Hydraulic Oil Petroleum Caster Compatibility

Chemical Overview

Molecular Formula: Mixture (primarily hydrocarbons)

Physical Properties: Hydraulic oil (petroleum-based) is a viscous liquid with a density of ~0.85-0.90 g/cm³ and a boiling point >300°C. It is insoluble in water and non-polar. (Source: PubChem)

Industrial Applications

Hydraulic oil is used in machinery, automotive, and industrial equipment. Caster wheels may be exposed in workshops or manufacturing facilities.

Wheel Material Compatibility Summary

Best Suited (A/B): Polyolefin, Nylon Glass Filled, and Ductile Cast Iron are highly resistant to hydraulic oil.

Avoid (C/D): Avoid Rubber, Thermoplastic Rubber, and Neoprene/Nylon Glass Core due to swelling or degradation.

Wheel Compatibility Table

Wheel Material	Interaction Description	Rating
Ductile Cast Iron	Resistant; minimal interaction.	A
Elastomer	Moderate swelling; limited suitability.	C
Forged Steel	Resistant; no significant degradation.	A
Neoprene/Nylon Glass Core	Neoprene swells; nylon core resists but overall poor.	D
Nylon	Good resistance; slight absorption.	B
Nylon Glass Filled	Excellent resistance; highly stable.	A
Phenolic	Good resistance; minimal effect.	B
Polyolefin	Excellent chemical inertness.	A
Polyurethane on Aluminum Core	Good resistance; aluminum unaffected.	B
Polyurethane on Iron Core	Polyurethane resists; iron core unaffected.	B
Rubber	Swelling and softening; unsuitable.	D
Solid Elastomer	Moderate swelling; poor performance.	C
Thermoplastic Rubber	Significant swelling; rapid degradation.	D
Urethane	Good resistance; slight softening possible.	B
V-Grooved Iron	Resistant; no significant interaction.	A

Conclusion

Hydraulic oil (petroleum) is a non-polar fluid, and Polyolefin, Nylon Glass Filled, and metal-based wheels like Ductile Cast Iron are ideal. Avoid Rubber and Thermoplastic Rubber due to swelling. For more details, contact us at CasterTech.