Bernardo spindle flange FL-400/D8 is a machine tool accessory for professional use available at Krollit, official Bernardo distributor since 2007.
- Flange size: 400/D8
- Diameter: 400 mm
- Taper: 8
- A: 405 mm
- B: 45 mm
- Through-hole: 136.2 mm
Who uses the Spindle Flange FL-400/D8 and for what
Users who own the compatible machine install the Spindle Flange FL-400/D8 as an original accessory to extend functionalities or replace worn components.
Its place in the Bernardo range
Bernardo Spindle Flange FL-400/D8 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 assistance in Italian available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.
Who is the Spindle Flange FL-400/D8 for
The spindle flange FL-400/D8 is recommended for the following professional profiles:
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Users who own the compatible machine: original accessory to extend the functionalities of the indicated machine.
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Workshops with specific setup needs: component for special machining 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 |
400/D8 |
| Diameter |
400 mm |
| Taper |
8 |
| A |
405 mm |
| B |
45 mm |
| Through-hole |
136.2 mm |
Frequently Asked Questions
What is the FL 400 - D8 spindle flange used for?
It is a flange for mounting the chuck on metal lathes, with a diameter of Ø 400 mm and a D8 taper.
It allows for secure attachment of the chuck to the lathe spindle nose according to FL standards (DIN 55029 external flange taper). 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 flange) has an external taper according to DIN 55029. The FLD has a central drawbar taper according to DIN 55027 (quicker to dismantle).
This model is FL: for maximum compatibility with the lathe, check the standard of the chuck nose. Most professional Bernardo metal lathes use the FL attachment.
What does the D8 taper indicate?
The D8 (Camlock) code indicates the quick-locking 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 supplies only 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 coat of oil, and tightening with the torque specified in the manual.
For lathes with the Camlock system (DLD), the cams should be closed by hand up to the reference mark (usually a notch or line); do not force them with tools. Krollit provides technical documentation and phone support for mounting.
