Industrial shaft seals

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gab.ru Wear Берг sleeves АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 22 Contents 281 Wear sleeves 282 Speedi-Sleeve ® 283 Speedi-Sleeve Gold 284 Installation 284 Choosing the right size 285 Mounting Speedi-Sleeve 285 Removal 286 Size listing / metric Speedi-Sleeve 298 Size listing / inch Speedi-Sleeve 310 Large diameter wear sleeves 310 General 310 Product features 311 Use 311 Mounting 311 Dismounting gab.ru 280Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс (495) 22
gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, Industrial факс shaft seals (495) 22 Wear sleeves To seal efficiently, radial shaft seals must run against a smooth round surface – the seal counterface. If the counterface becomes worn, and it usually does, then the seal will no longer be able to fulfil its function, which is to retain lubricant and to exclude contaminants – solid particles, liquids as well as moisture. Normally, the counterface will become grooved as a contaminant particle is caught under the seal lip and generates a track as the shaft rotates. As this continues, the seal will allow more particles to pass or get stuck, and seal efficiency deteriorates, eventually leading to malfunction of the component the seal is meant to protect. To rectify the situation it is necessary to repair the counterface on the shaft – a simple seal replacement will not be sufficient. To repair the shaft it is usually necessary to dismantle the machine in order to be able to handle the shaft and then to grind down the counter face until it is smooth again. If the grooves are deep the original size of seal will no longer function properly – a seal with a smaller shaft diameter has to be found to match it. Now there is an easy way to repair the counter face with the shaft still in position and without having to look for a different size of seal. The answer is wear sleeves from SKF. SKF wear sleeves are available in two different designs, depending on size. One is the extremely thin-walled ”Speedi-Sleeve” (fig 75), which allows replacement seals of the same size as the original seals to be used. These Speedi-Sleeves are produced for shaft diameters up to and including 203 mm. For larger shafts, up to approximately 1.150 mm in diameter, SKF produces the LDSLV wear sleeves in two designs: the LDSLV3 (fig 76) with a flange, and the LDSLV4 (fig 77) without a flange. Fig 75 Fig 76 Fig 77 gab.ru Берг АБ bergab@ya.ru Тел. (495)-228-06-21, факс 281 (495) 22
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Industrial shaft seals

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