Radial shaft seal DBH 5277 — 55.00 x 90.00 x 13.00

DBH 5277 is a radial shaft seal reference, within Seals. Request a quote for 5277 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 5277 radial shaft seal is a rotating shaft seal that mounts in the housing and closes against the shaft to retain lubricant and stop dust, water or particles from entering. Due to its dimensions of 55.00 mm shaft, 90.00 mm housing and 13.00 mm height, with Lx design, it is used in gearboxes, pumps, electric motors and power transmission equipment. MR Accesorios Industriales carries this brand and helps you confirm the correct variant for your equipment.

This item is a radial shaft seal from the DBH line, identified by part number 5277. Its dimensions are 55.00 mm shaft diameter, 90.00 mm housing diameter and 13.00 mm height, and it corresponds to the Lx design. The Lx design defines the geometry of the lip and the metal body, so it should be respected when replacing the part. The seal combines an elastomeric element with a reinforcement that gives it rigidity to keep the lip pressed against the moving shaft.

Typical applications for a seal of this size appear in equipment with transmission shafts: gearboxes, reducers, centrifugal pumps, electric motors, mixers and machine tools. In all cases it performs the same function: confine the oil or grease inside the assembly and prevent contaminants from entering from outside. It is also found in rollers, conveyors and process equipment where the shaft rotates continuously and the bearings must be protected.

To install it, verify that the shaft has no burrs, deep scratches or wear in the contact area, and that the housing is clean and free of deformation. Lubricate the lip before inserting it and place the seal perpendicular to the shaft, without striking it unevenly. When selecting a replacement, take into account the rotation speed, working temperature and type of lubricant, because they influence the service life of the lip. If the shaft shows wear, it may be necessary to use a wear sleeve or an alternative size.

If you need an equivalent or a nearby size, send us part number 5277 along with the shaft, housing and height dimensions, and a photo of the old part if you have one. It also helps to indicate the equipment where it is mounted and the fluid it seals. With that data we review alternatives within the same DBH line or from other brands we carry, and we confirm which option fits without modifying the housing or the shaft.

MR Accesorios Industriales carries the DBH brand and has more than 80 years of experience in the industry. If you want to request a quote for the 5277 oil seal or ask about a nearby size, write to us via WhatsApp and we will reply with the technical information you need to make your purchase decision.