |
| B |
39 mm |
| Passage |
103 mm |
Frequently asked questions
What is the FL 200 - D6 chuck flange used for?
It is a flange for mounting chucks on metal lathes, with a diameter of Ø 200 mm and a D6 taper.
It allows for the secure attachment of the chuck to the lathe spindle nose according to FL standards (external flange DIN 55029). The Ø 200 mm diameter corresponds to the nominal diameter of the compatible chuck.
What is the difference between FL and FLD series?
The FL (Ø flange) has an external taper according to DIN 55029. The FLD has a central drawbar taper according to DIN 55027 (quicker to disassemble).
This model is FL: for maximum compatibility with the lathe, check the spindle nose standard. Most professional Bernardo metal lathes use the FL attachment.
What does the D6 taper indicate?
The D6 code (Camlock) indicates the quick-release system: the number (e.g., D3, D4, D5, D6, D8, D11, D15) identifies the standard size of the taper.
For correct compatibility, check the taper of your lathe: D3-D5 for small/medium lathes, D6-D8 for medium-large lathes, D11-D15 for heavy industrial lathes.
Is it an original Bernardo spare part?
Yes, Krollit has been an official Bernardo distributor since 2007 and exclusively supplies original flanges for Bernardo lathes and DIN compatible ones.
Original flanges comply with the machining tolerances required by the DIN standard to ensure concentricity and balance of the chuck. Do not use non-original 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 tightening with the torque indicated in the manual.
For lathes with a Camlock system (DLD), the cams should be closed by hand up to the reference (usually a notch or line); do not force with tools. Krollit provides technical documentation and telephone support for mounting.
