DBH 5143 radial shaft seal — 34 x 72 x 14

DBH 5143 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 5143 and any equivalents.

The DBH 5143 is a radial shaft seal that keeps oil or grease contained between a rotating shaft and its housing. It fits a 34 mm shaft, a 72 mm housing bore and a 14.00 mm height, and its Lx design indicates a single lip with a spring for internally lubricated rotating shafts. This seal is commonly found in gearboxes, pumps, electric motors and other power transmission equipment.

When selecting a replacement, the three critical dimensions are shaft diameter (d) 34 mm, housing bore (D) 72 mm and overall width (h) 14.00 mm. The Lx configuration tells you it has one lip and a garter spring, which is suitable for retaining lubricant on the inside. The code 5143 identifies this exact size within the DBH line, so ordering by that part number helps avoid mix-ups with similar seals.

Seals of this size are used in gear reducers, centrifugal pumps, electric motors, transmission shafts and various process machines. Their job is twofold: hold the lubricant in and keep dust, water and other contaminants out. Because the lip wears over time, the seal is a maintenance item that gets replaced when you spot a leak or when the lip feels hard or shows damage.

Proper installation makes a difference. Make sure the shaft is clean, free of burrs and has the correct surface finish where the lip rides. Apply lubricant to the lip before sliding it into place, and press it in squarely using a tube or press that contacts the metal case, never the lip. If there is a recess in the housing, seat the seal to the correct depth so it sits straight.

To get a quote for part number 5143, send the shaft, housing and height dimensions, plus the lubricant type or operating speed if available. Our team can review alternatives within the DBH line or from other brands we supply, and we confirm the details against the manufacturer's data before quoting. You can reach us by WhatsApp or email.

MR Industrial Accessories LLC supplies this seal and other power transmission components to customers across the United States and in several Latin American countries. We also manufacture split plummer block housings, roller chains and sheaves. For assistance with the DBH 5143 or to request a quote, contact us with the part number.