Radial shaft seal DBH 9766/85 — 20.00 x 40.40 x 6.00

DBH 9766/85 is a radial shaft seal reference, within Seals. Request a quote for 9766/85 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9766/85 radial shaft seal is a lip seal that prevents oil or grease leaks and blocks dust and moisture from entering rotating shafts. Its A 120 design and dimensions of 20 mm shaft, 40.40 mm housing and 6 mm height make it suitable for equipment where axial space is limited and a reliable seal is required. MR Accesorios Industriales offers it as part of its seals and oil seals line for industrial maintenance.

This item is a radial shaft seal, identified with the designation 9766/85 and design A 120. Its standard dimensions are: shaft diameter 20 mm, housing diameter 40.40 mm and height 6.00 mm. The A 120 design corresponds to a seal with a single sealing lip and spring, intended for rotating shafts with permanent lubrication. DBH manufactures it under standard tolerances for general industrial applications.

It is used in gearboxes, pumps, electric motors, compressors and power transmission equipment where lubricant must be retained and bearings protected. It also appears in machine tools, conveyors and low-pressure hydraulic systems. It is commonly found on fan, mixer and agitator shafts operating in environments with moderate dust or moisture.

For installation, verify that the shaft has the appropriate hardness and surface finish, with no burrs or scratches in the contact area. The housing must be clean and have the exact diameter of 40.40 mm to prevent deformation. Lubricate the lip before inserting it and use an installation tool that presses on the outer ring, never on the lip. If the shaft shows wear, consider a seal with an auxiliary lip or a wear sleeve.

If you need a nearby size or an equivalent from another brand, send us the code 9766/85 or the shaft, housing and height dimensions. With that data we can look for alternatives in our DBH oil seal line or other brands we carry. We can also advise you on the most suitable lip design according to the type of lubricant and rotation speed.

To request a quote for this seal or ask about a specific application, send the code 9766/85 via WhatsApp to MR Accesorios Industriales. We will reply with the alternatives that best fit your equipment. Our technical team can help you select the correct seal and avoid premature failures.