APPLICATION>Floor Polisher
Floor Polisher
The development of compact motors and cleaning tools has increased the use of floor polishers both in industry and in the household. The cleaning part of these appliances consists of two or three brushes or pads for functions including:

> Polishing/buffing hardwood floors and other materials.
> Removing stains from carpets.
> Stripping floors and applying wax.

The brush and pad rotation is achieved by universal motors. These motors can be placed either in the machining or brush cases. Motor power varies between 0.5-1.5 KW giving a rotor speed of approximately 1000 rpm.

HCH bearings for rotor movement
The rotor of the universal motor is supported by two single row deep groove ball bearings. To ensure good protection against ingress of dust and other particles whilst cleaning, the bearings need to be fitted with contact rubber seals. The internal radial clearance is optimized to meet the machine design and to achieve a good compromise between noise and temperature rise. The bearings are charged with the optimum quantity of the appropriate grease to ensure good lubrication for the machine' s service life.

Improved service life can be achieved for HCH bearings due to:

> Extended grease life
> Good performance in air-streams and condensation
> High wear resistance against particulate contamination (sand, pigments, abrasives, steel, iron oxides etc.)
> Resistance to electric current

● The radial clearances of bearings with electric motor quality

Tolerance in μm.

Bore CM
Over Including Min. Max.
mm Inch mm Inch μm μm
10 0.3937 18 0.7087 4 11
18 0.7087 24 0.9449 5 12
24 0.9449 30 1.1811 5 12
30 1.1811 40 1.5748 9 17
40 1.5748 50 1.9685 9 17
50 1.9685 65 2.5591 12 22

浙公网安备 33028202000255号