DBH 8857 radial shaft seal — 5 x 15 x 4

DBH 8857 is a reference of radial shaft seal, within Seals. Request a quote for 8857 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The DBH 8857 radial shaft seal is a lip seal designed for 5 mm shafts, with a 15 mm housing and 4 mm height. Its function is to retain the lubricant inside the assembly and block the ingress of dust, water or particles that could damage bearings, bushings or gears. It is press-fitted into the housing and runs on the rotating shaft, forming a reliable dynamic barrier in small-sized equipment.

This item is a radial shaft seal from the DBH line, identified by part number 8857. According to the product page data, it corresponds to a 5 mm diameter shaft, a 15 mm housing and a total height of 4.00 mm. The Lx design indicates a single lip configuration with spring, suitable for oil or grease retention in applications where axial space is limited. It is a precision part that is installed with interference in the housing and seals against the shaft surface.

It is used in small electric motors, gear reducers, low-power pumps, pneumatic tools, household appliances and instrumentation equipment. It also appears in light transmission housings, fans, small compressors and laboratory machinery. In all cases it performs the dual function of containing the lubricant and preventing external contamination, extending the service life of bearings and reducing corrective maintenance.

To select the correct seal, verify that the shaft diameter, housing diameter and height match the values on the product page. The shaft surface must be ground and free of burrs; the housing must be clean and have the proper entry chamfer. During installation, lubricate the lip and use a support tube so as not to damage it. If the equipment runs at high speed or with extreme temperatures, contact us about material variants.

If you need a seal or an equivalent from another brand, send us part number 8857 or the exact shaft, housing and height dimensions. At MR Accesorios Industriales we cross-check that data against the alternatives and confirm the compatible alternative.

To request a quote for the DBH 8857 oil seal or ask about an equivalent size, write to us via WhatsApp and send us the part number. At MR Accesorios Industriales we reply with the technical information and provide a quote. We support factories and maintenance teams with direct advice.