DBH 9975 radial shaft seal — 21 x 41.3 x 4

DBH 9975 belongs to radial shaft seal, part of our Seals range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 9975 and any equivalents.

The DBH 9975 radial shaft seal is a lip seal that prevents oil, grease, or contaminants from escaping along a rotating shaft. It has a shaft diameter of 21 mm, a housing diameter of 41.30 mm, and a height of 4.00 mm, and it features the A 360 design. The seal is press-fitted into the housing and its lip runs against the shaft, making it a critical component in gearboxes, pumps, electric motors, and power transmission equipment.

This radial shaft seal is identified by code 9975 and belongs to the DBH line. The designation 21x41.30x4 mm corresponds to shaft 21 mm, housing 41.30 mm, and height 4.00 mm. The A 360 design refers to a specific construction within the DBH seal range. The sealing lip is made of elastomers that resist oils and greases, maintaining tightness during continuous rotation. The outer metal case provides a secure fit in the housing and simplifies press fitting.

Common uses include gearboxes, centrifugal pumps, electric motors, compressors, drive shafts, and general industrial equipment. The seal retains lubricant and blocks foreign particles that would otherwise accelerate wear on bearings and bushings. Its compact size makes it suitable for equipment with limited radial space where effective sealing is needed at moderate speeds. It also appears in agricultural, textile, and process machinery.

When selecting this seal, confirm that the shaft, housing, and height dimensions match your equipment. The shaft surface should be ground and free of burrs; a fine finish helps extend lip life. During installation, lubricate the lip with the same oil or grease used in the equipment and press it in perpendicularly to avoid damage. If the shaft is worn, consider a wear sleeve or an alternative size.

For an equivalent seal, contact us via WhatsApp and provide code 9975 or the dimensions of your original seal. Our team can assist in finding the right part. We also work with other brands and sizes of radial seals, so a compatible alternative may be available. Send a photo or a sketch with dimensions and we will reply promptly.

MR Industrial Accessories supplies the DBH brand as part of its seals and oil seals line. If the DBH 9975 is the seal you need, message us on WhatsApp with the code to request a quote. We can also help identify the correct seal if you provide a sample or the housing and shaft dimensions.