DBH 9735Pol radial shaft seal — 57 x 85 x 12

DBH 9735Pol is a reference of radial shaft seal, within Seals. Request a quote for 9735Pol via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The DBH 9735Pol radial shaft seal is a lip seal mounted between a rotating shaft and its housing to retain lubricant and block the entry of dust, water or particles. Its dimensions are 57 mm shaft, 85 mm housing and 12 mm height, with Mz-Bidi design. It is used in gearboxes, pumps, electric motors and power transmission equipment where there is continuous rotation and contact with a dirty environment.

This item is a DBH radial shaft seal identified as 9735Pol. The commercial designation corresponds to the 9735 series and the Pol ending indicates the compound variant. The published values are: shaft diameter 57 mm, housing diameter 85 mm and height 12.00 mm. The design is Mz-Bidi, that is, a double-lip profile that works with pressure in both directions and improves sealing on shafts with reversible rotation or with lubrication from both sides. The 12 mm height defines the housing width required for mounting.

Typical applications for a seal of this size are in equipment with a 57 mm shaft: gearboxes, speed reducers, centrifugal pumps, electric motors, conveyor rollers and machine tools. In all these cases the seal performs two functions: preventing oil or grease from leaking out and blocking contaminants from entering the bearing or gear. The Mz-Bidi design is useful when the shaft can rotate in both directions or when there is a pressure difference between the lubricated side and the environment.

To select correctly, check that the shaft diameter is within the recommended tolerance for radial shaft seals and that the housing has the diameter and depth corresponding to 85 mm and 12 mm. The shaft surface must be ground and free of grooves that could damage the lip. Before mounting, lubricate the lip with the same grease or oil used in the equipment and use an installation tool that presses on the outer edge, never on the lip. If the shaft shows wear, consider a repair sleeve.

If you need an equivalent, the most practical approach is to send us the full part number 9735Pol along with the shaft, housing and height dimensions. With that data we can search the DBH line or other brands we sell for a seal with the same Mz-Bidi profile or a compatible design. We can also advise you if the housing accepts a different height or if it is better to move to a seal with an additional lip for greater dust protection.

MR Accesorios Industriales sells the DBH brand. If you have questions about installation or want to confirm that this seal is the right one for your equipment, write to us on WhatsApp with the part number 9735Pol and the shaft and housing dimensions. We will reply with a quote.