To provide a stator rotation-type uniaxial eccentric screw pump capable of smoothly rotating a stator in a non-lubricated state, even when a discharge pressure is high and radial load is load, preventing or suppressing mixing of abrasion powder into food even in being abraded due to use for a long time, and being used in safe for the purpose of pressure-feeding of food even if it is abraded.
The uniaxial eccentric screw pump 1 applies ball bearings 30, 30 composed of an inner ring 34, an outer ring 38 and a ball 36 made of stainless, and a cage 32 made of resin, as bearings for rotatably supporting the stator while receiving radial load and thrust load applied to the stator 4, and at least one member of the inner ring 34, the outer ring 38 and the ball 36 of the ball bearings 30, 30 is coated with a diamond-like carbon film of 1-3 μm formed by an ion plating method and meeting a Food Sanitation Act.
TANEICHI JUN
OTSUBO SATOSHI
| JP2008175199A | 2008-07-31 | |||
| JP2000205277A | 2000-07-25 | |||
| JP2009255200A | 2009-11-05 |
Megumi Konishi
Hide Tanaka Tetsu
Ichi Hirose
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