DBH 8389 radial shaft seal — 8 x 19 x 5

DBH 8389 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 8389 and any equivalents.

The DBH 8389 is a radial shaft seal built for 8 mm rotating shafts, where it keeps lubricant in and contaminants out. Its compact envelope and Lt design suit tight assemblies that still need a dependable barrier against dust, water ingress and oil loss. You will find it in pumps, electric motors, gearboxes and power transmission equipment running at moderate speeds and within the normal temperature range of nitrile elastomers.

This seal carries the DBH brand and part number 8389. Its nominal dimensions are shaft 8.00 mm, housing 19.00 mm, height 5.00 mm. The Lt designation refers to a single lip with a spring, intended for rotating shafts under permanent lubrication. The elastomer lip and the internal metal spring work together to hold steady contact pressure on the shaft, which limits wear and helps the seal last.

Common uses include small centrifugal pumps, low-power electric motors, speed reducers, compressors, and belt- or chain-driven transmission equipment. It also appears in machine tools, refrigeration units and hydraulic systems where oil or grease has to be contained in a small space. The compact size fits 8 mm shafts turning at moderate speeds with light vibration.

When selecting a seal like the 8389, confirm the shaft diameter falls within the tolerance normally recommended for radial seals, typically h6 or js6, and that the housing bore has an appropriate surface finish. The 5.00 mm height has to match the housing depth so the seal does not leak or deform. At installation, lubricate the lip with the working fluid, press the seal in perpendicular to the shaft, and avoid hitting it directly. If the shaft is worn, a repair sleeve is an option.

If you need a seal with equivalent dimensions or another variant from the same series, ask us. We supply the DBH brand as well as alternatives from other manufacturers to match your requirement. For a replacement, provide the shaft diameter, housing diameter and height, or just the part number 8389. We can also advise on the most suitable elastomer type for your fluid and operating temperature.

To request a quote for the DBH 8389 oil seal or to ask about other sizes, write to us on WhatsApp or by email. MR Industrial Accessories supplies the DBH brand and can help you find the right seal for your equipment. Send the part number 8389 or your shaft dimensions and we will reply promptly.