DBH 8257 radial shaft seal — 4.8 x 22 x 7

DBH 8257 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 8257 and any equivalents.

For rotating shafts where space is tight, the DBH 8257 radial shaft seal offers reliable exclusion of contaminants and retention of lubricants. Its compact profile suits power transmission components and small mechanisms. MR Industrial Accessories supplies this seal and helps you confirm the correct size and design for your application.

The DBH 8257 is a radial shaft seal with shaft diameter 4.80 mm, housing diameter 22.00 mm, and height 7.00 mm. The Ls design features a sealing lip with spring for rotating shafts. The code 8257 identifies this size within the DBH line. Always check these dimensions against your shaft and housing, as even slight deviations can compromise sealing performance.

Typical uses include gear reducers, pumps, electric motors, transmission shafts, and agricultural or industrial machinery. It retains oil or grease while keeping out dust and water. This seal is also found in low-power equipment and assemblies with moderate shaft speeds. Periodic inspection helps prevent lubricant loss and subsequent damage to bearings and gears.

When selecting a seal, consider shaft diameter, housing diameter, height, and design type. The Ls design is intended for lubricated rotating shafts and requires a polished, burr-free shaft surface. During installation, lubricate the lip with the system's oil or grease, insert perpendicular to the shaft, and avoid impact. If shaft wear is present, consider a seal with an additional lip.

To request a quote, send the code 8257 or the original seal's dimensions via WhatsApp. MR Industrial Accessories can suggest alternatives within the DBH line or from other brands we supply. We also assist with identification from a sample or equipment data sheet. Provide as much information as possible for an accurate proposal.