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B – Molded Rubber. Hardness: 80 Shore A. (-20ºC to + 70ºC). Produced with molded vulcanized rubber tread over a grey cast iron wheel center. They roll softly with a low noise level, absorb shocks and vibrations. They are resistant to abrasion and chemicals. They can be used at a speed of up to 20km/h when mounted with ball bearings.
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NFV – Fiberglass-reinforced Nylon. Hardness: 80 Shore D. (-40ºC to + 180ºC). Produced with fiberglass-reinforced polyamide nylon 6.6. Indicated for utilization in high and low temperature applications. They are light and have an excellent mechanical resistance, roll very easily, requiring less effort in maneuvering and handling. Resistant to greases, oils, and some kinds of acids.
BP – Thermoplastic Compound with PVC. Hardness: 80 Shore A. (-10ºC to + 50ºC). Produced with recyclable thermoplastic compound with PVC tread and polypropylene copolymer wheel center. They offer a soft and quiet rolling, great floor protection, good chemical, wear and impact resistance, resulting in an excellent cost-benefit ratio. Nominal working speed is up to 4km/h.