DBH 8417 radial shaft seal — 21.5 x 40 x 7

DBH 8417 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 8417 and any equivalents.

The DBH 8417 is a radial shaft seal that keeps oil or grease contained where a shaft turns inside a fixed housing. MR supplies this brand and helps you match the seal to your equipment. With a 21.50 mm shaft diameter, a 40.00 mm housing diameter and a 7.00 mm height, it fits gearboxes, pumps and small electric motors.

This seal belongs to the DBH line and carries the part number 8417. Its dimensions are shaft 21.50 mm, housing 40.00 mm, height 7.00 mm. The Lz-H design uses a spring-loaded lip with a geometry intended to hold lubricant in place. It works as a standard replacement on rotating shafts where oil must stay inside and contaminants must stay out.

You will find it in gearboxes, centrifugal pumps, electric motors, drive shafts and power transmission equipment, as well as in machine tools and continuous process lines. By sealing the gap between shaft and housing, it protects bearings and gears from lubricant loss and from dust or water ingress.

Before installation, confirm that the shaft and housing diameters match the figures above. The shaft should be clean, free of burrs and with an appropriate surface finish; the housing should not be distorted. Lubricate the lip, press the seal in perpendicular to the shaft and avoid hitting it directly. If the shaft is worn, an auxiliary lip version may be a better choice.

If you need an equivalent or another size, send the part number 8417 or your shaft and housing dimensions. We can search for alternatives in other brands or series that do the same job, and we advise on lip material and spring type according to the fluid and operating temperature.

To request a quote for the DBH 8417 oil seal or to ask about other seals, contact us on WhatsApp or by email. MR helps you find the part you need.