DBH 5581 radial shaft seal — 50.8 x 65.1 x 11.9

DBH 5581 is a reference of radial shaft seal, within Seals. Request a quote for 5581 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The DBH 5581 radial shaft seal is a lip seal that prevents lubricant leakage and contaminant ingress on rotating shafts. It mounts in cylindrical housings and works on the shaft with a flexible lip that maintains contact. It is a wear part: when oil leakage, noise, or play appears, it should be replaced. MR Accesorios Industriales sells this brand and advises you on choosing the right seal based on shaft and housing dimensions.

This item is a seal from the DBH brand, identified by code 5581. Its dimensions are: shaft diameter 50.80 mm, housing diameter 65.10 mm, and height 11.90 mm. The indicated design is A 159. These three values define the seating: the lip rests on the shaft, the outer diameter fits into the housing, and the height determines how much it protrudes or is recessed. Always check these dimensions before ordering, because a minimal difference prevents installation.

Radial shaft seals like the DBH 5581 are used in gearboxes, pumps, electric motors, rollers, and transmission equipment. Their function is to retain oil or grease inside the assembly and stop dust, water, or particles from entering from outside. In industrial plants, workshops, and production lines, they appear on continuously rotating shafts. They are also installed in old equipment where the original spare part is no longer available and an equivalent size must be found.

To select a seal correctly, in addition to dimensions, consider shaft speed, operating temperature, and lubricant type. A poorly installed lip or a scratched shaft causes leaks even if the part is new. When installing, lubricate the lip, avoid hitting it, and use a tube or sleeve that rests on the outer ring. If the shaft shows wear, consider a sleeve or a seal with auxiliary lip. Cleanliness of the housing and parallelism between shaft and housing are key to seal durability.

If code 5581 is not what you need, or if the size does not match your equipment, send us the old seal's data: shaft diameter, housing diameter, height, and a photo of the part. With that, we look for an equivalent within the same family. We can also advise you on lip design and elastomer material based on fluid and temperature. You don't need the exact code: with the dimensions, it's enough to identify the part.

To request a quote for the DBH 5581 seal or its equivalent, write to us on WhatsApp and give us the code or dimensions. At MR Accesorios Industriales, we handle technical inquiries and help you confirm that the part is correct before purchasing. If you need several units or a replacement for a specific machine, tell us the use and working environment. That way, we give you a more precise answer and avoid returns due to size errors.