DBH 9986 radial shaft seal — 108 x 154 x 14/16

DBH 9986 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 9986 and any equivalents.

For maintenance teams working on large-shaft equipment, the DBH 9986 oil seal is a single-lip radial shaft seal that keeps lubricant in and contaminants out. It fits a 108 mm shaft and a 154 mm housing, with a 14.0/16 mm height. The A 094 design places it in the reinforced-section family, so it is often found in gearboxes, pumps, motors and other power transmission drives.

You can read the DBH 9986 code from the dimensions: 108 mm shaft, 154 mm housing, and a 14.0/16 mm height. The 9986 number identifies the seal, while A 094 refers to its design. The two height figures mean the outer lip can sit at either of two positions in the housing, depending on whether a shoulder is present. The lip runs against the shaft, and the outer diameter holds by interference in the bore. This is a solid replacement seal, not a split type.

Seals like this one appear on large rotating shafts: speed reducers, mills, mixers, centrifugal pumps, industrial fans and continuous-process lines. Heavy conveyor rollers and gearboxes that must hold oil also use them. Their job is twofold: stop lubricant from escaping and keep dust, water and particles from reaching bearings and gears. In humid or dusty plants, the seal is the first line of defense.

Before ordering, confirm that your shaft and housing diameters match the catalog values. Check that the 14.0/16 mm height fits the cavity without distortion, and note the lip orientation if a shoulder is present. During installation, coat the lip with the same oil or grease used in the machine, use a support tube to press it in evenly, and avoid impacts. A nicked lip or a shaft with splines or scratches will leak even when the seal is new, so also check axial play on the shaft.

If you need an alternative, send code 9986 together with the shaft, housing and height dimensions. A photo of the old seal or the housing drawing also helps. From that data, we can look at options in the same brand or in other seal lines we supply. A different lip profile may work as long as the mounting dimensions stay the same. The goal is to keep your equipment running without a long stop.

MR Industrial Accessories LLC supplies the DBH brand as part of its seals and oil seals range. To request a quote for the DBH 9986, contact us on WhatsApp and include the code and dimensions. We can confirm alternatives with no obligation. If you have questions about installation, we can also advise you.