DBH 9888Vit radial shaft seal — 44.45 x 66.57 x 12/23

DBH 9888Vit 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 9888Vit and any equivalents.

Part number 9888Vit is a radial shaft seal from the DBH line, built to hold lubricant in and keep contaminants out where a shaft rotates. Its A 332 configuration uses a metal case with a sealing lip, so it presses into a cylindrical housing bore. The stepped 12.0/23 mm height gives it some flexibility on housing depth, which helps in tight assemblies. MR supplies this seal and can help match it to your shaft and bore measurements.

Reading the designation is straightforward. The bore it fits measures 66.57 mm across the housing, the shaft it runs on is 44.45 mm, and the overall height is given as 12.0/23 mm. That stepped profile is what separates this seal from a single-height lip seal: it can sit in housings of more than one depth without changing the sealing lip geometry. The A 332 style is a press-fit design, so the housing bore has to be machined to the correct tolerance for the case to seat properly.

You will find this size of seal in gearboxes, pumps, electric motors, reducers and other rotating power transmission equipment. Its job is twofold: retain the oil or grease that lubricates the bearings, and block dust, water and particles from reaching the sealing surface. When a seal like this starts to weep or lets grit in, bearing and shaft wear follows, which is why it belongs on a preventive maintenance checklist rather than a run-to-failure list.

Installation practice matters as much as the part number. Clean the shaft and housing bore, and check both for burrs, scratches or a worn seal track before fitting anything. Coat the lip with the same lubricant the equipment uses, then press the seal in squarely with a tube or socket that contacts the metal case, not the lip. Driving it in at an angle or striking the lip will damage it before the machine ever runs.

Choosing a replacement means looking beyond the three main dimensions. Shaft speed, operating temperature and the fluid being retained all affect which seal compound and lip design will hold up. If 9888Vit is not the exact fit for your machine, send us the part number or your shaft and housing measurements and the team can point you to an equivalent size or a close variant from the seal lines we handle.

When you are ready to order, message the part number 9888Vit by WhatsApp or email and we will put together a quote. If you are unsure about compatibility, ask before you buy. Getting the dimensions and the application details right the first time saves a teardown later.