DBH 9239 radial shaft seal — 10.8 x 20 x 9

DBH 9239 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 9239 and any equivalents.

For rotating shafts, the DBH 9239 radial shaft seal keeps lubricant in and contaminants out. It sits press-fitted in the housing, while a flexible lip runs against the shaft and absorbs minor misalignment. Because it wears over time, oil weeping, grease loss or dirt getting past the seal area are signs that replacement is due. The 9239 covers compact, low- to medium-demand duties, with a 10.80 mm shaft, 20.00 mm housing and 9.00 mm height in the Lx design.

The three measurements that define this seal are shaft 10.80 mm, housing 20.00 mm and height 9.00 mm. Its Lx designation refers to the lip and case arrangement used by the manufacturer. Those figures govern fit: the housing bore takes the outer diameter, and the shaft passes through the lip. When ordering a replacement, measure all three on the old part with a caliper and compare before committing.

Seals in this size range are common on small-diameter shafts in compact machinery: small electric motors, gear reducers, pumps, fans, power transmission equipment and process units where the job is to hold oil or grease in and keep contaminants out. Drive mechanisms, rollers and transmission shafts turning at moderate speed also use them. The function is always the same: separate the lubricated side from the surrounding environment.

Selection and installation follow a few basics. Confirm shaft diameter, housing diameter and height, and fit the lip so its edge faces the fluid being retained. The shaft surface should be clean, with no burrs or marks, and the lip benefits from a light lubrication before insertion. Press the seal in evenly and perpendicular to the shaft, without striking the lip. A worn shaft can prevent a correctly sized lip from sealing.

To quote the 9239, send the three dimensions — shaft, housing and height — along with the fluid and the application. With that information we locate a matching seal in the DBH line or in another brand we supply and confirm the alternatives. We can also advise when the Lx design is not the right choice and a different lip or case style is required.

MR Industrial Accessories supplies the DBH line. For a quote on the 9239 oil seal or to ask about an equivalent, send the code on WhatsApp and we will reply with options for your size.