Каталог Widia инструментальная оснастка - страница 1038

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Spindle Connection

The Correct Spindle Connection

and Application Guide

The Spindle Connection

Several different types of spindle connection have been developed orIn 1985, WIDIA™ (Krupp WIDIA) and Kennametal initiated a joint
optimized over the last few decades. The 7/24 ISO taper became one ofprogram to further develop the concept of taper and face contact
the most popular systems in the market. It has been successfully used ininterface and a universal quick-change system — now known as
many applications, but its accuracy and high-speed limitations prevent itKM™ and recently standardized as ISO 26622. The KM system has
from growing further due to only having one ring of contact around thea very strong design, utilizing three rings of contact, the flange face,
gage diameter/uppermost cone. The recent combination of face contactand lower as well as upper ring of contact of the cone. The polygonal
with 7/24 solid taper provides higher accuracy in the Z-axis direction, buttaper-face connection, known as PSC, is now also standardized as
this also presents some disadvantages, namely the loss in stiffness atISO 26623, and in the early 1990s, the HSK system started being
higher speeds or high side loads. Most of these tools on the market areemployed on machines in Europe and later became DIN 69893 and
solid and the spindles have relatively low clamping force.later ISO 12164 with two rings of contact.

KM

HSK

Best – Three ring contact

PSC

Better

7/24 ISO Taper

Better

Good – One ring contact

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