DBH 9719 radial shaft seal — 47.7 x 72.95 x 12

DBH 9719 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 9719 and any equivalents.

A radial shaft seal such as the DBH 9719 keeps oil or grease where it belongs: inside the assembly, between a turning shaft and its housing. Its three reference measurements are shaft 47.70 mm, housing 72.95 mm and height 12.00 mm, and it comes in the Kx design. Gearboxes, pumps and transmission equipment are the usual places this size turns up. MR Industrial Accessories supplies it as a brand item.

The item is identified by designation 9719. When you read a seal code, the numbers behind it are what let you match the part to the bore and the shaft, so always compare d, D and h against the hardware in front of you. The Kx designation describes how the lip and the outer case are put together, a configuration meant to hold lubricant on a rotating shaft. The elastomeric lip rides on the shaft; the metal case stays press-fitted in the housing.

Treat it as a wear part. Once oil starts seeping past the lip, or the lip feels hard, cracked or scored, replacement is the practical move. Seals of this size are common in gearboxes, reducers, centrifugal pumps, electric motors and power transmission equipment, where they do the same job everywhere: retain the lubricant and keep dust, water and particles out. On moderate-speed shafts with little differential pressure they can also serve as a secondary closure. In dirty conditions or where equipment gets washed down often, it is worth looking at a version with an added dust lip.

Installation decides how long the seal lasts. Inspect the shaft first: no burrs, no worn groove, and roughness within what the lip can handle. The housing should be clean and undistorted. Seat the part squarely with a proper driver and never hammer on the lip. A light coat of the same oil used in the equipment, applied to the lip before fitting, helps at start-up. During selection, confirm that d, D and h match your shaft and housing, and that the lip compound suits the fluid and the operating temperature.

Need a substitute? Send code 9719 or the dimensions 47.70 x 72.95 x 12.00 mm and the team will help you locate the closest option. That could mean the same shaft diameter in a different height, or a design with a dust lip. Details such as the equipment, the fluid, the temperature and the speed make the search more precise. The goal is to keep a machine from sitting idle over a part that can be sourced.

MR Industrial Accessories supplies the DBH brand. To request a quote on the DBH 9719 seal, message us on WhatsApp with the code and we will reply with the information you need. Tell us what the seal is installed on and we can also advise on selection and installation.