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DBH type Lz radial shaft seal, single lip with spring, in section · DBH 5261Sil
DBH 5261Sil radial shaft seal — 25.4 x 38.07 x 6.35

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DBH 5261Sil radial shaft seal — 25.4 x 38.07 x 6.35

Manufacturer Part Number5261Sil
Brand
DBH
Category
Seals
Seal material
silicone
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Since 1945 · Martínez, Buenos Aires, Argentina

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Description

DBH 5261Sil is a reference of radial shaft seal, within Seals. Request a quote for 5261Sil via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The DBH 5261Sil oil seal is a single-lip radial seal that mounts on the shaft and closes against the housing to retain lubricant and block the entry of dust, water or particles. Due to its dimensions of 25.40 mm shaft, 38.07 mm housing and 6.35 mm height, and its Lz design, it is a common replacement part in gearboxes, pumps and low- and medium-demand transmission equipment. MR Accesorios Industriales supplies this brand and advises you so you can choose the correct seal.

This item is a DBH radial shaft seal of the designation 5261Sil, with the following dimensions taken from the product page: shaft diameter 25.40 mm, housing diameter 38.07 mm and height 6.35 mm. The Lz design corresponds to a sealing lip with spring and metal body, intended for rotating shafts with permanent lubrication. The lip elastomer works on the shaft race and the outer case fits by interference in the housing. It is a wear part: when oil loss or dirt ingress appears, it is replaced.

Typical applications for a seal of this size include gearboxes, gearmotors, centrifugal pumps, compressors, fan shafts and belt or chain transmission equipment. It is also used in machine tools, conveyors and process equipment where the lubricant must be separated from the environment. As it is an inch size converted to millimeters, it is common in imported equipment and in machinery replacement with shafts standardized in the inch system.

To select and assemble the seal, take into account the condition of the shaft race: if there is wear, scratches or corrosion, the lip will not seal even if the size is correct. Also verify the concentricity and finish of the housing, and lubricate the lip before inserting it so as not to damage it. The seal is mounted with the lip facing the lubricant side and is seated with a tube of suitable diameter, never striking the elastomer. If the equipment works with high vibration or temperature, evaluate a more resistant compound.

If you need an equivalent, send us the code 5261Sil or the shaft, housing and height dimensions of the original seal. It also helps to send a photo of the part and the housing, or the equipment drawing. With that data we search the DBH line and other compatible alternatives, and we quote you. If the original seal cannot be obtained, we can evaluate a replacement with the same shaft and housing diameter, adjusting the height if space allows.

MR Accesorios Industriales supplies the DBH brand. To request a quote for the 5261Sil seal or ask about an equivalent size, write to us on WhatsApp with the code and dimensions. We will reply with the alternative that best suits your equipment.

Dimensions

Shaft (d)
25.4mm
Housing bore (D)
38.07mm
Height (h)
6.35mm
Design
Lz

Frequently Asked Questions

What are the dimensions of the DBH 5261Sil seal?
According to the manufacturer's product page, the 5261Sil seal has a shaft diameter of 25.40 mm, a housing diameter of 38.07 mm and a height of 6.35 mm. These are inch dimensions converted to millimeters, so it is advisable to verify the shaft and housing before assembly.
How do I know if this seal replaces the one in my equipment?
Compare the shaft diameter, housing diameter and height. If they match, the 5261Sil seal is compatible. If the height varies by a few tenths, it can be adapted as long as the housing allows it. If in doubt, send us the original dimensions on WhatsApp.
What does the Lz design mean in this seal?
The Lz design indicates a radial shaft seal with a sealing lip and spring, of standard construction for rotating shafts. It is the most common type in gearboxes, pumps and motors. For applications with high temperature or speed, ask us about compound variants.
Request a quote for 5261Sil via WhatsApp
Request a quote on WhatsApp