DBH 5725 radial shaft seal — 63.5 x 90 x 11.9

DBH 5725 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 5725 and any equivalents.

Code 5725 identifies a DBH radial shaft seal that keeps lubricant inside a housing while blocking dust, water and particles from reaching the bearing area. It fits a 63.50 mm shaft, a 90.00 mm housing bore and an 11.90 mm width, and its Lz design is a single lip with a spring for shafts that turn continuously under permanent lubrication. MR Industrial Accessories supplies it within its seals and oil seals range.

Reading the number is straightforward: the 5725 reference is what appears on the manufacturer's listing and what you should quote when reordering. The dimensional sequence runs shaft first, then housing bore, then width — 63.50 mm, 90.00 mm and 11.90 mm respectively. Match all three against the old part before you commit to a replacement.

Seals in this size range show up in gearboxes, centrifugal pumps, electric motors, conveyor rollers and other power transmission assemblies, as well as in agricultural and road machinery and process lines. Wherever a shaft rotates through a housing and oil or grease has to stay separated from the surrounding environment, this is the component doing that job. In dirty or wet conditions it is the first line of defense for the bearings behind it.

Installation decides how well it performs. Check that the shaft sits within tolerance and that the lip contact zone is free of burrs, scoring or wear grooves. The housing bore should be clean and undistorted. Coat the lip with lubricant before pressing the seal in, and drive it with a flat tool that contacts the outer diameter only — never the lip itself. A shaft with play or a rough surface will leak regardless of how accurate the size is.

To get a quote, send the shaft diameter, housing bore and width through WhatsApp or email, and include a photo of the old seal if you have one. From that we can locate an equivalent in DBH or in another brand we carry, and confirm whether the Lz lip type suits your application or whether a different lip configuration would serve better. If you already have code 5725, quote it directly and our team will respond promptly.