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DBH type Lz radial shaft seal, single lip with spring, in section · DBH 6221
DBH 6221 radial shaft seal — 12.5 x 25.53 x 5.78

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DBH 6221 radial shaft seal — 12.5 x 25.53 x 5.78

Manufacturer part number6221
Brand
DBH
Category
Seals
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Description

DBH 6221 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 6221 and any equivalents.

The DBH 6221 is a radial shaft seal that keeps lubricant in and contaminants out of rotating assemblies. Its size—shaft 12.5 mm, housing 25.53 mm, height 5.78 mm—suits tight installation spaces. The Lz designation points to a lip-and-spring construction for dependable sealing. MR Industrial Accessories supplies this brand, so you can source replacements with exact dimensions.

This seal carries the DBH brand and code 6221. The dimensions are shaft diameter (d) 12.5 mm, housing diameter (D) 25.53 mm and height (h) 5.78 mm. Lz indicates a lip seal with a spring, built for rotating shafts. It is pressed into the housing, and the flexible lip rides against the shaft to hold lubricant and keep out dust and moisture.

You will find it in equipment with rotating motion where oil or grease must be retained. Typical locations include gearboxes, pumps, electric motors, compressors, spindles and transmissions, as well as automotive, agricultural and industrial implements. Because of its compact size, it also appears in small mechanisms such as appliances, power tools and precision devices that need effective sealing in limited space.

Selection starts with matching the shaft, housing and height dimensions to the original seal. The Lz design must also suit the lubricant, speed and temperature of the application. During installation, lubricate the lip, keep it away from burrs and confirm the shaft has no splines or wear. Careful fitting extends seal life and helps prevent early leaks.

For code 6221, you can ask about an equivalent. MR Industrial Accessories can check its range of radial shaft seals for alternatives that preserve the critical dimensions. Send the original code, the dimensions or a photo of the part to speed up the comparison and reduce the risk of a wrong replacement.

To request a quote for this DBH 6221 oil seal or for technical help, message us on WhatsApp. MR Industrial Accessories will respond with the information you need to proceed. Send the code or dimensions and we will help you find the right solution.

Dimensions

Shaft (d)
12.5mm
Housing bore (D)
25.53mm
Height (h)
5.78mm
Design
Lz

Frequently asked questions

What does the Lz design mean on this oil seal?
Lz indicates a lip-and-spring construction that maintains contact on the shaft for sealing. It is an internal DBH series designation that describes the build, but always confirm compatibility with your equipment.
Can I replace the 6221 oil seal with another of similar dimensions?
Yes, an equivalent that matches the shaft, housing and height dimensions can be considered. The lubricant and operating conditions also matter. Contact us with the code or dimensions and we will help you find a suitable alternative.
How should I install this oil seal so it does not fail?
Lubricate the lip before installation, make sure the shaft is clean and free of burrs, and press the seal in perpendicular to the housing. Avoid striking the lip and ensure it seats evenly. Proper installation prevents leaks and extends service life.
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