DBH 1121Pol radial shaft seal — 42 x 58 x 11

DBH 1121Pol 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 1121Pol and any equivalents.

The DBH 1121Pol is a radial shaft seal built to hold lubricant in place and keep dirt out of rotating assemblies. Its three key measurements are a 42 mm shaft, a 58 mm housing bore and an 11 mm width, and it carries the A 368-R AH design designation. You will typically find it on gear reducer boxes, pumps, motors and transmission equipment. MR Industrial Accessories supplies this brand and can help you confirm the right seal for the job.

Reading the code helps you match the part quickly. The 1121Pol number identifies the item within the DBH line, while A 368-R AH describes how the seal is built: a sealing lip combined with a defined metal body configuration, intended to retain oil or grease along a rotating shaft. Confirm that designation against your old part or your equipment documentation before ordering.

The three figures to check are shaft 42 mm, housing 58 mm and width 11 mm. All three have to line up with the shaft and the cavity, and the 11 mm width must seat in the bore without being forced. Seals in this family see service in gearboxes, centrifugal pumps, electric motors, rollers and other power transmission assemblies, where they hold lubricant inside and block dust, water and particles that would otherwise reach the bearings. They suit low differential pressure and continuous rotation, as long as speed and temperature stay compatible with the lip material.

Installation practice matters as much as the dimensions. Coat the lip with the same oil or grease used in the application, press the seal in square to the shaft, and keep tools away from the lip itself. If the shaft shows wear, grooves or a rough finish, a repair sleeve or a different size may be the better route.

For an equivalent, send the code 1121Pol or your shaft and housing measurements through WhatsApp or email. MR can search alternatives within the same brand or other lines we supply, keeping dimensions and design type intact. Diameters, width, lubricant type and operating conditions all help narrow the proposal, and our team replies promptly.

Quotes are handled by part number: send the full code and we will take it from there. If anything is unclear, a photo of the old seal or the shaft and housing dimensions is enough for us to verify the match.