Radial shaft seal DBH 1239 — 57.20 x 92.00 x 18.00

DBH 1239 is a radial shaft seal reference, within Seals. Request a quote for 1239 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 1239 radial shaft seal is a lip seal that mounts on the shaft and seals against the housing to retain lubricant and block the entry of dust, water or particles. Its dimensions of 57.20 mm shaft, 92 mm housing and 18 mm height place it in medium-sized equipment, where axial space is limited and a reliable seal is required. It is a wear part: when the lip hardens or marks the shaft, it should be replaced before the damage progresses.

This item is a radial shaft seal from the DBH line, identified with the code 1239. Its nominal dimensions are 57.20 mm shaft diameter, 92 mm housing diameter and 18.00 mm height. The Kx design corresponds to a single lip configuration with spring, intended for rotating shafts with permanent lubrication. The designation 1239 is the one you need to provide so we can confirm the exact part against the manufacturer's data sheet.

Seals of this size appear in gearboxes, centrifugal pumps, mixers, screw conveyors and process equipment in general. They are also used in medium-sized electric motors and in rollers of agricultural or road machinery. In all cases they perform the same function: keeping oil or grease inside the assembly and preventing the entry of contaminants that accelerate the wear of bearings and gears.

To select a seal properly, the dimension alone is not enough: the peripheral shaft speed, working temperature, type of lubricant and differential pressure all matter. The Kx design with spring is suitable for rotating shafts with low pressure; if the equipment works under pressure or with a lot of dust, another configuration should be evaluated. During installation, lubricate the lip, verify that the shaft has no burrs or grooves, and tap the seal evenly and perpendicular to the housing.

If code 1239 is not the one you need, we can look for a neighboring size or an equivalent from another brand. Send the shaft diameter, the housing diameter and the height, or directly the code that appears on the old part. A photo of the seal next to a caliper also works. With that data we review alternatives within the DBH line and the other brands we carry.

MR Accesorios Industriales is an official brand that MR carries from DBH and has more than 80 years in the industry. Send the code 1239 or the dimensions via WhatsApp and we will quote the seal with the corresponding technical confirmation. If needed, we help you define the most suitable design for your application.