Radial shaft seal DBH 6900 — 70.00 x 90.00 x 13.00

DBH 6900 is a radial shaft seal reference, within Seals. Request a quote for 6900 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 6900 seal is a radial seal with 70 mm shaft diameter, 90 mm housing diameter and 13 mm height, in Lr design. It is used to retain lubricant and block the entry of dust, water or particles in equipment with a rotating shaft. It is a wear part: when oil loss or dirt ingress appears, it should be replaced. MR Accesorios Industriales supplies this brand and advises you on choosing the correct size.

The DBH 6900 is a single-lip radial shaft seal with the dimensions shown in its designation: 70 mm shaft diameter, 90 mm housing diameter and 13 mm height. The Lr design corresponds to the standard rubber-lip variant, intended for rotating shafts with lubrication. The lip rests on the shaft and closes the passage of oil outward; the outer body is press-fitted into the housing. It is a frequently replaced part in pumps, motors and gearboxes.

Typical applications for this seal size are in transmission and pumping equipment: gearboxes, electric motors, centrifugal pumps, mixers and fan shafts. It is also found in agricultural and industrial machinery where the lubricant must be separated from the environment. In all these cases it performs two functions: retaining the oil or grease and preventing the entry of dust, wash water or chips. If the equipment operates with a lot of dirt, the condition of the lip should be checked more frequently.

To install a seal, three points must be taken care of: the shaft must have no burrs or marks, the housing must be clean and free of deformation, and the lip must be lubricated before entering. The seal is positioned with the lip facing the lubricant side and is pressed in with a tube or spacer that pushes on the outer ring, never on the lip. If the shaft shows wear in the contact area, the new seal may not seal: in that case a repair sleeve must be considered or the shaft replaced.

If you need an equivalent or a nearby size, the most practical approach is to send us the code engraved on the old seal, the shaft and housing dimensions, and a photo of the part. With that data we can verify whether the DBH 6900 matches or whether a different height or design is needed. The machine code or drawing number also works. The seal does not need to be in good condition: the marks on the lip and ring help identify the variant.

MR Accesorios Industriales supplies the DBH brand. If you want to confirm the size or request an alternative, send the code 6900 by WhatsApp and we will reply with the quote. We can also review the assembly together: shaft, housing and lubricant, so that the seal lasts as long as it should.