Product page
Radial shaft seal DBH 8904 — 50.00 x 64.00 x 7.00
- Manufacturer Part Number
- 8904
- Brand
- DBHOfficial brand
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
DBH 8904 is a radial shaft seal reference, within Seals. Request a quote for 8904 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The DBH 8904 radial shaft seal is a lip seal that mounts in the housing and seals against the shaft to retain lubricant and block the entry of dust, water or particles. Its dimensions of 50 mm shaft, 64 mm housing and 7.00 mm height correspond to the Lx design, with a single lip and spring. It is used in gearboxes, pumps, electric motors and power transmission equipment, where the shaft rotates continuously and a reliable barrier is required.
This item is a DBH 8904 radial shaft seal, identified by its designation 8904. According to the product page data, it mounts on a shaft with a diameter of 50 mm, in a housing of 64 mm and with a total height of 7.00 mm. The Lx design corresponds to a single-lip seal with a steel spring, intended for rotating shafts with permanent lubrication. The DBH brand is an official brand that MR carries, so the replacement part is available with that exact identification.
Typical applications for a seal of these dimensions appear in gearboxes, centrifugal pumps, electric motors, conveyor rollers and belt or chain drive equipment. In all cases it performs the same function: confining the oil or grease inside the assembly and preventing contaminants from entering from the outside. It is also found in machine tools, compressors and speed reducers that operate with 50 mm shafts.
For proper installation, check that the shaft has no burrs or deep marks on the sealing track and that the housing is clean and free of deformation. Lubricate the lip with the same grease or oil used in the equipment before inserting it, and do so with a flat driver so as not to twist it. Seal selection depends on shaft diameter, housing diameter, available height and lip type; if the Lx design is not the right one, another geometry must be evaluated.
If you need an equivalent or a nearby size, send us the code 8904 together with the shaft, housing and height dimensions shown on the equipment. With that data we can look for an alternative within the same radial shaft seal category or suggest a compatible replacement. The more complete the assembly information — type of lubricant, speed and operating temperature — the more accurate the proposal will be.
To request a quote for the DBH 8904 oil seal or ask about other sizes in the line, write to us on WhatsApp at MR Accesorios Industriales with the code and dimensions. We will reply with the alternatives that best fit your equipment.
Dimensions
- Shaft (d)
- 50mm
- Housing bore (D)
- 64mm
- Height (h)
- 7.00mm
- Design
- Lx
Frequently Asked Questions
- What are the dimensions of the DBH 8904 oil seal?
- The DBH 8904 oil seal has a 50 mm shaft diameter, a 64 mm housing diameter and a 7.00 mm height. These dimensions correspond to the Lx design, with a single lip and spring. It is always advisable to verify against the drawing or the equipment data sheet before installing.
- How do I request an oil seal equivalent to the 8904?
- Send the code 8904 and the shaft, housing and height dimensions of the equipment via WhatsApp. With that data we look for an alternative within the same radial shaft seal category or suggest a replacement compatible with the original design.
- What precautions should I take when installing a radial shaft seal?
- Check that the shaft has no burrs or wear on the track, clean the housing and lubricate the lip before installing it. Use a flat driver so it goes in straight and the lip is not damaged. Avoid striking it with tools that could mark it.

