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Radial shaft seal DBH 6731 — 120.00 x 145.00 x 15.00
- Manufacturer Part Number
- 6731
- Brand
- DBHOfficial brand
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
DBH 6731 is a radial shaft seal reference, within Seals. Request a quote for 6731 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The DBH 6731 radial shaft seal is a lip seal that is mounted on the shaft and closes against the housing to retain lubricant and block the entry of dust, water or particles. With dimensions of 120 mm shaft, 145 mm housing and 15 mm height, and Kx design, it is used in gearboxes, pumps, electric motors and power transmission equipment operating with shafts of that diameter. MR Accesorios Industriales carries it as part of its seal line.
This item is a seal from the DBH 6731 series, with the following dimensions: shaft diameter 120 mm, housing diameter 145 mm and height 15.00 mm. The Kx design corresponds to a single-lip configuration with spring, intended for rotating shafts with lubrication. Code 6731 identifies the exact combination of dimensions and design within the DBH line, and it is the data you need to provide so we can confirm the part without ambiguity.
Seals of this size are found in equipment where the shaft rotates at medium speeds and oil or grease is present: gearboxes, centrifugal pumps, medium-power electric motors, conveyor rollers and machine tools. They also appear in applications where the environment has dust or moisture and an additional barrier beyond the lubricant is needed. If the equipment operates with vibration or misalignment, it is advisable to check the condition of the shaft and housing before replacing.
To correctly select a seal, verify that the shaft diameter, housing diameter and height match those of your equipment's housing and shaft. The Kx design defines the lip type and material, but it does not replace verification of peripheral speed or operating temperature. During installation, lubricate the lip, avoid striking it and make sure the shaft has no burrs or marks that could damage the seal. If the shaft is worn, consider a repair sleeve.
If you cannot find code 6731 or need a nearby size, send us the shaft diameter, housing diameter and height you measured, along with a photo of the old seal if possible. With that data we look for the equivalent in DBH or another brand we carry, or we tell you if there is a standard size that fits. We can also verify whether the Kx design is suitable for your application according to the type of lubricant and the speed.
To request a quote for the DBH 6731 oil seal or ask about an equivalent size, send code 6731 by WhatsApp to MR Accesorios Industriales. We will reply with the alternatives we have in the seal line. If you need several, indicate the quantity and intended use so we can guide you better.
Dimensions
- Shaft (d)
- 120mm
- Housing bore (D)
- 145mm
- Height (h)
- 15.00mm
- Design
- Kx
Frequently Asked Questions
- What dimensions does the DBH 6731 oil seal have?
- The DBH 6731 oil seal has a 120 mm shaft diameter, a 145 mm housing diameter and a 15.00 mm height. These dimensions correspond to designation 6731 and the Kx design. It is always advisable to verify against the housing and shaft before installing.
- How do I request a seal equivalent to the 6731?
- Send code 6731 by WhatsApp or the dimensions you measured: shaft diameter, housing diameter and height. With that data we look for the equivalent in DBH or another brand we carry and confirm the option.
- What does the Kx design mean on this oil seal?
- The Kx design identifies a single-lip configuration with spring, suitable for rotating shafts with lubrication. It is not a dimension, but a construction feature. If your application has special conditions, consult us to assess whether it is the right design.

