DBH 5803 radial shaft seal — 44.45 x 70.05 x 12.7

DBH 5803 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 5803 and any equivalents.

The DBH 5803 is a radial shaft seal designed to keep lubricant in and contaminants out of rotating equipment. Its Mz configuration features a sealing lip and a metal case that presses into the housing. Common installations include gearboxes, pumps, electric motors, and power transmission drives where the shaft turns continuously and a reliable barrier is required.

The seal is specified by its part number and three key dimensions: shaft 44.45 mm, housing 70.05 mm, and width 12.70 mm. The Mz designation indicates a lip seal with a metal reinforcement for press-fit mounting. Before ordering, confirm these measurements against your shaft and bore, as even small deviations can affect fit and sealing performance.

Typical uses for the DBH 5803 include gearboxes, centrifugal pumps, electric motors, rollers, and transmission equipment. In each case, it retains oil or grease within the assembly and blocks dust, water, and particles from entering. As a wear component, the lip can harden or wear over time, leading to leaks that should be addressed before they damage bearings or gears.

When selecting a replacement, match the shaft diameter, housing diameter, and width to the original. The Mz design defines the lip and reinforcement style, so if the existing seal has a different geometry, verify compatibility. During installation, lubricate the lip, slide it carefully onto the shaft without twisting, and ensure the housing is clean and free of burrs. Improper installation is a leading cause of premature leakage.

If you need this seal or an equivalent, provide the original code, shaft diameter, housing diameter, and width. Our team can also help if the Mz design does not match your equipment and a variant with a different lip or reinforcement should be considered.

MR Industrial Accessories supplies the DBH brand as part of its seals and oil seals line. If you have code 5803 or the dimensions, send them via WhatsApp or email to request a quote. You can also inquire about other sizes in the same family or seals for specific applications.