DBH 9139 radial shaft seal — 40 x 54 x 7

DBH 9139 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 9139 and any equivalents.

The DBH 9139 radial shaft seal is a lip seal for rotating shafts, with a 40 mm shaft, 54 mm housing bore, and 7 mm width. Its Lx design includes a main sealing lip and a dust lip, offering protection against lubricant leaks and contaminants. This seal helps maintain bearing and power transmission life in industrial equipment.

Part number 9139 from DBH is a radial shaft seal. The dimensions are shaft 40 mm, housing 54 mm, and width 7 mm. The Lx designation means it has a primary sealing lip and a secondary exclusion lip, adding a barrier against external particles. It uses high-resistance elastomers and a metal spring for even pressure on the shaft.

Common uses include gearboxes, pumps, electric motors, speed reducers, and drive shafts. The seal keeps oil or grease in and blocks dust, water, or chips from reaching the bearing or lubrication area. It is often found in industrial equipment, agricultural machinery, and conveying systems.

During installation, check that shaft and housing sizes match. The shaft should be free of burrs, scratches, or excessive wear; otherwise, the lip may not seal. Lubricate the lip with the same oil or grease used in the equipment, then press the seal in with a suitable tool, applying even pressure on the outer circumference. Do not strike the sealing lip. If the housing is worn, consider a seal with a larger outer diameter or a repair sleeve.

For an equivalent seal, contact us via WhatsApp or email. We can suggest alternatives from other brands or with slight dimensional variations that maintain sealing performance. We also help select the lip material (nitrile, Viton, polyurethane) based on temperature and the fluid to be retained.

To request a quote for the DBH 9139 seal, send part number 9139 via WhatsApp or email. We reply promptly. If you have questions about the application, our team can help confirm this model fits your equipment.