DBH 9517/85 radial shaft seal — 40 x 56 x 8.5

DBH 9517/85 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 9517/85 and any equivalents.

The DBH 9517/85 is a radial shaft seal that keeps lubricant contained and blocks contaminants from entering rotating assemblies. It fits a 40 mm shaft, a 56 mm housing bore and has an 8.50 mm height, making it suitable for crankcases, gearboxes and pumps where a shaft turns inside a stationary housing. The Lt version uses a single lip with a spring. MR Industrial Accessories supplies this brand and helps you confirm the correct seal for your equipment.

This lip seal carries the DBH brand and the reference 9517/85. Its three key dimensions are shaft 40 mm, housing 56 mm, width 8.50 mm. The Lt designation indicates a single-lip seal with a spring, intended for rotating shafts that receive lubrication. You can use the 9517/85 code to cross-check against other seals with the same profile and dimensions. The seal works through direct contact with the shaft surface.

Common places to find this seal include gearboxes, electric motors, centrifugal pumps, mixers and transmission units. In these applications, it stops oil or grease from leaking out and keeps dust and moisture away from bearings. Machine tools and continuous-process equipment also use it, especially when preventive maintenance calls for replacing seals before they fail. The 40 x 56 x 8.50 mm size appears frequently on medium-duty power transmission shafts.

For proper installation, confirm that the shaft has the correct hardness and surface finish, and that the housing bore is clean and free of burrs. Apply lubricant to the lip before pressing the seal into place and avoid impact during fitting. When selecting a seal, consider shaft speed, operating temperature and the lubricant type. If the old seal failed, inspect the shaft and housing for wear or runout, since either condition can shorten the life of any seal.

If you need a replacement, send the code 9517/85 or the dimensions 40 x 56 x 8.50 mm. You can also provide the old seal number or measurements taken with a caliper. At MR Industrial Accessories, we compare that information against manufacturer data and suggest alternatives from the same brand or other lines we carry, so you avoid ordering a seal that does not fit.

To request a quote for the DBH 9517/85, send the code by WhatsApp to MR Industrial Accessories. We confirm the reference and dimensions. If you have questions about installation or compatibility, our technical team helps you validate the choice before you buy.