DBH 8427 radial shaft seal — 52 x 66 x 7.5/12

DBH 8427 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 8427 and any equivalents.

Part 8427 from DBH is a radial shaft lip seal built to hold lubricant inside a housing while keeping dust, water and other particles out. It fits a 52 mm shaft, a 66 mm bore and a height of 7.50/12.00 mm, and it carries the A 103 design. MR Industrial Accessories supplies it within its seals and oil seals range for rotating equipment.

Reading the code helps when you compare it against the part you are replacing. The 8427 identifies the item, DBH is the brand, and A 103 describes the construction: a metal outer body with a sealing lip. The three figures follow the usual order for this type of seal, shaft first, then housing bore, then height. Here that means shaft 52 mm, housing 66 mm and height 7.50/12.00 mm. Because the height is given as a range, the seal can sit in housings of different depths within those limits.

Seals of this size turn up in gearboxes, pumps, electric motors, reducers and other power transmission assemblies. Their job is to keep oil or grease where it belongs and to stop contaminants from reaching bearings and gears. You will also find them on agricultural machinery, earthmoving equipment and process lines where shafts run continuously with permanent lubrication. The compact section suits tight mounting spaces, provided the bore and shaft match the seal being replaced.

Before ordering, check three things: the shaft diameter, the housing bore and the depth available. The shaft needs to be 52 mm, the bore 66 mm, and the mounting height has to fall between 7.50 and 12.00 mm. Look over the shaft surface for burrs, scratches or dirt, and make sure the housing is not deformed. Lubricate the lip before pressing the seal in and use a proper installation tool so the lip is not damaged. For equipment running at high speed or temperature, contact our team to review the lip material.

If you are cross-referencing the 8427, send the code along with the shaft and housing dimensions you measured. Details about the equipment, the lubricant in use and the operating conditions also help. With that information we can look for an alternative in the same radial seals category or propose a compatible replacement. When the old seal carries a different designation, a photo or drawing is usually enough for us to identify the right part.

To ask about the DBH 8427 or any other size, message us on WhatsApp or by email with the code 8427. We answer promptly and can suggest equivalents or help you choose.