DBH 8142 radial shaft seal — 230 x 255 x 10

DBH 8142 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 8142 and any equivalents.

A large-diameter lip seal, the DBH 8142 keeps lubricant inside and contaminants outside where a shaft turns within a fixed housing. Its size — 230 mm shaft, 255 mm housing, 10 mm width — suits heavy equipment such as gearboxes and continuously running process machinery. MR Industrial Accessories supplies this reference within its seals and radial shaft seal range.

The 8142 code pins down one specific size in the DBH line, and the Lz designation describes how the seal is built: one lip, a stainless steel spring, and a metal outer case. Reading the numbers is straightforward — shaft diameter (d) 230 mm, housing bore (D) 255 mm, overall height (h) 10 mm. Sizes in this range belong to large shafts, so the seal has to hold oil or grease in and keep dust and water out while the shaft keeps rotating.

You will find seals like this wherever a rotating shaft passes through a stationary housing. Typical spots include large gearboxes, mills, industrial mixers, process pumps, conveyor rollers, and equipment in mining or cement plants. They also show up on older or one-off machines, where matching the exact size is what keeps a repair from turning into a long shutdown. In every case the seal acts as the dynamic barrier between the lubricated side and the outside.

Fitting a seal this size calls for a few checks first. Confirm that the shaft and housing measurements match the figures above, and look for burrs or worn spots on the sealing surface. Lubricate the lip before pressing the seal in, and keep it square to the bore — hammer blows can distort the metal case. Lip compound selection follows the fluid and the operating temperature, since not every material withstands the same chemicals. If the shaft already shows a wear groove, a repair sleeve or a different size may be the better route.

When you need something that works in place of the DBH 8142, send the complete code, the 8142 designation, or the dimensions 230 x 255 x 10 mm, ideally with a photo of the seal you are replacing. With that information we can search other brands or configurations that do the same job, and recommend a lip type and material suited to your fluid and temperature.

DBH is one of the seal brands MR Industrial Accessories carries. For this seal, message us on WhatsApp with code 8142 and we will prepare your quote. Our team can also confirm that the size and the Lz design fit your application.