Radial shaft seal DBH 8742 — 50.00 x 68.00 x 7.00/9.00

DBH 8742 is a radial shaft seal reference, within Seals. Request a quote for 8742 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8742 radial shaft seal is a lip seal that mounts in the housing and seals against the rotating shaft to retain lubricant and block the entry of dust, water or particles. With dimensions of 50 mm shaft, 68 mm housing and a height of 7.00/9.00 mm, it is a common replacement part in gearboxes, pumps and power transmission equipment. MR Accesorios Industriales supplies it as part of its line of seals and oil seals for industrial maintenance.

The DBH 8742 is an A 171 design oil seal with the following dimensions: shaft diameter 50 mm, housing diameter 68 mm and total height 7.00/9.00 mm. The A 171 designation corresponds to a specific construction configuration within the radial shaft seal category, with a sealing lip and an outer case that fits into the housing. These dimensions allow replacement of worn seals in equipment where axial space is limited.

Seals of this type are used in gearboxes, electric motors, centrifugal pumps, rollers and transmission shafts. Their function is twofold: preventing oil or grease leaks to the outside and protecting the bearings from the entry of contaminants. In environments with dust, wash water or chips, a seal in good condition extends bearing service life and reduces downtime for corrective maintenance.

To install a radial shaft seal, check that the shaft has no burrs or wear and that the housing is clean and free of deformation. Lubricate the lip with the same grease or oil as the equipment before inserting it, and install the seal with a suitable press or installation tool, applying uniform force on the case. Avoid striking the sealing lip. If the shaft shows a deep groove, consider a nearby size or a design with an auxiliary lip.

If you need an oil seal equivalent to the DBH 8742, you can send us the full code or the shaft, housing and height dimensions. We can also look for a nearby size if the original is not available. We work with compatible alternatives and advise you on the most suitable design according to the speed, temperature and type of lubricant of your equipment.

MR Accesorios Industriales supplies the DBH brand as part of its range of seals and oil seals. To request a quote for the 8742 or ask about a similar size, send the code on WhatsApp and we will reply with the technical information and alternatives.