Oil seals are components of a machine that seal in lubricants.
Oil seals prevent this lubricant, water and chemicals from leaking through the bearing clearance, as well as preventing the entry of dust and dirt into the machine.
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Various materials and types are available in order to offer excellent performance under any conditions.
- The product can be designed for good performance in special conditions.
Needless to say they deliver high performance under general conditions. ( Standard type, Standard material ) 
- They are available not only in Japan but in other countries. NOK products are well known to the world.
- such as ISO standard, JIS standard, JASO standard.( Standard type, Standard dimension Shaft diameter is under 300mm.)
