DBH 9247 radial shaft seal — 25 x 40 x 8

DBH 9247 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 9247 and any equivalents.

Part of the seals and oil seals range that MR Industrial Accessories supplies, the DBH 9247 is a single-lip radial shaft seal. It seats in the housing and runs against the shaft, holding lubricant inside while keeping dust, water and particles out. The size is defined by three figures: shaft 25 mm, housing 40 mm, height 8.00 mm. That combination shows up often on gearboxes, pumps and electric motors.

The 9247 is the size reference inside the DBH line, and the Lr designation describes how the seal is built: one sealing lip with a spring, made for rotating shafts that stay lubricated. The three mounting values are shaft diameter 25 mm, housing diameter 40 mm and height 8.00 mm. Keep in mind what the part does: it retains oil and blocks contamination. It does not support any load, and it wears over time.

Where a shaft passes through a housing, this size is a frequent find: gearboxes, speed reducers, centrifugal pumps, electric motors, compressors and power transmission units, as well as fan shafts, mixers and machine tools. In every case the lip stays in contact with a machined running surface while the shaft turns.

Selection starts with confirming the shaft and housing measurements, then looking at the surface the lip rides on, the operating temperature and the lubricant in use. Never fit the lip dry; coat it with the same oil or grease the equipment runs on. The shaft should be free of burrs and deep scoring, and the housing clean and undistorted. When a seal has already failed, it pays to check bearing or bushing concentricity and play as well.

Need a different height or a design other than Lr? Send the code 9247 along with your current shaft and housing dimensions, and a match can be located in the same brand or in another line MR carries. Without the code, caliper readings plus a photo of the old seal are enough to work from.

The DBH brand is one of the lines in the MR Industrial Accessories seals catalog. To get a quote for this size or ask about an alternative, send the code 9247 by WhatsApp or email and the technical team will come back with the option that suits your equipment. For a seal that sits inside an assembly, sharing the drawing or the component list helps ensure nothing is missed.