DBH 9522/85 radial shaft seal — 20 x 35 x 8

DBH 9522/85 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 9522/85 and any equivalents.

A radial shaft seal from the DBH line, the 9522/85 keeps lubricant where it belongs and keeps contaminants out. It fits a 20 mm shaft, a 35 mm housing bore and an 8.00 mm height, and it uses a single-lip Lr design. Because it presses into the housing and rides on the shaft, the fit and the condition of both surfaces drive how well it seals.

Reading the code helps when you are cross-referencing. The 9522/85 designation identifies this seal within the DBH range, and the dimensions follow the usual order: shaft first, then housing bore, then height. Here that means 20 mm on the shaft, 35 mm in the bore and 8.00 mm of axial space. The Lr lip style suits compact assemblies where the shaft is small and there is not much room to work with. MR supplies this brand, so the part can be checked against the manufacturer's data sheet before you commit.

You will run into this size in small gearboxes, low-horsepower motors, centrifugal pumps, mixers, belt conveyors and similar power transmission equipment. Machine tools, compressors and lubrication circuits also use it wherever a shaft turns inside a stationary housing. In every case the seal draws the line between the oil or grease side and the open environment, so lubricant stays in and grit, water and dust stay out of the bearing or bushing behind it.

Installation is where most seal failures start. Confirm the shaft and bore match the dimensions before you press anything in, and look for burrs, deep scratches or a wear groove on the shaft. Lubricate the lip, then seat the seal with a flat-faced tube or socket that pushes on the metal case. Never drive it in by hitting the lip. If the shaft surface is already worn, an auxiliary lip may be worth evaluating. Speed, temperature and the fluid being sealed all factor into the final choice and should be checked against the data sheet.

Looking for an equivalent? Send the 9522/85 number together with the shaft, bore and height measurements, plus a photo of the old seal or the assembly drawing. With that in hand, an alternative from the same brand or another line MR carries can be matched while keeping the Lr design and the space you have. Sometimes a different height or a lip with more coverage solves the problem when the housing permits it.

For a quote on the DBH 9522/85, message MR on WhatsApp or by email with the part number and the quantity you need. If you are unsure about the size or want confirmation that it fits your equipment, include the shaft and bore dimensions and the team will help you validate the match before you order. Equivalent radial seals in the same category can also be suggested.