DBH 5221Sil radial shaft seal — 42 x 65 x 12

DBH 5221Sil 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 5221Sil and any equivalents.

A radial shaft seal such as the DBH 5221Sil keeps lubricant where it belongs and keeps contamination out. It fits a 42 mm shaft, a 65 mm housing bore and a 12.00 mm height, with the Lx lip and spring design. MR Industrial Accessories supplies it through its seals and oil seals line for maintenance and repair work.

The code tells you most of what you need. DBH identifies the seal family, 5221Sil is the individual reference, and the three figures that follow describe the fit: shaft 42 mm, housing 65 mm, height 12.00 mm. The Lx designation means a single lip with a spring, which suits rotating shafts that run with permanent lubrication. The lip rides against the shaft surface and forms the dynamic barrier that holds oil or grease inside the assembly.

You will find seals of this type in gearboxes, pumps, electric motors, conveyor rollers, mixers and other continuous process equipment. In food, chemical or aggregate plants they do two jobs at once: they keep the lubricant in and they keep abrasive dust away from the bearings. That dual role is why a worn seal is worth catching early during preventive maintenance rounds.

Before ordering, confirm that the shaft diameter, housing bore and height match the part you are replacing. Look at the running surface as well, since a scored or out-of-round shaft will destroy a new lip quickly. Fit the seal square to the shaft, coat the lip with the same oil or grease used in the equipment, and clean any burrs from the housing bore so the lip does not get cut on the way in.

If the size is hard to match or the marking on the old seal has worn away, measure the shaft, bore and height and take a photo of the part. With that information we can search the DBH line and the other brands we carry for a size or an equivalent. The more detail you send, the quicker we can come back with a candidate for you to review.

To request a quote, send the reference 5221Sil or the dimensions 42 x 65 x 12 mm by WhatsApp or email. Our team replies promptly and can also help you choose a suitable alternative.