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 Products New Bearing Technologies |
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| Aqua-Bearing / Performance |
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Table 1 – Corrosion resistance
The Aqua-Bearing corrosion resistance is superior to that of conventional resin bearings (PE and PS) and it is equivalent to that of ceramics bearings.
|
Aqua-Bearing |
PE |
PPS |
Ceramic |
Concentrated Sulfuric Acid |
O |
A |
A |
O |
Hydrochloric Acid |
O |
O |
O |
O |
Nitor-muriatic Acid |
O |
A |
X |
O |
Acetic Acid at 15% |
O |
A |
A |
O |
Nitric Acid at 75% |
O |
X |
X |
O |
Chromic Acid at 40% |
O |
X |
A |
O |
Halogen Gas |
O |
X |
O |
O |
Evaluation of corrosion resistance: O - No corrosion / - partial corrosion / X - Corrosion
Figure 1 – Results of Durability Tests in Strong Acid Environment
Compared to other bearing types, durability of the Aqua-Bearing in strong acid environments is excellent.
Figure 2 – Results of Water-Spray Durability Tests
Remarkable endurance may be observed under light-load conditions.
Precautions:
1. For organic solvent or fluoride environments, please contact NSK.
2. For elevated temperature environments, please contact NSK.
3. Bearing load should be less than 1% of the Dinamic Load Capacity.
4. The rotation limit should be less than one dmn of approximately 20,000.
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| Self-aligning roller bearings. |
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| A NSK relationship program with its Distributors. |
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