DBH 6690Pol radial shaft seal — 30 x 42 x 7

DBH 6690Pol 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 6690Pol and any equivalents.

The DBH 6690Pol is a radial shaft seal with an Lz-R profile, sized for a 30 mm shaft, a 42 mm housing bore, and a 7.00 mm width. It keeps lubricant in and contaminants out of rotating equipment. MR Industrial Accessories supplies this brand and helps you confirm the right reference or an equivalent.

This seal carries the DBH designation 6690Pol. Its dimensions are: shaft 30 mm, housing 42 mm, width 7.00 mm. The Lz-R design uses a sealing lip with a spring, a common configuration for rotating shafts. Because MR supplies the DBH line, you can send us this reference and we will check it against your application.

Typical installations include gearboxes, pumps, electric motors, line shafts, and process machinery. The seal performs two jobs: it holds oil or grease inside the assembly and blocks dust, water, and particles from entering. In dirty, wet, or washdown-heavy areas, a healthy seal protects bearings and gears from premature wear. Treat it as a wear item and replace it during scheduled maintenance.

When fitting a 30 x 42 x 7 mm seal, inspect the shaft for burrs or a worn track and make sure the housing bore is clean and round. Apply a light film of the same lubricant used in the equipment to the lip. Press on the outer face only, never on the lip. If the shaft shows a deep groove, ask about an alternative profile before reinstalling.

To find a replacement for the 6690Pol, send the full part number, the shaft, housing, and width dimensions, and a photo of the original seal if you have one. With that information we review options in the DBH line and other brands we carry. We can also quote seals for the remaining positions on the same machine.

For a quote on the DBH 6690Pol, message the part number to MR Industrial Accessories on WhatsApp or by email. We reply promptly and can suggest equivalents or help you choose the correct seal for your equipment.