Radial shaft seal DBH 6644 — 40.00 x 72.00 x 11.50

DBH 6644 is a radial shaft seal reference, within Seals. Request a quote for 6644 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 6644 radial shaft seal is a lip seal mounted in the housing and sealing against the rotating shaft. Its function is to retain lubricant inside the assembly and block the entry of dust, water or particles. With dimensions of 40 mm shaft, 72 mm housing bore and 11.50 mm height, and Lz design, it is a direct replacement part for equipment with that housing. It is available at MR Accesorios Industriales, which carries the DBH brand.

This item is a radial shaft seal from the DBH line, identified by part number 6644. Its dimensions are 40 mm shaft diameter, 72 mm housing bore and 11.50 mm height. The Lz design corresponds to a single-lip configuration with spring, suitable for rotating shafts in general applications. The elastomer and the internal spring work together to maintain contact on the shaft and compensate for small misalignments. The 6644 designation allows it to be located unambiguously in catalogs and spare parts lists.

Radial shaft seals such as the DBH 6644 are used in gearboxes, pumps, electric motors, rollers and transmission equipment. Their task is twofold: to prevent oil or grease leaks and to stop the entry of contaminants that accelerate wear on bearings and gears. In industrial plants, workshops and process lines, this type of seal appears on fan, mixer, conveyor and machine tool shafts. It is always advisable to verify that the housing and shaft are in good condition before replacing.

To select and install a seal, the three dimensions must be respected: shaft diameter, housing bore and height. A scratched or worn shaft means the lip does not seal properly, so it is recommended to check the surface and, if necessary, use a wear sleeve. The seal is inserted with a press or mounting tube, never by striking the lip. Before fitting it, lubricate the lip with the same grease or oil used in the equipment. If the housing has burrs, clean it and check concentricity.

If you need a nearby size or an equivalent to the DBH 6644, the most practical approach is to send the part number and current dimensions. A photo of the old seal or the housing, where the numbers are legible, also works. With that data, MR Accesorios Industriales looks for the alternative within the same brand or another compatible line. There is no need to guess: if the shaft or housing has a different size, the corresponding variant is quoted.

To request a quote for the DBH 6644 seal, send the part number by WhatsApp to MR Accesorios Industriales. If you have doubts about the size, attach a photo of the part or the drawing. This confirms the item and avoids purchasing errors. The DBH brand is an official brand that MR carries, and the website allows you to locate the product by its part number and dimensions.