DBH 6257 radial shaft seal — 19 x 31.75 x 6.35

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

The DBH 6257 radial shaft seal is a single lip seal that closes the passage of oil or grease on rotating shafts and prevents the entry of dust and water. Due to 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 sells this brand and advises you to choose the correct seal according to the shaft, housing and 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, designed 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 does 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 lubricant inside the assembly and block the entry of contaminants, which extends the life of bearings and gears. In all these cases, it is advisable to verify the working temperature and the peripheral speed of the shaft before defining it.

To mount a radial shaft seal, check the condition of the shaft: free of burrs, without deep scratches and with adequate roughness for the lip. The housing must be clean and free of deformation, and the seal is inserted with a press or with a mounting tube that supports the outer ring, never the lip. Before installing it, lubricate the lip with the same grease or oil as the equipment. If the shaft shows wear, consider a seal with the lip in another position. The final selection depends on pressure, temperature and the type of fluid to be retained.

If you need an equivalent to the 6257, send us the code and the shaft, housing and height dimensions. With that data we look for alternatives within the DBH line or other brands we sell, respecting the Lx design and the lip type. We can also guide you if a standard size needs to be adapted. The more complete the assembly information, the more accurate the proposal will be.

To request a quote for the DBH 6257 seal, write to us via WhatsApp and send the code 6257 along with the dimensions. At MR Accesorios Industriales we reply with the corresponding reference and the technical data you need to confirm the mounting. If you manage a list of seals for maintenance, we can help you build the complete order with the codes you already use.