DBH 1252 radial shaft seal — 38 x 59 x 8/13.5

DBH 1252 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 1252 and any equivalents.

When a shaft passes through a housing, the DBH 1252 radial shaft seal keeps lubricant where it belongs and keeps dust, chips and water out. The code 1252 identifies a seal built for a 38 mm shaft, a 59 mm bore and a height of 8.00/13.50 mm, in the A 308-R AH design. Maintenance and purchasing teams specify it for gearboxes, pumps, motors and similar rotating equipment, where bearings and gears depend on that barrier. MR supplies this brand and can review your application with you.

Reading the designation helps you match the part to the job. The 1252 series points to the DBH seal family, while the three figures give the fit: d for shaft diameter, D for housing bore, h for height. Here d is 38 mm, D is 59 mm and h is 8.00/13.50 mm. The A 308-R AH design covers a sealing lip plus a stepped height, so the same seal can sit in housings of different depths. Elastomer and a metal case make up the construction, which is what gives it wear and temperature resistance.

Where does it earn its place? Gearboxes and speed reducers, centrifugal pumps, electric motors, compressors and machine tools all rely on a seal at the shaft exit. In each case the DBH 1252 closes the gap between shaft and housing, holding oil or grease in and keeping contamination out. Plants with dust, metal chips or moisture put the most demand on that barrier, since bearings and gears are the parts that suffer first when it fails.

Installation rewards a little care. Confirm the shaft and bore are clean, free of burrs and scratches, and measure them against 38 mm, 59 mm and 8.00/13.50 mm before you press anything in. Coat the lip with the same lubricant used in the equipment, then seat the seal with a proper driver so the lip is not nicked or rolled. If the shaft turns fast or runs hot, ask MR which lip material suits the conditions. Shaft speed, pressure and lubricant type all belong in the selection decision.

If the original code is not available, we can still help. Send the 1252 reference, your shaft and housing dimensions, and a photo of the part if you have one; with that we look for alternatives in other brands that do the same job, and we can walk you through the A 308-R AH design and its variants. Quotes and equivalent requests go through WhatsApp or email, and the team answers promptly. Bearings, housings, power transmission parts and other industrial supplies are also part of what we carry.