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Bernardo  |  SKU: 21-3343

TJ-PS4-250 reversible insert jaws

€298,04 (22% VAT incl.)
Soluzione business fino a 30 rate

Consegna e Spedizione

Noi di Krollit garantiamo un processo di spedizione sicuro e affidabile. Gli ordini vengono gestiti con la massima cura e tracciabilità fino alla consegna.

Per spedizioni internazionali, ti invitiamo a inviare la richiesta tramite l’apposito form di contatto.

Al momento della consegna, firma sempre la bolla con la dicitura “con riserva di controllo”, così da permettere la corretta gestione di eventuali irregolarità o difformità del prodotto.

Il nostro obiettivo è assicurarti un servizio puntuale e un’esperienza d’acquisto senza pensieri.

Descrizione

Reversible top jaws Ø 250 mm for PS type 4-jaw chucks. Available from Krollit, official Bernardo distributor since 2007.

Technical Specifications

Chuck size

250 mm

M

27 mm

h

39.7 mm

G

19.04 mm

L

14.5 mm

J

14 mm

K

20 mm

d

12.71 mm

E

4 mm

F

3.2 mm

R

22 mm

N

13.5 mm

C

53 mm

B

32.5 mm

A

95 mm

O

29 mm

P

64 mm

Logistics

Original spare parts available with 3-5 business day shipping. Customer support available in Italian.

Frequently Asked Questions

Reversible top jaws Ø 250 mm — what do "top jaw" and "reversible" mean?

"Top jaw" indicates that the jaw consists of two parts: the base body (hard, made of hardened steel) that moves in the chuck's guides, and the upper insert (the actual jaw, made of soft or hardened steel) screwed onto the base body. The inserts can be replaced separately when worn without changing the base body. "Reversible" indicates that the same insert can be mounted in two opposite orientations — for internal or external gripping — without changing the jaw.

For Ø 250 mm — what is the clamping diameter range with these jaws?

The reversible top jaws for a Ø 250 mm chuck clamp workpieces within a diameter range that depends on the jaw stroke and the mounted configuration. As a general reference, the jaws cover a range of approximately ±30–40% of the nominal chuck diameter. For very small diameters (workpieces <Ø 20 mm on a Ø 250 mm chuck), consider smaller jaws or workpiece clamps. Customer support available in Italian.

Can the top inserts be replaced separately?

Yes — this is the main advantage of the top jaw construction. When the upper inserts are worn or when you want to mount inserts made of a different material (e.g., soft inserts for delicate workpieces), you remove the fastening screws and replace only the inserts without having to buy the complete set of jaws. Replacement inserts are available separately. Customer support available in Italian.

Delivery times?

Original spare parts available with 3-5 business day shipping. Customer support available in Italian.

Sicurezza del prodotto

Recensioni

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