DBH 5705 radial shaft seal — 50.8 x 79.96 x 11.11

DBH 5705 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 5705 and any equivalents.

The DBH 5705 is a radial shaft seal that keeps lubricant inside a housing and keeps dirt out. It fits a 50.80 mm shaft, a 79.96 mm housing bore and an 11.11 mm width, so it drops into common metric housings. DBH is one of the brands MR supplies, and the 5705 code can be cross-referenced against other seals with the same three measurements.

Read the code in two parts. The 5705 identifies the size, while Lz describes the lip arrangement: a main sealing lip plus a dust lip. The elastomeric lip handles oil and normal operating temperatures, and the steel outer case holds the seal firmly in the bore. Get any of the three dimensions wrong and the result is usually a leak or a seal that wears out early.

You will find this size in gearboxes, centrifugal pumps, electric motors, compressors and power transmission equipment. In each case the seal protects bearings and gears by holding oil in and particles out. Machine tools and process lines also use it where a failed seal would stop production. The 50.80 mm shaft size appears on both domestic and imported medium-sized equipment.

Before ordering, measure the shaft and the housing bore and compare them with 50.80 mm and 79.96 mm. The Lz lip arrangement suits areas with moderate dust; if the surroundings are heavily contaminated, look at a seal with extra dust protection. Coat the lip with the same oil used in the unit, press the seal in square to the shaft and use a proper driver rather than a hammer. A worn shaft may need a repair sleeve.

If you are replacing a seal from another maker, send the 5705 code or your measured dimensions and the team can point you to a matching option. Installation tools and compatible lubricants are also available.

Send the code 5705 by WhatsApp or email and the team will come back with a quote. Photos of the housing and shaft help confirm the size when the old seal is unreadable.