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Radial shaft seal DBH 8637 — 35.00 x 49.00 x 12.50
- Manufacturer Part Number
- 8637
- Brand
- DBHOfficial brand
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
DBH 8637 is a radial shaft seal reference, within Seals. Request a quote for 8637 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The DBH 8637 radial shaft seal is a lip seal designed for rotating shafts. Its function is to retain lubricant inside the housing and prevent the entry of dust, water or particles. With dimensions of 35 mm shaft diameter, 49 mm housing and 12.50 mm height, it is press-fit into covers, boxes or pumps. It is a wear part that should be replaced at the slightest sign of leakage. MR Accesorios Industriales sells it as part of its seals and oil seals line.
This item is a radial shaft seal from the DBH brand, identified with the code 8637. Its dimensions are 35.00 mm shaft diameter (d), 49.00 mm housing diameter (D) and 12.50 mm height (h). The Lx-R-AH design indicates a configuration with a retaining lip, spring and reinforced body for demanding applications. The sealing lip runs on the rotating shaft, while the outer diameter fits into the housing to ensure tightness.
It is used in equipment where there is rotary motion and a need to confine lubricant: gearboxes, centrifugal pumps, electric motors, transmission shafts, mixers and agricultural or industrial machinery. It also appears in applications exposed to dust or water, where the seal acts as a barrier. It is commonly found in plant maintenance, repair shops and production line replacements.
To mount it correctly, verify that the shaft has no burrs or wear and that the surface where the lip seats is clean and lubricated. The housing must be free of impacts and have the proper depth so that the seal sits flush or slightly recessed. When selecting a replacement, in addition to the dimensions, take into account the type of elastomer and the spring, depending on the temperature and the working fluid. Forced or off-center installation shortens service life.
If you need a neighboring size or an equivalent from another brand, send us the full code and the dimensions of the original seal. We can also help you if the housing has a slightly different diameter or if you are looking for a variant with a double lip. At MR Accesorios Industriales we have more than 80 years of experience in power transmission and sealing, and we advise you so that you choose the right option.
To request a quote for the DBH 8637 oil seal or ask about a similar size, send us the code by WhatsApp. We will reply with the alternatives that best suit your equipment. MR Accesorios Industriales, since 1945, supports industry with quality components and technical advice.
Dimensions
- Shaft (d)
- 35mm
- Housing bore (D)
- 49mm
- Height (h)
- 12.50mm
- Design
- Lx-R-AH
Frequently Asked Questions
- What are the dimensions of the DBH 8637 oil seal?
- Its dimensions are 35.00 mm shaft diameter, 49.00 mm housing diameter and 12.50 mm height. It is always advisable to verify these dimensions with a caliper before replacing, because an error of tenths can cause leaks.
- How do I know if the oil seal is worn?
- Typical signs are lubricant loss, dirt ingress, noise in the nearby bearing or vibration. If the lip is hardened, cracked or the spring is loose, it is time to change it. A periodic visual inspection helps prevent major failures.
- Can I replace it with an oil seal from another brand?
- Yes, as long as the dimensions and design match. Send us the code and the dimensions of the original to look for an equivalent. At MR Accesorios Industriales we advise you so that the replacement fulfills the same sealing function.

