DBH 5138 radial shaft seal — 15 x 30 x 7

DBH 5138 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 5138 and any equivalents.

Part of the seal range that MR Industrial Accessories supplies for maintenance work, the DBH 5138 is a radial shaft seal that keeps lubricant inside a housing and keeps dust, water and other particles out. Its designation reads 15 mm at the shaft, 30 mm at the housing bore and 7 mm in height, with the Lx lip design. Gearboxes, pumps, electric motors and power transmission units are the usual places this seal turns up.

The code 5138 belongs to the DBH line of radial shaft seals. Reading the size: shaft 15.00 mm (d), housing 30.00 mm (D), height 7.00 mm (h). The Lx designation describes a single lip with a spring, made for rotating shafts that run with lubrication. Before you pull a worn seal, measure the shaft and the bore and check them against those three figures.

Where oil or grease has to stay in and contamination has to stay out, this kind of seal does the job. You will find them in gearboxes, centrifugal pumps, electric motors, compressors, mixers and conveyors. In food, chemical and process plants, the fluid and the operating temperature decide which lip material and elastomer are suitable, so it is worth confirming those details with the manufacturer or with your technical supplier.

Installation matters as much as the part. The shaft should be clean and free of burrs or marks, and the housing needs a proper chamfer so the lip is not cut on the way in. Coating the lip with the same oil or grease used in the equipment helps seating, and a mandrel or support tube lets you press the seal in evenly. Shaft eccentricity and bearing play both affect how long a seal lasts, so check them while the machine is open.

For a quote, send the full code along with the shaft, housing and height dimensions, plus a photo or the old seal as a sample. That information lets us search alternatives in the DBH line or among the other brands we carry, and advise on lip type, material and spring for the application. Quotes are handled by WhatsApp or email, and the team can also suggest equivalents and help you choose.