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Bernardo  |  SKU: 21-3223

SJ-PS4-250 Soft One-Piece Brake Pads

€298,04 (22% VAT incl.)
Business solution up to 30 installments

Delivery and Shipping

At Krollit, we guarantee a safe and reliable shipping process. Orders are handled with the utmost care and traceability until delivery.

For international shipments, please send your request via the dedicated contact form.

Upon delivery, always sign the delivery note with the words “subject to inspection” to allow for proper handling of any irregularities or discrepancies in the product.

Our goal is to ensure you receive prompt service and a worry-free shopping experience.

Description

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

technical specifications

Chuck size

250 mm

A

105 mm

B

28 mm

C

63 mm

d

11 mm

E

12 mm

Logistics

Original spare parts available with 3–5 working days shipping. Customer support available in Italian.

Frequently asked questions

Soft monobloc jaws Ø 250 mm — when are they used instead of hardened jaws?

Soft jaws (made of unhardened mild steel) are used when the workpiece cannot be scratched or deformed by the jaw — finished surfaces, soft materials (aluminum, copper, plastic), thin-walled workpieces. Before use, soft jaws must be machined (bored) in situ on the chuck to compensate for mounting tolerances and achieve maximum concentricity — a soft jaw machined in situ exceeds any standard hardened jaw in precision.

Are these Ø 250 mm jaws compatible with my chuck?

PS3/PS4 jaws are designed for 3 or 4-jaw chucks with PS-type mounting — check compatibility with your chuck before purchasing. The Ø 250 mm diameter indicates the chuck size for which the jaws are designed. Also check the number of fixing bolts on your chuck.

Can monobloc jaws be reversed for external gripping?

No — monobloc jaws are not reversible. For external gripping (clamping from the outside of the workpiece), reversible top jaws from the TJ or DTJ series are needed. Monobloc jaws only exist in an internal gripping version or an external gripping version — check the type before purchasing.

Delivery times?

Original spare parts available with 3–5 working days shipping. Customer support available in Italian.

Product safety

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