DBH 1305/85 radial shaft seal — 150 x 165 x 9/12

DBH 1305/85 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 1305/85 and any equivalents.

When a large shaft starts weeping oil, the seal is usually the first suspect. The DBH 1305/85 is a radial shaft seal built for exactly that job: holding lubricant in and keeping dust, water and grit out of the bearing cavity. Its dimensions are 150 mm shaft, 165 mm housing and 9/12 mm height, with the A 429 lip design. MR Industrial Accessories supplies it as part of its seals and oil seals line.

Reading the code helps you order the right part. The 1305/85 designation identifies this DBH seal, and the three figures that matter are d = 150 mm, D = 165 mm and h = 9/12 mm. The A 429 design means a single lip with a spring, made for lubricated rotating shafts. The split height figure tells you something useful at the bench: the metal case is 9 mm tall, while the sealing lip reaches 12 mm from the back face. That lets it sit in a shallow housing bore without losing contact on the shaft.

You will find this size in gearboxes, centrifugal pumps, electric motors, conveyor rollers and power transmission equipment. Its job in every one of those spots is the same: stop grease or oil from escaping and stop dust, water and particles from reaching the bearings. Because the bore is large, it fits heavy machinery, mills, industrial mixers and mining or cement equipment. It suits shafts turning at moderate speeds where the working temperature stays inside the limits of the standard elastomer.

Selection and installation decide how long the seal lasts. Check that the shaft diameter falls within the usual tolerance for radial seals, h11 or similar, and that the housing bore finish is appropriate for the outer diameter. Press the seal in with a tool that applies even force on the outer edge, never on the lip. Lubricate the lip with the same oil or grease the equipment runs on before you slide it over the shaft. If the shaft is worn or grooved, look at an auxiliary lip or a wear sleeve instead. Shaft-to-housing alignment matters as much as the part itself.

Need a replacement or an equivalent? Send the full code 1305/85, or simply the shaft, housing and height measurements. With that, the team can check alternatives in the same DBH line or in other brands we carry, and tell you whether a standard-height or double-lip variant fits your mounting space. The exact designation is still the safest way to avoid a wrong part, so send it by WhatsApp or email and the reply comes back quickly.