FIELD: process engineering.
SUBSTANCE: invention relates to motor-driven hand-held tools. It comprises rotary tool, drive shaft and working shaft with tool fitted thereon. Drive shaft rotation is transmitted to working shaft via coupling. Drive shaft runs in bearing fitted in tool body. Note here that coupling is engaged with drive shaft between two bearings.
EFFECT: reduced wear and heat emission.
7 cl, 4 dwg
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Authors
Dates
2012-12-27—Published
2008-02-20—Filed