DBH 5261Sil radial shaft seal — 25.4 x 38.07 x 6.35

DBH 5261Sil 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 5261Sil and any equivalents.

A radial shaft seal from the DBH line, the 5261Sil keeps lubricant inside the housing and keeps dust, water and other contaminants out. It closes the gap between a rotating shaft and a stationary housing, so the lip rides on the shaft while the outer case stays pressed into the bore. The size is given as 25.40 mm shaft, 38.07 mm housing and 6.35 mm height, and the design is Lz. MR Industrial Accessories supplies this brand and helps customers confirm the right seal for their equipment.

The code 5261Sil identifies a DBH seal built to the Lz design, which means a sealing lip with a spring and a metal outer body. That construction suits rotating shafts that run with continuous lubrication. The elastomer lip contacts the shaft surface, and the metal case holds the seal in place through an interference fit in the housing bore. Because the lip wears over time, the seal is treated as a replacement item: once oil starts escaping or contaminants begin entering, it is swapped out.

Sizes of this kind turn up in gearboxes, gearmotors, centrifugal pumps, compressors, fan shafts and belt or chain drives, as well as machine tools, conveyors and process equipment where the lubricant has to stay separate from the surrounding environment. The dimensions are inch values converted to millimeters, so this seal is often found in imported machinery and in equipment whose shafts follow the inch system.

Before fitting a new seal, inspect the shaft race. Wear, scoring or corrosion will prevent the lip from sealing even when the size is correct. Check that the housing is concentric and properly finished, and apply lubricant to the lip before pressing the seal in so it is not damaged. Install it with the lip facing the lubricant side and seat it using a tube of the right diameter rather than striking the elastomer. Where vibration or temperature is high, consider a more resistant compound.

If you are looking for a replacement, send the code 5261Sil or the shaft, housing and height measurements of the seal you are removing. A photo of the part and the housing, or the equipment drawing, also helps. With that information we check the DBH line and other compatible options and prepare a quote. When the original seal is no longer obtainable, we can look at a substitute with the same shaft and housing diameters and adjust the height if there is room.

MR Industrial Accessories supplies the DBH brand. For a quote on the 5261Sil seal, or to ask about an equivalent size, send the code and dimensions by WhatsApp or email and the team will respond with the option that fits your equipment.