Radial shaft seal DBH 6871Pol — 42.00 x 56.00 x 7.00

DBH 6871Pol is a radial shaft seal reference, within Seals. Request a quote for 6871Pol via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 6871Pol oil seal is a radial seal with a 42.00 mm shaft diameter, 56.00 mm housing diameter and 7.00 mm height, in A 136-R AH design. It is used to retain lubricant and exclude contaminants on shafts that rotate inside a housing. It is a key part in gearboxes, pumps, electric motors and power transmission equipment, where sealing prevents losses and protects the bearings. MR Accesorios Industriales carries this official brand and advises you so you choose the correct seal.

This item is a DBH radial shaft seal, identified by the designation 6871Pol. Its dimensions are 42.00 mm shaft diameter (d), 56.00 mm housing diameter (D) and 7.00 mm height (h). The A 136-R AH design corresponds to a single-lip seal with a spring, intended for rotating shafts with lubrication. The 6871Pol nomenclature makes it quick to locate in the catalog and cross-check against the original part. It is a standard replacement part within the seals and radial shaft seals category.

Typical applications for this seal include gearboxes, centrifugal pumps, electric motors, rollers and power transmission equipment. In all cases, the seal serves two functions: retaining the oil or grease inside the assembly and preventing the entry of dust, water or particles. Because of its 42 x 56 x 7 mm size, it is common in medium-sized equipment, where axial space is limited. It is also used as a replacement in corrective maintenance of industrial machines.

To install this seal, check that the shaft diameter is within the recommended tolerance and that the running surface has no burrs or marks. Lubricate the lip before inserting it and install the seal with a press or suitable tool, applying uniform force on the outer ring. It is important that the housing is clean and undamaged. If the shaft shows wear, consider a repair sleeve or an alternative size. Correct alignment between shaft and housing extends the service life of the seal.

If you need an equivalent seal or a nearby size, the most practical approach is to send us the code 6871Pol or the dimensions 42 x 56 x 7 mm by WhatsApp. With that data, the MR Accesorios Industriales team can look for alternatives in other brands or configurations, always respecting the dimensions and design type. We can also advise you if the space allows variants with a double lip or materials specific for high temperatures or chemical exposure.

To request a quote for the DBH 6871Pol oil seal or ask about a similar size, send the code directly by WhatsApp to MR Accesorios Industriales. We will reply with the purchasing options. If you have doubts about the application, send us a photo of the part or the housing and we will help you confirm that it is the correct model. With more than 80 years in the industry, at MR we provide technical support so your equipment keeps running.