Radial shaft seal DBH 5503 — 19.00 x 28.67 x 4.76

DBH 5503 is a radial shaft seal reference, within Seals. Request a quote for 5503 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 5503 radial shaft seal is a lip seal designed to retain lubricant and exclude contaminants on rotating shafts. Its dimensions of 19 mm shaft diameter, 28.67 mm housing bore and 4.76 mm height make it suitable for compact spaces where reliable sealing is required. It is press-fitted into the bore and runs in direct contact with the shaft, creating a dynamic barrier that extends the service life of bearings and bushings.

This item is a radial shaft seal from the DBH brand, identified by part number 5503. Its standard dimensions are 19 mm shaft diameter (d), 28.67 mm housing bore diameter (D) and 4.76 mm height (h). The A 186 design corresponds to a single-lip configuration with a spring, intended for moderate rotation applications where axial space is limited. The lip elastomer is formulated to resist common industrial oils and greases, and the outer case ensures a firm fit in the housing.

Typical applications for a seal such as the DBH 5503 include small gearboxes, electric motors, centrifugal pumps, gear reducers and power transmission equipment. It is also found on rollers and shafts of machine tools, where it prevents lubricant leakage and the ingress of dust or chips. Because of its compact size, it is common in assemblies where radial and axial space is very tight and efficient sealing is needed without adding bulk.

To select this seal correctly, verify that the shaft diameter is within the recommended tolerance and that the contact surface has adequate hardness and roughness. The housing must have the exact diameter of 28.67 mm and a depth that accommodates the 4.76 mm height without deforming the lip. During installation, lubricate the lip with the same oil used in the equipment and use a support tube to prevent damage. If the shaft shows wear, consider a nearby size or a design with an auxiliary lip.

If you need a seal equivalent to the DBH 5503 or a nearby size, contact us via WhatsApp. We can look for alternatives in other brands or similar configurations, always respecting the critical dimensions of 19 mm shaft, 28.67 mm housing bore and 4.76 mm height. We can also advise you on the A 186 design and its variants according to the type of lubricant and working conditions. Send us the part number or the dimensions and we will reply shortly.

At MR Accesorios Industriales we supply the DBH brand as part of our line of seals and oil seals. If this item does not exactly match your application, write to us via WhatsApp with the part number 5503 or with the dimensions of your shaft and housing. Our technical team helps you find the right solution.