DBH 8442 radial shaft seal — 75 x 100 x 12

DBH 8442 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 8442 and any equivalents.

The DBH 8442 is a radial shaft seal built for rotating shafts. It measures 75 mm at the shaft, 100 mm at the housing and 12.00 mm in height, and it uses the Kx design. Its job is to hold lubricant in place and keep dust, water and other contaminants out of gearboxes, pumps, motors and similar equipment. The flexible lip rides against the shaft, so sealing continues while the shaft turns. MR Industrial Accessories supplies this brand and can help you confirm the correct seal for your machine.

This seal carries the designation 8442 and belongs to the DBH line. The three dimensions to check before ordering are shaft diameter 75 mm (d), housing diameter 100 mm (D) and height 12.00 mm (h). In the Kx design, a sealing lip is combined with a metal reinforcement, which gives the seal its shape and keeps it seated in the housing. The elastomer lip and the metal body work as a pair: one contacts the rotating shaft, the other holds the assembly in the bore. Because the lip wears over time, this is a part that gets replaced on a scheduled maintenance interval.

Seals in this size range show up in gearboxes, centrifugal pumps, electric motors, speed reducers and other transmission equipment. The seal sits in the cover or housing and runs against the shaft, so its condition directly affects how clean the lubricant stays. You will also find this size in rollers, mixers and process machinery where oil or grease must stay inside and dust or water must stay outside. The lip compound you choose should match the fluid being sealed and the temperature the equipment reaches in service.

During installation, inspect the shaft for burrs, scratches or wear before the seal goes in, and make sure the sealing surface is clean. Put a light film of lubricant on the lip, then press the seal in square to the shaft rather than hammering on it directly. A chamfer on the housing bore makes the seal easier to start. When you select a replacement, account for shaft speed, operating temperature and the type of lubricant. The Kx design and the 75x100x12 mm dimensions need to match both the housing and the shaft, otherwise leaks can develop.

If you need an alternative to the DBH 8442, send the complete part number plus the shaft, housing and height measurements, and a photo of the old seal if you have one. With that information we can look for equivalents in the same brand or in other brands we carry. We can also tell you whether the Kx design suits your equipment or whether another configuration is a better fit. The aim is to get you the seal your machine actually needs.

To ask for a quote on the DBH 8442 oil seal or to check another size, message us on WhatsApp and include part number 8442. We will come back with the options we can offer. MR Industrial Accessories helps you keep your equipment sealed with the right replacement part.