Radial shaft seal DBH 8720 — 55.40 x 76.15 x 12.70

DBH 8720 is a radial shaft seal reference, within Seals. Request a quote for 8720 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8720 radial shaft seal is a lip seal designed to retain lubricant and exclude contaminants in rotating equipment. Because of its dimensions of 55.40 mm shaft, 76.15 mm housing and 12.70 mm height, it is installed in gearboxes, pumps and motors where axial space is limited. Its Mx design combines a sealing lip with a metal body that press-fits into the housing. It is a common replacement part in industrial maintenance.

This item is an oil seal from the DBH brand, identified with the code 8720. Its dimensions are 55.40 mm shaft diameter, 76.15 mm housing diameter and 12.70 mm height. The Mx design indicates a specific construction configuration within the radial shaft seal line. The sealing lip works on the rotating shaft, while the outer diameter seats in the cavity with interference to prevent leakage. The 12.70 mm height defines the width of the cavity where it is installed.

Typical applications for an oil seal such as the DBH 8720 include gearboxes, centrifugal pumps, electric motors, transmission shafts and continuous process equipment. In all cases, its function is twofold: to retain the oil or grease inside and to block the ingress of dust, water or particles. It is commonly found in equipment where the shaft rotates at moderate speeds and the working temperature does not exceed the limits of the elastomer. It is also used as a spare part in scheduled preventive maintenance.

To correctly select this oil seal, verify that the shaft, housing and height dimensions match those of your equipment's housing and shaft. The shaft surface must be free of burrs, scratches or excessive wear; a damaged shaft accelerates lip failure. During installation, lubricate the lip with the same oil as the equipment and avoid hitting it or reversing its orientation. The Mx design requires the lip to face the fluid to be retained. If the housing shows play or deformation, correct it before installing.

If you need an oil seal equivalent to the DBH 8720 or a neighboring size, the most practical approach is to send us the full code, the shaft, housing and height dimensions, and a photo of the old part if you have it. With that data we can look for alternatives in other brands or confirm whether the Mx design is suitable for your application. We can also advise you if the original oil seal has any coating or special material worth maintaining.

To request a quote for the DBH 8720 oil seal or ask about a similar size, send us the code on WhatsApp at MR Accesorios Industriales. We will reply with replacement options. If you have questions about installation or selection, our technical team can help you validate the choice before buying. MR Accesorios Industriales carries this brand as part of its line of seals and oil seals for industrial maintenance.