Radial shaft seal DBH 1109 — 121.03 x 177.77 x 31.75

DBH 1109 is a radial shaft seal reference, within Seals. Request a quote for 1109 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 1109 radial shaft seal is a lip seal designed to retain lubricant and exclude contaminants on rotating shafts. With dimensions of 121.03 mm shaft diameter, 177.77 mm housing diameter and 31.75 mm height, and an A 247 design, it is used in equipment where radial space is ample and a reliable barrier against dust, water and particles is required. MR Accesorios Industriales carries this official brand and advises you so you choose the right seal for your application.

This item is a radial shaft seal from the DBH brand, identified by part number 1109. Its dimensions are 121.03 mm for the shaft diameter (d), 177.77 mm for the housing diameter (D) and 31.75 mm height (h). The A 247 design corresponds to a specific lip and case configuration that defines its behavior in service. As it is a precision part, it is essential to verify that these dimensions match the shaft and the cavity where it will be installed, since any difference affects sealing.

Radial shaft seals such as the DBH 1109 are used in gearboxes, pumps, electric motors, rollers and power transmission equipment. Their main function is to prevent oil or grease leaks and, at the same time, stop the entry of dirt, water or chips that accelerate wear on bearings and gears. In industrial environments with dust or moisture, a seal in good condition extends the service life of internal components and reduces maintenance downtime.

To correctly select this seal, take into account the shaft diameter, the housing diameter and the available height. The A 247 design may include a main lip and an auxiliary exclusion lip, so it is advisable to review the mounting orientation and the direction of rotation if applicable. During installation, lubricate the lip with the same oil used in the equipment, avoid striking it and make sure the shaft has no burrs or excessive wear. A rough surface or an out-of-round shaft causes premature leaks.

If you need a seal equivalent to the DBH 1109 or a nearby size, the most practical thing is to send us the complete part number, the shaft, housing and height dimensions, and a photo of the original part if you have it. With that data we can look for alternatives within the same brand or other lines we carry, always respecting the critical dimensions. We can also advise you if the A 247 design is not available and a compatible replacement needs to be evaluated.

To request a quote for the DBH 1109 oil seal or ask about a similar size, send us the part number on WhatsApp at MR Accesorios Industriales. We reply with the options that best fit your equipment. We work with official brands and in-house manufacturing, and we have more than 80 years of experience in the industrial sector.