Doppelpaarig – Galvanised – For Geradelaufende wood or metal gates. Doppelpaariges suspension with pendulum Hub, Axle and bracket, with Tragschr screw · Height and seitenverstellbar with good running properties through a ball bearing-mounted wheels · Ball bearing with greasing no need lubrication safety in accordance with UL94 V2 Temperature range from -20 °C to + 90 °C is the life of the ball bearings virtually unlimited – the use of more than 2 Rolling appliances on a a wings is not recommended – Please choose the right profile made