Radial shaft seal DBH 6643 — 17.50 x 28.50 x 6.00

DBH 6643 is a radial shaft seal reference, within Seals. Request a quote for 6643 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 6643 radial shaft seal is a lip seal that mounts in the housing and seals against the shaft to retain lubricant and block the entry of dust, water or particles. Its dimensions of 17.50 mm shaft, 28.50 mm housing and 6.00 mm height place it in compact low- and medium-speed applications. MR Accesorios Industriales carries this official brand and advises you on choosing the right seal for your equipment.

This item is a DBH 6643 radial shaft seal, identified by its designation 6643. Its published attributes are: shaft diameter 17.50 mm, housing diameter 28.50 mm, height 6.00 mm and Lz design. The Lz design corresponds to a seal with a sealing lip and standard configuration for rotating shafts. Always verify these three dimensions against the housing and shaft before replacing, because a difference of tenths can cause leaks or a forced fit.

Seals of this size are used in small centrifugal pumps, electric motors, compact gear reducers, compressors, gearboxes, fan shafts and transmission equipment. They also appear in agricultural machinery, pneumatic tools and process equipment where oil or grease must be contained and bearing contamination prevented. If the equipment works with a lot of dust or water, it is worth evaluating an additional lip or an external guard.

To select the seal, in addition to the dimensions, take into account the shaft speed, working temperature and type of lubricant. The Lz design is suitable for moderate speeds and oil or grease lubrication. During installation, lubricate the lip, verify that the shaft has no burrs or marks and place the seal perpendicular to the shaft, without striking it directly. If the housing is damaged, the new seal may not seal even if it has the correct dimensions.

If you cannot find code 6643 or need a nearby size, send us the dimensions of the old seal: shaft diameter, housing diameter, height and lip type. With that data we look for the equivalent in DBH or another brand we carry. We can also advise you if the space allows a taller seal or a design with a dust guard. The idea is that you don't end up with equipment down because of a seal.

To request a quote for the DBH 6643 oil seal, write to us on WhatsApp and send us the code or the dimensions. MR Accesorios Industriales has more than 80 years in the industry and carries seals, bearings, power transmission and lubricants. We reply with the alternative that best suits your application.