Radial shaft seal DBH 8777 — 20.00 x 34.00 x 7.00

DBH 8777 is a radial shaft seal reference, within Seals. Request a quote for 8777 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8777 oil seal is a single-lip radial seal fitted on rotating shafts to retain oil or grease and prevent dust and water from entering. Its dimensions are 20 mm shaft diameter, 34 mm housing diameter and 7 mm height, with Lx design. It is used in gearboxes, pumps, electric motors and power transmission equipment. MR Accesorios Industriales sells this brand and advises you so you choose the right seal for your application.

This item is a DBH 8777 radial shaft seal, identified by part number 8777. Its standard dimensions are 20.00 mm shaft diameter (d), 34.00 mm housing diameter (D) and 7.00 mm height (h). The Lx design corresponds to a single sealing lip with spring, without an external dust lip, suitable for applications where the seal is mounted on a shaft rotating inside a fixed housing. DBH is a brand that MR sells, so you can ask us about this size.

Typical applications for this oil seal include gearboxes, centrifugal pumps, electric motors, compressors and power transmission equipment. In all cases, the seal retains lubricant inside the mechanism and prevents external contaminants such as dust, water or metal particles from entering. It is a wear part that should be replaced when leaks or abnormal noises appear in the sealing area.

To install the seal correctly, check that the shaft has adequate hardness and roughness, with no burrs or marks that could damage the lip. Lubricate the lip with the same oil or grease used in the application before inserting it. The housing must be clean and free of deformation. The 7 mm height allows it to be fitted in shallow cavities. If the shaft shows wear, consider using a seal with the lip in a different position or a repair sleeve.

If you need an equivalent seal or a nearby size, the most practical approach is to send us the full part number (8777) or the current dimensions: shaft diameter, housing diameter and height. With that data we can look for alternatives in the same brand or in others we sell. We can also advise you on the lip type, elastomer material and working temperature for your equipment. Do not hesitate to ask us about variants with a dust lip or double lip if your application requires it.

To request a quote for this DBH 8777 oil seal or ask about a similar size, send us the part number on WhatsApp at MR Accesorios Industriales. We will reply with the options and technical data you need for your maintenance.