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DBH type Mx radial shaft seal, double lip with one spring, in section · DBH 8748
Radial shaft seal DBH 8748 — 49.00 x 59.35 x 11.50

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Radial shaft seal DBH 8748 — 49.00 x 59.35 x 11.50

Manufacturer Part Number
8748
Brand
DBHOfficial brand
Category
Seals
Subcategory
Radial shaft seals

DBH

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Description

DBH 8748 is a radial shaft seal reference, within Seals. Request a quote for 8748 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 8748 radial shaft seal is a lip seal that mounts on the shaft and closes against the housing to retain lubricant and block the entry of dust, water or particles. Its dimensions of 49 mm shaft, 59.35 mm housing and 11.50 mm height place it in power transmission applications and rotating equipment where axial space is limited. MR Accesorios Industriales carries this official brand and advises you so you choose the right seal for your equipment.

The DBH 8748 is an Mx design seal, with the three dimensions that define its mounting: shaft diameter 49 mm, housing diameter 59.35 mm and height 11.50 mm. These are the dimensions you must verify before ordering, because the lip's proper interference fit on the shaft and the outer diameter's fit in the bore without deforming depend on them. The designation 8748 identifies this size within the DBH line.

It is used in gearboxes, pumps, electric motors, rollers and transmission equipment where a rotating shaft exits a lubricated housing. It also appears in applications exposed to dust or splashes, where the seal keeps contaminants from reaching the bearing or gear. It is a wear part: when the lip hardens or becomes marked, it starts losing oil and should be replaced before the damage reaches the bearing.

To install it, clean the shaft and housing, verify there are no burrs or drag marks and lubricate the lip with the same oil used in the equipment. The seal is inserted perpendicular, without striking the lip, using a tube or driver that presses on the outer ring. If the shaft shows wear in the contact area, consider a nearby size or a seal with the lip in another position; do not force the same size onto a worn track.

If you cannot find the 8748 or need a nearby size, send us the shaft, housing and height dimensions along with a photo of the old seal. With that data we look for the equivalent in DBH or another brand we carry, or we tell you whether a nearby size is advisable. We can also check the condition of the shaft and housing to rule out that the problem is the contact track and not the seal.

To request a quote for the DBH 8748 seal, write to us on WhatsApp with part number 8748 or with the dimensions 49 x 59.35 x 11.50 mm. At MR Accesorios Industriales we quote the size and help you determine whether it is the seal that matches your equipment. If you have doubts about the Mx design or the lip material, ask us before buying and avoid replacing a part that was not the cause of the leak.

Dimensions

Shaft (d)
49mm
Housing bore (D)
59.35mm
Height (h)
11.50mm
Design
Mx

Frequently Asked Questions

What are the dimensions of the DBH 8748 seal?
It corresponds to a 49 mm shaft, a 59.35 mm housing and an 11.50 mm height. These are the three dimensions that define the mounting and the ones you should verify with a caliper before ordering, because a seal of another size will not seal correctly.
How do I know if the Mx design is what my equipment needs?
The Mx design defines the shape of the seal and how the lip seats. To confirm it, compare the old seal with the new one: same outer diameter, same height and lip in the same position. If you have doubts, send us a photo on WhatsApp and we will review it.
Can I replace the 8748 with a nearby size?
Only if the shaft or housing is worn and the original size no longer seals. In that case, a slightly oversized seal or a wear sleeve is evaluated. Ask us with the actual shaft and housing dimensions before deciding.
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