DBH 5821 radial shaft seal — 26 x 42 x 10

DBH 5821 belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 5821 and any equivalents.

The DBH 5821 is a radial shaft seal with a 26 mm shaft diameter, 42 mm housing bore, and 10 mm height, featuring the Lx design. It keeps lubricant in and contaminants out of gearboxes, pumps, motors, and transmission equipment. The flexible lip runs against the rotating shaft to maintain a seal in continuous operation. MR Industrial Accessories supplies this brand and helps you verify the size before you request a quote.

This single-lip seal has an Lx design, meaning it has a sealing lip and a metal outer case for press-fitting into a cylindrical housing. The dimensions to check are shaft 26 mm, housing bore 42 mm, and height 10 mm. Always confirm these against your equipment, because a seal with the same cross-section but a different design may not seal the same way.

You will find seals of this size in gearboxes, reducers, centrifugal pumps, electric motors, compressors, and power transmission equipment. In these applications, the seal retains oil or grease and blocks dust, water, or particles from entering. It also serves as a closure in bearings and bushings where the shaft turns continuously and leakage is a concern.

When selecting a seal, consider shaft speed, operating temperature, and lubricant type in addition to dimensions. The lip must run on a smooth, ground shaft surface free of marks. If the shaft is worn, you may need a seal with an offset lip or a wear sleeve. During installation, lubricate the lip and press it in perpendicular to the housing to avoid damage.

We can source an equivalent from another brand. To do so, send us the shaft diameter, housing bore, and height via WhatsApp, or a photo of the old seal with measurements. We verify the manufacturer's data sheet and offer the best fit for your equipment.

MR Industrial Accessories supplies the DBH brand. If you know you need the 5821, message us on WhatsApp with that code for a quote. If you are unsure about the size, contact us and we will help you confirm it before you buy.