Radial shaft seal DBH 1129

DBH 1129 is a radial shaft seal reference, within Seals. Request a quote for 1129 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 1129 oil seal is a radial shaft seal in the A 371 design, intended for 90 mm shafts and heights from 10 to 12 mm. Its function is to retain lubricant and exclude contaminants in rotating equipment, protecting bearings and guides. It is a common replacement part in industrial maintenance, where correct selection prevents leaks and premature wear. MR Accesorios Industriales carries this official brand and advises you so you can choose the right oil seal for your application.

This DBH 1129 oil seal is identified by its designation and by the dimensions you need to verify before ordering it: shaft diameter 90 mm, lip height 10.00/12.00 mm and design A 371. If you need to confirm the outer D, ask us with the code 1129 and we will verify it against the manufacturer's data sheet.

Radial shaft seals such as this one are used in gearboxes, pumps, electric motors, rollers and transmission equipment. Their single- or double-lip design, depending on the series, retains oil or grease and prevents the ingress of dust and water. In environments with vibration or moderate temperature, a well-chosen oil seal reduces downtime due to leakage and extends bearing life. It is a relatively low-cost part but critical to the reliability of the assembly.

To install a radial shaft seal, check that the shaft has no burrs or wear and that the housing is clean and free of marks. Lubricate the lip with the same service oil or grease before inserting it. The 10/12 mm height indicates that height variants within that range can be accommodated; choose the one that matches the housing depth. If the shaft shows a worn track, consider a seal with an auxiliary lip or a repair sleeve.

If you cannot find code 1129 or need a nearby size, send us the data of the original oil seal: shaft diameter, outer diameter and height. With those values we look for an equivalent in DBH or another brand we carry. We can also offer alternatives with a different lip material (nitrile, Viton) depending on temperature and fluid. The idea is that you are not left with equipment down for a part that can be sourced.

To request a quote for the DBH 1129 oil seal or ask for an equivalent, write to us on WhatsApp and send us the code 1129 along with the dimensions of your equipment. At MR Accesorios Industriales we reply with the appropriate option and arrange shipping. More than 80 years supporting Argentine industry with bearings, seals and power transmission.