DBH 6303 radial shaft seal — 30.1 x 48.97 x 11.11
- Brand
- DBH
- Category
- Seals
- Subcategory
- Radial shaft seals
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Description
DBH 6303 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 6303 and any equivalents.
The DBH 6303 is a radial shaft seal with an Lz design, built to keep lubricant in and contaminants out where a shaft turns inside a housing. Its three key measurements are 30.10 mm for the shaft, 48.97 mm for the housing bore and 11.11 mm for the height. Pressed into place, it works in crankcases, covers and gearboxes, where it helps hold oil in and protect bearings and bushings.
The Lz designation points to a single sealing lip with a spring and a metal outer case. The lip rides against the shaft while the case holds the seal firmly in the bore. In service, the seal keeps oil from escaping and blocks dust, water and particles from reaching the bearing area. That makes it a small but important part of any lubricated rotating assembly.
You will find this type of seal in gearboxes, pumps, electric motors, transmission shafts and process equipment. Food, chemical and manufacturing plants rely on it wherever oil loss or contamination would hurt performance. Machine tools, conveyors and hydraulic systems also use it. Its job is to shield bearings and gears, which helps the assembly last longer and cuts unplanned maintenance.
When choosing a replacement, check the shaft diameter, housing bore and height against the original. The shaft should be clean, free of burrs and scratches, and hard enough to resist wear. The housing needs a chamfer at the entry so the lip is not damaged during installation. Before fitting, coat the lip with the same oil used in the equipment. If the shaft is worn, a repair sleeve or a different size may be the better route.
If you need different dimensions or a comparable seal from another maker, we can help. Send the original part number, the shaft, housing and height measurements, and a note on the application. We will look for a match with the same dimensions where space permits. We can also advise on the lip design that suits your working conditions.
To get a quote for the DBH 6303, message us on WhatsApp. Share the part number and dimensions, and our team will confirm the details so your installation goes smoothly. We also assist with cross-references and selection questions.
Dimensions
- Shaft (d)
- 30.1mm
- Housing bore (D)
- 48.97mm
- Height (h)
- 11.11mm
- Design
- Lz
Frequently asked questions
- What are the dimensions of the DBH 6303 oil seal?
- The DBH 6303 has a 30.10 mm shaft diameter, a 48.97 mm housing diameter and an 11.11 mm height. These are nominal figures for installation; always measure the shaft and housing before fitting.
- What kind of shafts does this oil seal suit?
- It is made for lubricated rotating shafts, such as those in gearboxes, pumps and motors. The Lz design seals against the shaft and retains oil. It is not intended for shafts with large axial movement or very high surface speeds without checking first.
- How do I ask for an equivalent size or another brand?
- Contact us on WhatsApp with the original part number and the shaft, housing and height dimensions. We will search for a compatible alternative and can advise on the lip design for your application.