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DBH radial shaft seal, special design A 277, cross-section view · DBH 6868
Radial shaft seal DBH 6868 — 18.00 x 29.25 x 8.50/10.50

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Radial shaft seal DBH 6868 — 18.00 x 29.25 x 8.50/10.50

Manufacturer Part Number
6868
Brand
DBHOfficial brand
Category
Seals
Subcategory
Radial shaft seals

DBH

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Description

DBH 6868 is a radial shaft seal reference, within Seals. Request a quote for 6868 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 6868 oil seal is a single-lip radial shaft seal that mounts on an 18 mm shaft and inside a 29.25 mm housing, with a height of 8.50/10.50 mm and design A 277. Its function is to retain lubricant inside the assembly and stop dust, water or particles from entering, protecting bearings, bushings and gears in rotating equipment. It is available as an official brand that MR carries, with the size ready to request a quote on WhatsApp.

This DBH 6868 oil seal has a shaft diameter of 18 mm, a housing diameter of 29.25 mm and a height of 8.50/10.50 mm. Design A 277 corresponds to a spring-loaded radial lip, designed for rotating shafts with permanent lubrication. The double height allows it to be seated in cavities with a shoulder or in covers that require deeper seating. It is a direct replacement part: it is identified by code 6868 and by its three dimensions.

It is used in gearboxes, pumps, electric motors, compressors, mixers and transmission equipment where a shaft rotates inside a housing and oil or grease must be contained. It also appears in road, agricultural and continuous-process machinery, where the oil seal is the most economical barrier against contamination. If the equipment operates with heavy vibration or temperature, it is advisable to check the condition of the lip before replacing it.

To install it, check that the shaft is polished, free of burrs and scores, and that the housing has no dents. Lubricate the lip with the same grease or oil used in the equipment before inserting it, and seat the part straight, without striking the lip with metal tools. If the shaft shows wear, consider a neighboring size or an oil seal with an offset lip. Selection depends on the type of lubricant, speed and operating temperature.

If you need an equivalent or a different size, send code 6868, the shaft diameter and the housing diameter, and the available height. With that data, the closest option is found within the DBH line or other brands that MR carries. You can also send a photo of the old oil seal or the housing drawing. The more precise the dimensions, the faster the quote is resolved.

MR Accesorios Industriales carries the DBH brand as an official brand, with more than 80 years of experience in bearings, power transmission and sealing. To request a quote for the 6868 oil seal or ask about a neighboring size, write to us on WhatsApp with the code and the shaft and housing dimensions. The technical team confirms the designation and replies with the available alternative.

Dimensions

Shaft (d)
18mm
Housing bore (D)
29.25mm
Height (h)
8.50/10.50mm
Design
A 277

Frequently Asked Questions

What are the dimensions of the DBH 6868 oil seal?
The DBH 6868 oil seal has an 18 mm shaft diameter, a 29.25 mm housing diameter and a height of 8.50/10.50 mm. Design A 277 corresponds to a spring-loaded radial lip. These are the dimensions listed in the manufacturer's data sheet and are confirmed before quoting.
How do I ask for a neighboring size or an equivalent?
Send code 6868, the shaft diameter, the housing diameter and the available height on WhatsApp. With that data, the closest option is found within the DBH line or other brands that MR carries. If you can, attach a photo of the old oil seal or the housing.
What should I check before installing an oil seal?
Check that the shaft is polished and free of burrs, that the housing has no dents and that the lip is lubricated with the same oil or grease used in the equipment. Seat the part straight and without striking the lip. If the shaft is worn, consider a neighboring size or an oil seal with an offset lip.
Request a quote on WhatsApp