Durometer is the international standard for measuring the hardness of rubber, plastic, and most nonmetallic materials. Hardness, measured on a Shore A or D scale, is a material’s resistance to surface penetration. Harder materials have more wear resistance, but they’re also less flexible. An object may fall within more than one side.
Durometer is expressed numerically:
- 10A – 50A – Very Soft Urethanes best suited for applying coatings
- 50A – 85A – Soft Urethanes used for particle impingement applications
- 80A – 95A – Mid-range Urethanes of medium resilience used for abrasive applications due to longevity of the material
- 90A – 95A – Hard Urethanes that work best in impact and sliding types of abrasion applications
- 60D – 75D – Very Hard Urethanes that work well in bearing and bushing applications
Shore Hardness Scales:
Dual durometer urethane wheels are ideal for applications that involve lighter loads or where machining is cost-prohibitive or weight is a factor.
Urethane Innovators makes urethane wheels, covered bearings, rollers, dunnage, and custom parts for a wide variety of application types.
As part of our goal of “better, faster, and more economical,” UI has invested in prototyping, modeling, and testing equipment.