Phenol [phenol formaldehyde resins (PF)]
Uniquely Kashima
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Phenolic resin is a material with special features which make it very popular for plastic bearings.
Overview of Phenol
Phenol plastic ( i.e., Bakelite, formaldehyde resin, carbolic acid resin )
Phenolic resin consists of phenol and formaldehyde thermosetting resin as raw materials, which are artificially synthesized from non-plant materials; first in the world of plastic.
Since it is produced from resins similar to phenols cresol, producers are frequently called phenol plastics including these “phenolic resins”.
Insulating, non-magnetic, highly resistant to oils and chemicals; strong heat resistance, but weak in alkalis.
Relatively inexpensive considering its superior performance
Features of Phenol
◎ Highly Recommended ○ Recommended
△ Not Recommended × Do Not Use
Material | Call symbol |
Dry | Irregular moisture |
In water / In sea-water |
Vapor | Chemical | Non- magnetic |
Insulating | |||
---|---|---|---|---|---|---|---|---|---|---|---|
Acid | Alkali | Organic solvent |
Oil | ||||||||
Phenol | SD | ◎ | ◎ | ◎ | ◎ | ○ | × | ◎ | ◎ | ◎ | ◎ |
SDK | ◎ | ◎ | ◎ | ◎ | ○ | × | ◎ | ◎ | × | × | |
SDHG | ◎ | △ | △ | × | ○ | × | ○ | ◎ | × | × |
NOTE: For chemicals, please consult us regarding the type and concentration, etc. of such.
Temperature Resistance of Phenol
☆ Best Recommended ◎ Highly Recommended ○ Recommended
△ Not Recommended × Do Not Use
Material | Call symbol |
Temperature | |||||||
---|---|---|---|---|---|---|---|---|---|
-190℃~ | -100℃~ | -50℃~ | -20℃~ | Room temperature ~60℃ |
~120℃ | ~200℃ | ~350℃ | ||
Phenol | SD | × | × | ○ | ◎ | ☆ | ◎ | × | × |
SDK | × | × | ○ | ◎ | ☆ | ◎ | × | × |
NOTE: the shape of the bearing will change due to such temperatures.
For more information about tolerances and other issues, download a catalogue from here.