DBH 5773 radial shaft seal — 37.7 x 55 x 8

DBH 5773 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 5773 and any equivalents.

A rotary shaft seal such as the DBH 5773 keeps lubricant where it belongs and keeps dust, water and particles out. Its three defining measurements are a 37.70 mm shaft, a 55.00 mm housing bore and an 8.00 mm height. Maintenance and purchasing teams encounter this size in gearboxes, pumps and other power transmission equipment, and MR supplies the DBH line.

Reading the designation is the quickest way to confirm a match. The number 5773 identifies this particular size in the DBH range, while the dimensions tell you where it fits: shaft 37.70 mm, housing 55.00 mm, width 8.00 mm. The lip rides on the rotating shaft, and the outer diameter presses into the housing bore. This is an Mz style radial shaft seal. Keep the part number handy when you place a replacement order.

Typical service is any assembly where a shaft turns inside an oil or grease reservoir: gearboxes, centrifugal pumps, electric motors, mixers, conveyors, and agricultural or road machinery. In each of those positions the seal does two jobs at once, holding the lubricant in and keeping contaminants out, which matters because grit and moisture shorten the life of bearings and gears.

Selection starts with the bore and shaft measurements. Confirm they agree with the values listed for the seal, then inspect the shaft surface, since a fresh lip cannot seal against a scored or burred journal. At installation, coat the lip with lubricant, set the seal square to the bore, and drive it in with a tube or spacer sized to the outer diameter. Striking the lip directly can damage it. Remove any burrs from the housing before seating the seal.

If you are cross-referencing, send part number 5773 along with the shaft, housing and height figures. From that information we can identify a match in the DBH line or in another brand we supply. For seals on critical equipment, we can also help you review lip style and material against the fluid in use and the operating temperature.

MR Industrial Accessories LLC supplies the DBH brand. For a quote on the DBH 5773 oil seal, message us on WhatsApp or by email with the part number and dimensions. We answer promptly and can point you to equivalents that suit your equipment.