SKF TSO 218/VZ643 housing covers and accessories

SKF TSO 218/VZ643 is a reference of housing covers and accessories, within Bearing housings. Request a quote for TSO 218/VZ643 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

SKF TSO covers are closure components for bearing housings. They are mounted on the housing and serve two functions: retaining lubricant and blocking the entry of dust, water or particles. They are part of the family of housing accessories and are selected according to the housing and the type of sealing required. At MR Accesorios Industriales we carry them and help you identify the correct variant from the code stamped on the part or the equipment drawing.

The designation TSO identifies a housing cover. The first number that follows —in the example TSO 218— is linked to the size of the housing it is intended for: the higher the number, the larger the housing. The suffix after the slash, such as VZ643, refers to a construction or sealing variant defined by the manufacturer. That is why, to order it, saying 'TSO cover' is not enough: you need to provide the full code, because two covers of the same size can differ in the type of closure.

These covers are used in equipment where the bearing operates in environments with dust, moisture or frequent washdowns. They appear in conveyors, pumps, fans, mixers and machines in the food, chemical or cement industries. In Argentine plants they are commonly found on split plummer block housings mounted on drive shafts, where access for maintenance is limited and an additional barrier against contamination is needed.

To select the correct cover, first verify the housing: the size and type of housing must match. Then, the sealing: a cover with a labyrinth or with a contact seal defines whether the equipment withstands washdowns or only dry dust. Installation requires cleaning the mounting surface, checking that the cover seats without forcing and controlling alignment with the shaft. If the cover includes a seal, lubricate the lip before mounting and avoid striking it with impact tools.

SKF covers can be interchanged with those of other housing manufacturers, but the equivalence is not automatic: housing diameter, height and type of sealing must be compared. In general, standard housings follow similar dimensions between brands, although sealing suffixes change. If you have the old code or the original cover, send us a photo or the drawing and we will verify it.

If you need a TSO cover to replace a housing, write to us on WhatsApp with the full code —for example, TSO 218/VZ643— or with the housing dimensions. At MR Accesorios Industriales we confirm the available variant and advise you so that the cover seals properly and lasts.