DBH 8423 radial shaft seal — 42 x 55 x 9
- Brand
- DBH
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
DBH 8423 belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 8423 and any equivalents.
The DBH 8423 is a radial shaft seal that keeps lubricant in and contaminants out of rotating shaft assemblies. It fits a 42 mm shaft, a 55 mm housing bore and a 9.00 mm width, which places it in the range of gearboxes, pumps and medium-sized electric motors. MR supplies the DBH line, so you can request this reference or ask for a replacement option.
The code 8423 defines the size within the DBH range, so it is the reference to quote or to cross to an equivalent. Dimensions are shaft 42 mm, housing 55 mm and width 9.00 mm. The Mx construction means a single sealing lip on a metal case, a common choice where oil or grease has to be retained.
You will find this seal in gearboxes, centrifugal pumps, electric motors, reducers and other power transmission equipment. Its job is to stop lubricant from escaping and to block dust or moisture before it reaches the bearing or shaft. In preventive maintenance, the seal is replaced when a leak appears or the lip shows visible wear.
Before fitting, confirm the shaft at 42 mm and the housing at 55 mm, with a 9.00 mm width. The shaft surface should be clean, free of burrs or marks, and lightly lubricated. The lip faces the fluid side. If the shaft is worn, an auxiliary lip version is worth considering. Always check the temperature and lubricant against the manufacturer's data sheet.
If you need an equivalent, send the code 8423 or the three dimensions. With that information we can search the DBH line or other options that do the same job. We can also advise when space is tight or when the original seal has a special feature such as a double lip or a high-temperature material.
To request a quote, send the code by WhatsApp or email to MR Industrial Accessories. Tell us how the seal is mounted and the working conditions, and we will reply with the options that fit your equipment.
Dimensions
- Shaft (d)
- 42mm
- Housing bore (D)
- 55mm
- Height (h)
- 9.00mm
- Design
- Mx
Frequently asked questions
- What are the dimensions of the DBH 8423 oil seal?
- Shaft 42 mm, housing 55 mm and height 9.00 mm. These are the nominal dimensions in the designation. Verify the shaft and housing with a caliper before ordering.
- Is it suitable for high temperatures?
- The standard DBH 8423 is intended for moderate lubricants and temperatures. For elevated temperatures, ask about variants with a special lip material. We do not state a temperature range without the manufacturer's technical data sheet.
- How do I request an equivalent size?
- Send the code 8423 or the dimensions of the seal you need to replace: shaft diameter, housing and height. With that data we search the DBH line or other compatible options. A photo of the seal and the housing also helps.