DBH 5656 radial shaft seal — 63.5 x 88.9 x 12.7

DBH 5656 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 5656 and any equivalents.

For maintenance teams working on medium-section shafts, the DBH 5656 oil seal is a single-lip radial shaft seal that fits on the shaft and into the housing to keep lubricant in and contaminants out. With a 63.50 mm shaft, 88.90 mm housing and 12.70 mm height, it suits pumps, gearboxes and transmissions. MR Industrial Accessories supplies this brand and can help you verify the size before you request a quote.

The DBH 5656 radial shaft seal carries part number 5656 and is built to the Mx design. That designation refers to how the lip and metal body are constructed, not to the dimensions. The three critical measurements are: shaft diameter 63.50 mm, housing diameter 88.90 mm, and height 12.70 mm. The lip rides on the shaft while the outer edge seats in the housing. If you need to confirm the Mx nomenclature, we can check it against the manufacturer's data sheet.

Seals of this size are common in gearboxes, centrifugal pumps, electric motors, rollers and transmission equipment where a shaft turns inside a stationary housing. Their job is dual: retain oil or grease and block dust, water or particles from entering. In dirty or wet environments, the seal acts as the first line of defense, so it should be inspected whenever the assembly is opened.

Proper installation starts with a clean, burr-free shaft and a housing free of dents. Lubricate the lip before pressing it in, and keep the seal perpendicular to the shaft. For high-speed or high-pressure applications, a reinforced design or an auxiliary lip may be better. Final selection depends on speed, temperature and the fluid being sealed.

If part number 5656 is not what you need, we can source an equivalent from another brand. Just send the shaft, housing and height measurements, or the original equipment part number. A photo of the old seal next to a caliper also helps. With that information, we review options within the DBH line and other brands we carry.

To request a quote for the DBH 5656 oil seal, send the part number via WhatsApp to MR Industrial Accessories. If you are ordering multiple seals, include the full list and we will respond promptly. We can also advise on installation or lip selection for your specific equipment.