Radial shaft seal DBH 1225/85 — 37.00 x 50.00 x 11.00

DBH 1225/85 is a radial shaft seal reference, within Seals. Request a quote for 1225/85 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 1225/85 oil seal is a single-lip radial shaft seal that mounts on rotating shafts to retain oil or grease and keep out dust and water. With its dimensions of 37 mm shaft, 50 mm housing and 11 mm height, it is a common size in gearboxes, pumps and medium-sized electric motors. MR Accesorios Industriales supplies this official brand and advises you so you choose the right seal according to the type of lubricant and the working conditions.

This item is a radial shaft seal from the DBH line, identified by the code 1225/85. Its dimensions are 37 mm shaft diameter (d), 50 mm housing diameter (D) and 11.00 mm height (h). The Lr design corresponds to a single sealing lip with spring, intended for shafts that rotate in one direction and with permanent lubrication. The elastomeric lip bears on the shaft and the spring maintains contact pressure, while the outer body is press-fitted into the bore. It is a wear part that should be replaced at the first sign of leakage.

Typical applications for this size include gearboxes, centrifugal pumps, electric motors, compressors and transmission equipment where the lubricant must be separated from the environment. It is also used in agricultural machinery, conveyors and continuous process equipment. Being a 37 x 50 x 11 mm size, it usually appears on shafts with a nominal diameter of 35 to 40 mm with standard housings. If the equipment works with a lot of dirt or water, it is worth evaluating a version with an additional dust lip.

To install this seal, check that the shaft has no burrs or deep marks on the sealing track and that the housing is clean and free of deformation. Lubricate the lip with the same oil or grease as the equipment before inserting it, and fit the seal with a support tube that bears on the metal edge, never on the lip. The 11.00 mm height must match the housing; if the space is different, a neighboring size must be found. The working speed and temperature are confirmed against the manufacturer's data sheet.

If you need an equivalent or a close size, send us the code 1225/85 or the dimensions 37 x 50 x 11 mm via WhatsApp. You can also send the code engraved on the old seal or a photo of the part. At MR Accesorios Industriales we check the request against the manufacturer's data sheet to confirm the design and material before quoting. If the shaft is worn, we advise you on mounting alternatives or repair sleeves.

MR Accesorios Industriales supplies the DBH brand as part of its line of seals and oil seals. With more than 80 years in the industry, we bring experience in the selection of sealing parts for industrial equipment. If you have doubts about compatibility with your equipment, write to us on WhatsApp and we will help you define the best option.