DBH 9702 radial shaft seal — 20 x 47 x 8.4

DBH 9702 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 9702 and any equivalents.

The DBH 9702 is a radial shaft seal built to keep lubricant inside a housing and keep dirt out. It fits a 20 mm shaft, a 47 mm bore and an 8.40 mm width, so it works well where the mounting space is tight. DBH is one of the brands MR supplies, and the code can be checked against equivalents on request.

Reading the code: 9702 is the DBH reference, and the three figures that follow describe the seal itself, with a 20 mm shaft, a 47 mm housing bore and an 8.40 mm width. The Mx designation points to a single lip with a spring, the usual choice for a lubricated rotating shaft. A metal case holds the elastomer lip in place, and the two parts together do the sealing work.

Typical homes for a seal like this one are gearboxes, pumps, motors, rollers and other transmission equipment. It does two jobs at once: it holds oil or grease in and it keeps dust, water and particles out. When the seal is matched correctly to the application, bearings and gears are protected from contamination and from running dry. Because the lip wears against the shaft, the seal belongs on the scheduled replacement list.

Before pressing it in, check the shaft for hardness, surface finish, burrs and handling marks. Put a film of lubricant on the lip, then drive the seal with a tube that contacts the outer diameter only, never the lip. The 8.40 mm width has to sit correctly in the housing depth. In dirty service, an auxiliary lip is worth considering. Shaft and housing alignment also matters, since misalignment shows up later as a leak.

For a quote on an equivalent, send the 9702 code or the 20 x 47 x 8.40 figures by WhatsApp or email. Alternatives from other brands, or with a slightly different width, can be checked and confirmed against your application. The choice of elastomer can also be reviewed based on the fluid and the working temperature. MR supplies this brand and can help with the selection.

To request a quote for the DBH 9702, message the code and the quantity you need, and the team will get back to you promptly. If you want to compare it with another design or have questions about installation, the technical team can assist.