Radial shaft seal DBH 5311Sil — 20.00 x 42.00 x 10.00

DBH 5311Sil is a radial shaft seal reference, within Seals. Request a quote for 5311Sil via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 5311Sil radial shaft seal is a lip seal designed for 20 mm rotating shafts, with a 42 mm housing and 10 mm height. Its function is to retain lubricant inside the assembly and block the entry of dust, water or particles that accelerate wear on bearings and bushings. It is press-fitted into the housing and runs against the shaft surface, which must be ground and lubricated. It is a common replacement part in electric motors, pumps, reducers and power transmission equipment.

This item is a seal with an Lx design, with the dimensions indicated in the designation: shaft diameter 20 mm, housing diameter 42 mm and height 10 mm. The Lx design corresponds to a single-lip seal with a spring, designed for rotating shafts with permanent lubrication. The DBH brand is an official brand that MR carries, so the product is identified by its code 5311Sil and is confirmed against the manufacturer's product page at the time of quoting.

Typical applications for this seal include low- and medium-power electric motors, centrifugal pumps, gearboxes, fan shafts and belt- or chain-driven transmission equipment. In all cases, the seal protects nearby bearings or bushings from external contamination and prevents oil or grease leaks. It is also used as a closure in machine tools, conveyors and agricultural equipment, where dust and moisture are present.

For correct installation, verify that the shaft has no burrs or marks and that the sealing surface is polished. Lubricate the lip with the same oil or grease used in the equipment before inserting the seal. The housing must be clean and free of deformation; place the seal perpendicular to the shaft and with uniform pressure, without striking the lip. If the shaft shows wear, consider a neighboring size or a seal with a greater height to change the contact track.

If you need an equivalent or a different size, send us the code 5311Sil or the current dimensions (shaft, housing and height) and the type of application. With that data we can look for an alternative within the DBH line or other brands we carry, respecting the design and material. We can also advise you on installation if you tell us how the assembly is put together and what its working conditions are.

To request a quote for this seal or ask about a similar size, send the code 5311Sil on WhatsApp to MR Accesorios Industriales. We will reply with the purchasing options. If you have questions about installation or selection, our technical team can help you choose the best solution for your equipment.