Bernardo 3-jaw cast iron chuck DK11-160 is a lathe chuck for professional use, weighing 8.8 kg. Krollit, official Bernardo distributor since 2007.
- D - Chuck size: 160
- D1: 125 mm
- D2: 140 mm
- D3: 45 mm
- h: 94 mm
- H1: 65 mm
Who uses the DK11-160 3-jaw cast iron chuck and what for
Mechanical workshops and artisan turners use the DK11-160 3-jaw cast iron chuck as a clamping accessory on metal lathes, ensuring secure clamping and centering of the workpiece in turning, drilling, and grooving operations.
Its place in the Bernardo range
The Bernardo DK11-160 3-jaw cast iron chuck is part of the Bernardo lathe chuck 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 within 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 DK11-160 3-jaw cast iron chuck for
The dk11-160 3-jaw cast iron chuck is recommended for the following professional profiles:
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Mechanical workshops and artisan turners: secure clamping of round or hexagonal workpieces on metal lathes for turning, drilling, and grooving operations.
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Users with a Bernardo lathe with a compatible flange: original replacement or upgrade for Bernardo range lathes (profi, hobby, etc.) with a2 mounting according to DIN 55029.
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Irregular or non-round workpieces: for non-symmetrically centered workpieces, consider 4-jaw independent chucks or universal platforms.
Technical specifications
| D1 |
125 mm |
| D2 |
140 mm |
| D3 |
45 mm |
| h |
94 mm |
| H1 |
65 mm |
| h |
5 mm |
| Mounting screws |
6 x M10 |
| D - Chuck size |
160 |
| Max. speed |
2500 rpm |
| Approx. weight |
8.8 kg |
Frequently asked questions
When to use a 3-jaw chuck?
Self-centering 3-jaw chucks are for cylindrical, hexagonal, and 3-6-9-12 sided workpieces. The jaws move together with a single key (self-centering).
It is the most common chuck on lathes: quick clamping of symmetrical workpieces, typical concentricity accuracy of 0.03-0.1 mm depending on the body material (steel = better accuracy, cast iron = standard).
Why a cast iron chuck?
Cast iron chucks (DK Camlock or PS series) offer excellent thermal dissipation and robust construction at a lower cost compared to steel.
Cast iron: typical concentricity accuracy 0.03-0.1 mm. The DK Camlock series has a quick-change mount, the PS is the basic model. High service life in standard machining.
What workpieces is the Ø 160 mm diameter suitable for?
Suitable for small-medium workpieces (max Ø ~140 mm): bench lathes and artisan workshops.
The nominal diameter of the chuck indicates the maximum size of the body, not that of the workable workpiece. Clamping capacity depends on the jaw opening (typically 60-70% of the nominal Ø).
How do I check compatibility with my lathe?
Check the mounting type of the lathe spindle nose (Camlock D3-D15, or threaded M-mount) and the corresponding diameter.
On modern lathes, Camlock mounting is the most common. On older lathes, there may be a threaded (M-) or flanged mount. The lathe's technical documentation indicates the exact type.
How do you maintain chuck accuracy?
Regular cleaning of the spiral mechanism, periodic lubrication with specific chuck grease, and concentricity check every 6 months with a dial indicator.
A jaw that moves with difficulty indicates chips or rust in the mechanism: disassemble, clean, and grease. Concentricity is checked by mounting a ground bar and measuring with a dial indicator: acceptable tolerance 0.03-0.1 mm depending on the model.
