DBH 5317 radial shaft seal — 30 x 42 x 8

DBH 5317 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 5317 and any equivalents.

A rotating shaft needs a reliable barrier between the lubricant inside the housing and the environment outside it. The DBH 5317 radial shaft seal does that job, with a lip-and-spring Lx configuration and dimensions of 30.00 mm shaft, 42.00 mm housing and 8.00 mm height. MR supplies this seal for gearboxes, pumps, motors and other power transmission assemblies, and can help you confirm the right choice for your equipment.

The designation 5317 identifies the size combination, while DBH identifies the brand. Reading the published data is straightforward: shaft 30.00 mm, housing 42.00 mm, height 8.00 mm, Lx design. In practice, the Lx designation tells you the seal has a spring-loaded sealing lip, which is the arrangement normally used on rotating shafts. If you need to verify tolerances or the lip compound before ordering, send us the details and we will check them against the manufacturer's data sheet.

Where you will find it: gearboxes, centrifugal pumps, electric motors, reducers and power transmission equipment. In each case the seal keeps oil or grease where it belongs and keeps dust, water and particles out. Machine tools, conveyors and agricultural equipment are other common locations. Because it is a wear part, it deserves a place in your inspection routine, and it should be replaced once leakage or unusual noise shows up.

Installation starts with checking that the shaft measures 30 mm and the housing bore 42 mm, with 8 mm of housing width available. The shaft surface should be clean, free of burrs and marks, and lightly lubricated before the seal goes in. Press with an installation tube that contacts the outer diameter, never the lip. If the shaft is worn, a repair sleeve or a different size may be the better route. Speed, temperature and the fluid being retained all belong in the selection decision.

Need a cross-reference for the 5317? Send the code DBH-5317, or simply your shaft and housing dimensions, through WhatsApp or email. We can search our seal line for equivalents in other brands or configurations and suggest what fits. MR serves maintenance and purchasing teams across the United States and in several Latin American countries, and our team responds promptly with a quote or a recommendation.