DBH 5689 radial shaft seal — 34.93 x 63.55 x 12.7

DBH 5689 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 5689 and any equivalents.

A rotary shaft lip seal built to hold lubricant in place and keep outside contamination away from the bearing cavity, the DBH 5689 is specified by three figures: 34.93 mm at the shaft, 63.55 mm at the housing bore, and 12.70 mm of axial height. That short height helps where the housing pocket does not leave much room along the shaft. We supply this seal line and can walk you through the selection if you send the code or your measurements.

Reading the designation is straightforward. DBH identifies the brand of the seal, 5689 is the reference number, and the three dimensions follow in order: shaft 34.93 mm, housing 63.55 mm, width 12.70 mm. The Lz designation describes a single sealing lip with a spring, a configuration meant for rotating shafts running with oil or grease.

Seals of this family sit in gear reducers, pumps, electric motors, line shafts and process machinery. Two jobs are handled at once: the lubricant stays where it belongs, and dust, water or fine particles are kept from reaching bearings and gears. They fit applications with moderate shaft speeds and operating temperatures that stay within the range the elastomer can handle.

Before pressing one in, confirm the shaft and bore match the figures above. Lubricate the lip, then slide the shaft through with an installation sleeve so the sealing edge is not nicked. A shaft with burrs or scratches will shorten seal life, so inspect that surface first. The 12.70 mm height tells you how much depth the housing pocket has to provide.

Working from an old part number? Send us 5689, or simply the shaft and housing measurements. We can search for equivalents in the same brand or in other seal lines we carry, keeping the dimensions and lip style consistent. If the pocket is too shallow for this height, or the application calls for a different lip, we can point you toward the right option.