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Radial shaft seal DBH 6643Pol — 17.50 x 28.50 x 6.00
- Manufacturer Part Number
- 6643Pol
- Brand
- DBHOfficial brand
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
DBH 6643Pol is a radial shaft seal reference, within Seals. Request a quote for 6643Pol via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The DBH 6643Pol radial shaft seal is a lip seal that mounts in the housing and seals against the rotating shaft to retain lubricant and block the entry of dust, water or particles. Its dimensions of 17.50 mm shaft, 28.50 mm housing and 6.00 mm height, with Lz design, place it in small equipment where axial space is limited. MR Accesorios Industriales carries this official brand and advises you on choosing the right seal.
This item is a seal from the DBH line, identified with code 6643Pol. Its published attributes are: shaft diameter 17.5 mm, housing diameter 28.5 mm and height 6.00 mm. The Lz design corresponds to a single-lip configuration with spring, suitable for rotating shafts with lubrication. The manufacturer's nomenclature summarizes those dimensions in the code, so it is worth verifying that your equipment's shaft and housing match those values before replacing.
Seals of this size are used in small gear reducer boxes, low-power electric motors, centrifugal pumps, compressors, fan shafts and transmission equipment. They also appear in machine tools, packaging equipment and compact hydraulic systems. In all cases they perform the same function: keeping oil or grease inside the assembly and preventing contaminants from entering that accelerate wear on bearings and gears.
To install it, clean the housing and shaft, verify that there are no burrs or deep marks and lubricate the lip with the same grease or oil as the equipment. The seal must enter perpendicular, without direct blows to the lip; use a tube or shim that rests on the outer diameter. If the shaft shows wear, evaluate a nearby size or a repair sleeve. Selection depends on speed, temperature and type of fluid, data that should be confirmed with the manufacturer.
If you need an equivalent or a close size, send us code 6643Pol or the shaft, housing and height dimensions via WhatsApp. At MR Accesorios Industriales we check your inquiry against the manufacturer's data sheet and offer alternatives from the same brand or another line when the application allows. The more data you send us — type of equipment, rotation speed and fluid — the more accurate the proposal will be.
MR Accesorios Industriales carries the DBH brand as part of its line of seals and oil seals. If you have doubts about the compatibility of this seal with your equipment, write to us on WhatsApp with the code and dimensions; we reply with the available technical information and, if needed, we handle the quote for the part that best fits your need.
Dimensions
- Shaft (d)
- 17.5mm
- Housing bore (D)
- 28.5mm
- Height (h)
- 6.00mm
- Design
- Lz
Frequently Asked Questions
- What dimensions does the DBH 6643Pol oil seal have?
- According to the manufacturer's data, the 6643Pol oil seal has a 17.5 mm shaft diameter, a 28.5 mm housing diameter and a 6.00 mm height. It is an Lz design seal, with a single lip and spring, for lubricated rotating shafts.
- How do I know if this oil seal replaces the one in my equipment?
- Compare the three dimensions: shaft, housing and height. If they match 17.5 x 28.5 x 6.00 mm, the seal is dimensionally compatible. Also check the condition of the shaft and housing, because wear may require a different size.
- Can I request a nearby size or an equivalent?
- Yes. Send code 6643Pol or your equipment's dimensions via WhatsApp and we offer available alternatives. If the application allows, we evaluate other brands or lip configurations to achieve the same sealing.

