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Radial shaft seal DBH 6603Sil — 120.00 x 150.00 x 12.00
- Manufacturer Part Number
- 6603Sil
- Brand
- DBHOfficial brand
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
DBH 6603Sil is a radial shaft seal reference, within Seals. Request a quote for 6603Sil via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The DBH 6603Sil radial shaft seal is a lip seal that is mounted in the housing and seals against the rotating shaft to retain lubricant and block the entry of dust, water or particles. Its designation indicates the main dimensions: 120 mm shaft diameter, 150 mm housing diameter and 12 mm height. It is a common replacement part in gearboxes, pumps and transmission equipment operating with shafts of that size.
This DBH 6603Sil oil seal has a shaft diameter of 120 mm, a housing diameter of 150 mm and a height of 12.00 mm. The Lx design corresponds to a single lip configuration with spring, intended for rotating shafts with permanent lubrication. The flexible lip rests on the shaft and the outer body is interference-fitted into the housing, so the seal remains fixed while the shaft rotates. It is a component of the radial shaft seal category, in this case from the DBH brand, an official brand that MR carries.
Typical applications for a seal of this size appear in gearboxes, centrifugal pumps, large electric motors, rollers and belt or chain transmission equipment. In all those cases it performs the same function: preventing oil or grease from escaping the housing and preventing the external environment from contaminating the lubricant. It is also used as a barrier in equipment subject to washing or dust exposure, where the seal works alongside a bearing or bushing.
To select and install the seal, verify that the shaft and housing diameters match the values in the designation, and that the height is compatible with the housing depth. Check the condition of the shaft running surface: a scratched or worn surface accelerates lip failure. During installation, lubricate the lip and use an insertion tool that presses on the outer edge, never on the lip. If the shaft has burrs, remove them before sliding the seal on.
If you need a nearby size or an equivalent from another brand, send us the part number engraved on the old seal and the measurements taken with a caliper: shaft diameter, housing diameter and height. With that data we can locate the equivalent designation within the same series or propose a compatible alternative. If the original seal has no legible part number, a photo of the housing and shaft helps confirm the lip configuration and material.
To request a quote for the DBH 6603Sil oil seal or ask about a similar size, send the part number by WhatsApp to MR Accesorios Industriales. With more than 80 years in the industry, the technical team reviews the inquiry and responds with the alternative that best suits your equipment. You can also send the assembly data sheet or the housing measurements if you need guidance to choose the correct seal.
Dimensions
- Shaft (d)
- 120mm
- Housing bore (D)
- 150mm
- Height (h)
- 12.00mm
- Design
- Lx
Frequently Asked Questions
- What are the dimensions of the DBH 6603Sil oil seal?
- The DBH 6603Sil oil seal has a 120 mm shaft diameter, a 150 mm housing diameter and a 12.00 mm height. These values come from its designation and are the ones you need to compare with your equipment's housing and shaft before installing it.
- How do I request a seal equivalent to the 6603Sil?
- Send the old seal's part number and the shaft, housing and height measurements via WhatsApp. With that data we look for the equivalent designation in the same series or a compatible alternative. If the part number is not legible, a photo of the assembly helps confirm the configuration.
- What should I check before installing a radial shaft seal?
- Verify that the shaft has no scratches or burrs, lubricate the lip before inserting it and use a tool that presses on the outer edge of the seal, not on the lip. It is also advisable to check that the housing depth is compatible with the seal height.

