Phenol [phenol formaldehyde resins (PF)] | Plastic Ball Bearings all Made in Japan Kashima Bearings, Inc. Japan

Phenol [phenol formaldehyde resins (PF)]

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Characteristics of Phenol [phenol formaldehyde resins (PF)] Materials Characteristics of Phenol [phenol formaldehyde resins (PF)]

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.

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