Horizontal axis top loading washing machines

The drum is supported at both sides usually with single row deep groove ball bearings.The out of balance load is centred between the two support bearings, so the maximum speed of the drum is not as critical as it is for the front loading design.This means that for the same load size and speed, the bearings used in the top loading design are usually smaller than those used in front loading applications.
SKF single row deep groove ball bearings
The ball bearings commonly used have metal shields and normal internal radial clearance. Bearings are lubricated for life with grease having the following properties:
- Noise and dampening capabilities
- Long life at medium temperatures
- Good resistance to corrosion and humidity
Compact sealing solution
In this type of machine the bearings need to be protected against water/humidity by a static and dynamic seal. SKF can provide a wide standard range of static and dynamic seals. Special seals can be manufactured on the basis of design requirements.Right drum position
At the end of the washing cycle the drum must be positioned with the door on top to facilitate easy and effective laundry removal. This special positioning requirement can be achieved with a new type of SKF sensor bearing unit. This unit can give speed and rotation sense control as additional features. Customised products can be designed according to the specification required.
Solutions
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Garter seal with labyrinth image
Garter seal with integrated labyrinth used instead of traditionally seal plus rubber flat for static sealing
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Hub bearing units
SKF has developed integrated units to support the drum with several advantages
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Magnetized bearing seal
Low cost for an integrated solution respect the standard axial and radial dimension of a standard bearing
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PTFE axial seal for water pump
Axial seal in PTFE material, gives the possibilities to reduce the number of components
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Rubber axial seal for water pump
Axial seal in water material gives the possibilities to reduce the number of components
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Rubber axial seal for drum
Axial seal in rubber material, gives the possibilities to reduce the number of components
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SKF Special ICOS for washing machine
The need for compactness and system integration was the base for the design of ICOS
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Small single row deep groove ball bearings
Single row deep groove ball bearings are particularly versatile
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Garter seal
Garter seal is obtained in low friction material