DBH 5157 radial shaft seal — 22 x 37 x 7

DBH 5157 is a reference of radial shaft seal, within Seals. Request a quote for 5157 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The DBH 5157 radial shaft seal is a lip seal designed for rotating shafts of 22 mm diameter, with 37 mm housing and 7 mm height. Its function is to retain lubricant inside the assembly and prevent dust, water or particles from entering, protecting bearings and bushings. It is press-fitted into the housing and runs on the shaft with a flexible lip that compensates for small misalignments. It is a wear part that should be replaced at every teardown to prevent leaks and contamination.

This item is a radial shaft seal from the DBH brand, identified by part number 5157. Its dimensions are: shaft diameter 22 mm, housing diameter 37 mm and height 7.00 mm. The A 135 design corresponds to a single-lip seal with spring, suitable for rotating shafts with lubrication. The DBH 5157 nomenclature lets you locate it quickly in catalogs and ordering systems. It is a standard sealing part, not a structural component: its correct selection depends on the dimensions matching the shaft and housing.

Typical applications for a 22x37x7 mm oil seal include small gearboxes, electric motors, centrifugal pumps, compressors and transmission equipment. It is also used in machine tools, conveyors and agricultural equipment where shafts rotate inside a housing with lubricant. In all cases, the seal separates the oil or grease from the outside environment and prevents dust from entering the bearings. It is commonly found in assemblies where axial space is limited and a compact seal is needed.

To install a radial shaft seal, verify that the shaft has no burrs or marks that could damage the lip. Lubricate the lip with the same grease or oil used in the equipment before inserting it. Place the seal perpendicular to the shaft and press with a tube of suitable diameter, never striking directly on the lip. If the housing has a shoulder, make sure the seal seats at the bottom. When selecting, consider peripheral speed, temperature and fluid type. The A 135 design is suitable for general applications at moderate speeds.

If you need an oil seal equivalent to the DBH 5157, you can search by the dimensions 22x37x7 mm or by part number 5157 in other brands. We can also offer you a size: for example, a seal with the same shaft diameter but different height, or a slightly larger housing. For that, it is important that you tell us the exact shaft and housing dimensions, and the type of fluid to be retained.

At MR Accesorios Industriales we supply the DBH brand as part of our seals and oil seals line. If you want to request a quote for the DBH 5157 oil seal, send us part number 5157 on WhatsApp along with the quantity you need. You can also send us a photo of the part or the shaft and housing dimensions. Our technical team replies with the alternatives that best fit your equipment.