DBH 6403 radial shaft seal — 48 x 80 x 13

DBH 6403 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 6403 and any equivalents.

The DBH 6403 is a radial lip seal built for rotating shafts. It keeps lubricant where it belongs inside the housing and blocks dust, water and other particles from getting in. The size reads as shaft 48 mm, housing 80 mm, height 13.00 mm, with an A 094 design. MR Industrial Accessories supplies this brand and can help you match the right seal to your equipment.

The code 6403 identifies this radial shaft seal within the DBH line. Reading the dimensions: d 48 mm at the shaft, D 80 mm at the housing bore, h 13.00 mm overall. The A 094 designation refers to a defined construction, which sets the lip style and the material used. This is a sealing element for rotary motion only; it is not intended for reciprocating shafts or for high-pressure service. It seats in the housing bore with a press fit, and the flexible lip rides against the shaft surface to close the gap.

You will find seals of this type in gearboxes, pumps, electric motors, conveyor rollers and other transmission equipment. In each case the job is the same: keep bearings and gears clear of dirt while holding oil or grease in place. Agricultural machinery, process lines and continuous conveying systems are common homes for it. Choosing the right one comes down to shaft speed, working temperature and the lubricant in use, among other factors.

Installation is straightforward but the details matter. Inspect the shaft for burrs, nicks or wear marks, and confirm the contact area is smooth. Apply lubricant to the lip before pressing it in, and check that the housing bore is clean and free of damage. For a replacement, look beyond the dimensions: the lip compound (NBR, FKM and similar) and the spring type also affect performance. If your original part carries a different code, a compatible option with the same dimensions can be located.

Have a seal code, a set of dimensions or a photo of the part? Send whichever you have. Knowing the equipment it fits is useful too. MR Industrial Accessories sources the part that suits the application, and quotes are handled over WhatsApp or email with no obligation.