DBH 9451 radial shaft seal — 42 x 70 x 8

DBH 9451 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 9451 and any equivalents.

The DBH 9451 is a radial shaft seal built to sit in the housing bore and ride against a rotating shaft, holding lubricant in and keeping dust, water and particles out. Its dimensions are shaft 42 mm, housing 70 mm and width 8 mm, in the Lx design. Gearboxes, pumps, motors and transmission equipment commonly use seals of this size. MR Industrial Accessories supplies this brand and quotes by part number.

Reading the code and the size: the reference 9451 identifies this particular seal, while the three figures describe where it fits. The 42 mm value is the shaft diameter the lip contacts, 70 mm is the housing bore it presses into, and 8 mm is the overall width. The Lx design means a single lip with a spring, made for rotating shafts that run with lubrication. The elastomeric lip does the sealing on the shaft; the metal case holds the seal in the housing.

This is a wear part. With running time the lip can harden, take a set or show marks, and oil starts to weep past it. A seal of this size shows up in gearboxes and reducers, centrifugal pumps, electric motors, compressors, power transmission equipment, machine tools, food processing lines and conveyors. The job is the same everywhere: keep the lubricated side separate from the outside and stop contaminants from reaching bearings and gears.

Installation points worth checking: the shaft should be within tolerance and free of burrs or scoring on the sealing track. Put a film of lubricant on the lip before you slide it on, and drive it in with a tube that contacts the outer edge of the case, not the lip. If the shaft is already worn at the seal track, an offset lip or a repair sleeve is an option. Speed, temperature and the fluid being retained all affect the choice.

Working from an old seal? Send the shaft diameter, housing diameter and width, plus a photo or the original code. With those three figures we can match the reference in the DBH line or in another brand we supply. If the Lx design is not the right fit for your operating conditions, we can point you toward a different lip style or material.

To get a quote on the DBH 9451, send the part number by WhatsApp or email. If you are unsure about size or design, include a photo of the removed seal along with the shaft and housing measurements. That lets us confirm the exact reference and get the quote back to you quickly.