April 11, 2008
ThyssenKrupp Takes On Distribution of DuPont™ Vespel® Shapes in Canada
DuPont Engineering Polymers has recently selected ThyssenKrupp Materials North America as its authorized distributor of Vespel® polyimide stock shapes in Canada. The distributor serves Canadian customers from four strategically located warehouse/sales offices, in Toronto, Montreal, Edmonton and Vancouver.
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October 24, 2007
Low-abrasion DuPont™ Vespel® thrust washers lengthen maintenance intervals in automatic gearboxes of buses
The planet wheels in Voith Turbo’s new DIWA®¹.5 automatic gearboxes rotate against low-abrasion DuPont™ Vespel® thrust washers separating them from the planet-wheel carrier. Developed for public transit buses by Voith Turbo, of Heidenheim, Germany, the thrust washers made of DuPont™ Vespel® SP21 polyimide fulfil their function virtually without abrasion, in spite of the high relative rotating speed of more than 20 000 rpm between these components. This permits extremely long maintenance intervals for the highly stressed gearboxes, which are being installed today by all major bus makers.
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