DBH 5303 radial shaft seal — 40 x 62 x 13

DBH 5303 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 5303 and any equivalents.

The DBH 5303 is a radial shaft seal from the DBH line, built to keep lubricant in and contaminants out of rotating shafts. Its code 5303 maps to a 40 mm shaft, a 62 mm housing bore and a 13 mm height, and the Lx design denotes a single lip with a spring for one direction of rotation. You will find it in gearboxes, pumps, motors and other power transmission equipment running on oil or grease. MR Industrial Accessories supplies this brand and can help you match the right seal to your application.

Reading the code: 5303 is the size reference, and the three figures that matter are shaft 40 mm, housing bore 62 mm and height 13 mm. The Lx suffix tells you the lip arrangement: one sealing lip with a spring, intended to hold lubricant on one side of the shaft. In service, the lip rides on the rotating shaft while the outer case is pressed into the housing bore, so the seal becomes a common wear item on any assembly with rotary motion.

Where it fits: gearboxes, centrifugal pumps, electric motors, compressors and conveyor rollers are typical hosts. The job is always the same, keeping oil or grease where it belongs and shutting out dust, water and particles that would otherwise reach the bearings. Power transmission equipment that runs continuously is another frequent home for this seal, since stopping leaks there also cuts maintenance work.

Installation notes: inspect the shaft for burrs or a worn track and make sure the housing is clean and undistorted before you start. Coat the lip with the same oil or grease the equipment uses, then press the seal in evenly until it bottoms out. If the shaft shows a pronounced groove, a repair sleeve is worth considering. Speed, temperature and the fluid being sealed all influence the final selection.

Need an equivalent? Send the full code, the shaft, bore and height measurements, and a photo of the old part. With that information we can search the DBH line or other brands we supply, and we can also advise on lip style and elastomer material for your fluid and operating temperature.

To request a quote for the DBH 5303, message us on WhatsApp or by email with the code 5303 and the quantity you need. The team replies promptly and can also assist if you have questions about installation or are replacing a seal whose markings are no longer legible.