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We exclusively use pure plastics and none that come from recycling. |
Chemical Resistant
Applications in chemical environments such as cleaning, coating, etching, chemical treatment, and mixers using chemical solutions can corrode metal bearings and contaminate the environment. For this reason, plastic bearings are used in many chemical environments.
The photo below shows the actual changes to metal bearings and plastic bearings after immersion in chemicals.
●Metal Bearings (Condition after 24 hours immersed in chemical solvent)
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 Alkaline Cleaning Solution |
●Plastic Bearings (Condition after 24 hours immersed in chemical solvent)
 Acidic Cleaning Solution |
 Alkaline Cleaning Solution |
We conducted experiments with an acidic cleaning solution (left in the image) and an alkaline cleaning solution (right in the image). The upper images depict the condition after “24 hours” in the chemical cleaning solutions.
Due to the variety of plastics available, their resistance to chemicals varies depending on the type of plastic. Therefore, we use a specific plastic depending on the application and the chemical involved. Additionally, it is possible to select plastic combinations according to your preferences, especially if you prefer proven plastics. We also manufacture special plastic bearings that are not offered by other manufacturers.
Guidelines for Material Selection Based on Application:
Acids Alkalis Organic Liquids Oil
The following recommendations serve as guidelines.
Chemical resistance varies depending on the type of chemicals used. Please contact us for further information.
Recommendation Levels:
☆Highly Recommended ◎Recommended ○Satisfactory
Price Class
EX Exclusive A High-end B Average C Budget-friendly D Economical
| Application | Recommendation Level | Material | Price Class | |
| Chemical Environment | Acids
Hydrofluoric Acid and others |
☆ | PTFE （PT） | A |
| ☆ | UHMW （PE） | D | ||
| ◎ | PCTFE （PCT） | A | ||
| ◎ | PPS （PS） | B | ||
| ◎ | PEEK （PK） | A | ||
| ◎ | PEEK （PKG） | EX | ||
| ○ | PP （PP） | D | ||
| Alkalis
Sodium Hydroxide : etc. |
☆ | PTFE （PT） | A | |
| ◎ | UHMW （PE） | B | ||
| ◎ | PEEK （PK） | A | ||
| ◎ | PEEK （PKG） | EX | ||
| ◎ | PPS （PS） | B | ||
| ○ | PP （PP） | D | ||
| Organic Liquids
Alcohol and so on. |
☆ | PTFE （PT） | A | |
| ☆ | Phenol （SD） | C | ||
| ☆ | UHMW （PE） | B | ||
| ☆ | PEEK （PK） | A | ||
| ☆ | PEEK （PKG） | EX | ||
| ☆ | PPS （PS） | B | ||
| ☆ | PP （PP） | D | ||
| Oil | ☆ | PTFE （PT） | A | |
| ☆ | Phenol （SD） | C | ||
| ☆ | UHMW （PE） | B | ||
| ☆ | PEEK （PK） | A | ||
| ☆ | PEEK （PKG） | EX | ||
| ☆ | PPS （PS） | B | ||
| ☆ | PP （PP） | D | ||
