Technical Specifications Of Components; Bearings; Tool Holder Locking And Release Device - HSD ES915 Installation, Operation And Maintenance Manual

HSD
Technological equipment for Automation
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7.7 TECHNICAL SPECIFICATIONS OF COMPONENTS

7.7.1 Bearings

The front of the shaft is supported by a pair of precision angular contact ball bearings, 40 mm
diameter for versions with ISO 30 tool fittings and 45 mm diameter for versions with HSK F63
fittings.
The rear of the shaft is supported by a pair of precision angular contact ball bearings of 30 mm
diameter.
All bearing pairs are pre-loaded and lubricated for life with special high speed grease.
The bearings are lubricated for life and do not require greasing.

7.7.2 Tool holder locking and release device

The tool holder is mechanically locked by springs that develop an axial force of:
ELECTRO-SPINDLE
MODEL
ES915 ISO 30---
ES919 ISO 30---
ES919 HSK F63
Tool release is achieved by the movement of a single acting, double stage, compressed air
cylinder operating at a pressure of 7 bar (100 PSI).
The axial force applied to the tool holder by the locking springs is
guaranteed to remain constant for a minimum of 2,000,000 tool change
i
cycles.
1 tool change cycle = tool locked / tool released / tool locked
5801H0017 Rev. 02 _________________________________________________________ 35/98
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AXIAL SPRING
FORCE
3200 N ± 10%
3500 N ± 10%
3850 N ± 10%
AXIAL FORCE
ON TOOL HOLDER
_3000 N ± 10%
_3200 N ± 10%
11000 N ± 10%