Radial shaft seal DBH 9521/85 — 20.00 x 30.00 x 7.00/8.00

DBH 9521/85 is a radial shaft seal reference, within Seals. Request a quote for 9521/85 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The DBH 9521/85 radial shaft seal is a lip seal designed for rotating shafts. Its function is to retain lubricant inside the housing and prevent the entry of dust, water or particles. With dimensions of 20 mm shaft, 30 mm housing and a height of 7.00/8.00 mm, it is press-fitted into the bore and runs on the shaft with a flexible lip. It is a key component in pumps, electric motors, gearboxes and similar equipment.

This item is a radial shaft seal from the DBH brand, identified by the designation 9521/85. Its dimensions are: shaft diameter 20 mm, housing diameter 30 mm and height 7.00/8.00 mm. The Lx design indicates a configuration with a sealing lip and a spring that ensures constant contact on the shaft. The double height (7.00/8.00 mm) allows some adaptability during mounting, as long as the bore is respected. It is a precision component that requires a polished shaft surface free of burrs for effective sealing.

Typical applications for this oil seal include centrifugal pumps, electric motors, gearboxes, compressors and power transmission equipment. In all these cases, the seal prevents oil or grease leaks and protects bearings and gears from the entry of contaminants. Its compact size makes it suitable for equipment with small-diameter shafts, where space is limited and reliable sealing is needed under continuous rotation.

To correctly select this oil seal, verify that the shaft diameter is 20 mm with the appropriate tolerance and that the housing is 30 mm. The mounting height must match the available bore; the 7.00/8.00 mm variant offers flexibility. It is essential that the shaft has the appropriate hardness and roughness to maximize lip life. During mounting, lubricate the lip and avoid damaging it with sharp edges. If the equipment operates at high speeds or temperatures, ask about special materials.

If you need an equivalent oil seal or a nearby size, contact MR Accesorios Industriales. We can look for alternatives with the same or similar dimensions. To speed up your inquiry, have the part number 9521/85 and the shaft and housing dimensions on hand. We can also advise you on the most suitable design for your specific application, considering speed, temperature and type of lubricant.

To request a quote for this DBH 9521/85 oil seal or ask about other sizes, write to us on WhatsApp. At MR Accesorios Industriales we serve you with the experience of more than 80 years in the industry. Send us the part number and your equipment dimensions to receive a fast and accurate response.