DBH 5136 radial shaft seal — 12 x 30 x 8

DBH 5136 belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 5136 and any equivalents.

The DBH 5136 is a radial shaft seal built to keep lubricant in and contaminants out of rotating shaft assemblies. It measures 12 mm at the shaft, 30 mm at the housing bore and 8 mm in height, and it uses the Lx design, a lip-and-spring configuration that presses into the housing and rides on the shaft. Seals like this one are common in pumps, electric motors, gearboxes and power transmission equipment, where keeping oil or grease where it belongs protects bearings and gears.

The code 5136 belongs to the DBH line of oil seals. Reading the size is straightforward: shaft 12 mm, housing bore 30 mm, height 8 mm. The Lx design means the seal has a flexible lip with a spring, which is the arrangement used when the shaft turns and lubricant has to stay contained. The metal outer body holds the seal in place, while the lip elastomer handles contact with the rotating shaft and the service temperature of the application.

You will find this seal in centrifugal pumps, small electric motors, gear reducers, transmission shafts and machining equipment. Its job is always the same: hold lubricant inside the assembly and block dust, water and particles that would otherwise reach the bearings. Because the size is compact, it fits small equipment and tight spaces where the sealing point has to be precise.

Installation matters as much as the part itself. Check that the shaft has the right hardness and surface finish, and that the housing bore is clean and free of burrs. Press the seal in with a tool that applies even pressure on the outer ring, never on the lip. Lubricate the lip with the same oil or grease used in the equipment before mounting. If the shaft shows wear, a seal with an auxiliary lip is worth considering.

If you need an equivalent or a different size, send the code 5136 or the shaft, housing and height dimensions. The team cross-checks the designation against the manufacturer's data and can suggest alternatives within the DBH line or from other brands supplied. Advice on the Lx design and its variants is available based on the lubricant and working conditions.

To request a quote for the DBH 5136 oil seal or to ask about other sizes, reach the team on WhatsApp or by email. MR Industrial Accessories serves customers across the United States and in several Latin American countries, and can help confirm the right seal for your application.