Radial shaft seal DBH 6257 — 19.00 x 31.75 x 6.35

DBH 6257 is a radial shaft seal reference, within Seals. Request a quote for 6257 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 6257 radial shaft seal is a single-lip seal that closes off the passage of oil or grease on rotating shafts and keeps out dust and water. With its dimensions of 19 mm shaft, 31.75 mm housing and 6.35 mm height, it is used in gearboxes, pumps, electric motors and power transmission equipment. MR Accesorios Industriales carries this official brand and advises you so you choose the right seal according to the shaft, the housing and the type of lubricant.

This item is a DBH 6257 radial shaft seal, with the following dimensions: shaft diameter 19 mm, housing diameter 31.75 mm and height 6.35 mm. The Lx design corresponds to a single-lip seal with spring, intended for rotating shafts with oil or grease lubrication. The designation 6257 identifies the exact size within the DBH line, and the MPN code 6257 matches that same reference. It is a compact-section seal, suitable for tight spaces where a taller seal will not fit.

Typical applications for a seal of these dimensions include small gearboxes, centrifugal pumps, low-power electric motors, spindles and transmission equipment. It is also found in machine tools, packaging equipment and centralized lubrication systems. As a sealing component, its function is to retain the lubricant inside the assembly and block the entry of contaminants, which extends the life of bearings and gears. In all those cases it is advisable to verify the working temperature and the peripheral shaft speed before specifying it.

To install a radial shaft seal, check the condition of the shaft: free of burrs, free of deep scratches and with the appropriate roughness for the lip. The housing must be clean and free of deformation, and the seal is pressed in with a press or with an installation tube that bears on the outer ring, never on the lip. Before fitting it, lubricate the lip with the same grease or oil used in the equipment. If the shaft shows wear, consider a neighboring size or a seal with the lip in a different position. The final selection depends on the pressure, the temperature and the type of fluid to be retained.

If you need an equivalent to the 6257 or a close size, send us the code and the shaft, housing and height dimensions. With that data we look for alternatives within the DBH line or from other brands we carry, respecting the Lx design and the lip type. We can also guide you if the original seal is not available and a standard size has to be adapted. The more complete the information about the assembly, the more accurate the proposal will be.

To request a quote for the DBH 6257 oil seal or ask about a similar size, write to us on WhatsApp and send us code 6257 along with the dimensions. At MR Accesorios Industriales we reply with the available alternative and the technical data you need to confirm the installation. If you keep a list of seals for maintenance, we can help you build the complete order with the codes you already use.