The Bernardo 3-jaw cast iron chuck DK11-160/D5 is a professional lathe chuck with a diameter of 160 mm and a weight of 9 kg. Krollit, official Bernardo distributor since 2007.
- Chuck size: 160/D5
- D - Diameter: 160 mm
- Taper: 5
- D1 (max.): 82.578 mm
- D2: 104.8 mm
- D3: 40 mm
Who uses the DK11-160/D5 3-jaw cast iron chuck and for what purpose
Mechanical workshops and artisan turners use the DK11-160/D5 3-jaw cast iron chuck as a clamping accessory on metal lathes, ensuring secure clamping and centering of the workpiece during turning, drilling, and grooving operations.
Its place in the Bernardo range
The Bernardo DK11-160/D5 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 performance levels: 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/D5 3-jaw cast iron chuck for?
The DK11-160/D5 3-jaw cast iron chuck is recommended for the following professional profiles:
-
Mechanical workshops and artisan turners: secure clamping of round or hexagonal workpieces on a metal lathe during turning, drilling, and grooving operations.
-
Users with a compatible Bernardo flanged lathe: original replacement or upgrade for Bernardo lathes (profi, hobby, etc.) with A2 mount compliant with DIN 55029.
-
Irregular or non-round workpieces: for workpieces not symmetrically centered, consider 4-jaw independent chucks or universal platforms.
Technical specifications
| Chuck size |
160/D5 |
| D - Diameter |
160 mm |
| Taper |
5 |
| D1 (max.) |
82.578 mm |
| D2 |
104.8 mm |
| D3 |
40 mm |
| H1 |
74 mm |
| Max. speed |
2500 rpm |
| Weight approx. |
9 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 lathe chuck: quick clamping of symmetrical workpieces, typical concentricity precision 0.03-0.1 mm depending on the body material (steel = better precision, cast iron = standard).
Why a cast iron chuck?
Cast iron chucks (DK Camlock or PS series) offer excellent heat dissipation and robust construction at a lower cost compared to steel.
Cast iron: typical concentricity precision 0.03-0.1 mm. The DK Camlock series has a quick-change mount, while the PS is the basic model. High service life in standard operations.
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 chuck diameter indicates the maximum body size, not the machinable workpiece size. Clamping capacity depends on the jaw opening (typically 60-70% of the nominal Ø).
What does D5 mounting indicate?
The D5 code (Camlock according to DIN 55029) identifies the size of the lathe spindle nose: D3-D5 for small lathes, D6-D8 for medium, D11-D15 for industrial.
Check the mounting of your lathe before purchasing: the interface flange must exactly match the code. Camlock = quick closing with cams, disassembly in 30 seconds without tools.
How is chuck precision maintained?
Regular cleaning of the spiral mechanism, periodic lubrication with specific chuck grease, 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.
