Blue Diamond claims to have had some success in minimising the noise emissions from its range of customised semi-precision bearings, which have diverse applications from sliding wardrobe doors to sports equipment and industrial materials handling systems. These bearings are designed to carry a load, while rolling along a track way, often in an oscillating mode. Quieter operation is being achieved both by reducing internal friction and by attention to the materials used in the 'tyres', which run along the track way. The company will customise a bearing by taking a standard unit and combining it with a tyre material that best suits the application.