DBH 9643 radial shaft seal

DBH 9643 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 9643 and any equivalents.

The DBH 9643 is a radial shaft seal in an A 271 design, sized for a housing bore of 57.00 mm and a height of 10.50 mm. Its role is to keep lubricant contained while blocking dust, water, and other contaminants that shorten the life of bearings and bushings. You will find it in gearboxes, pumps, electric motors, and other transmission equipment where a rotating shaft passes through a fixed housing.

This seal carries part number 9643 and belongs to the DBH line. The data sheet lists an A 271 profile, a housing outer diameter of 57.00 mm, and a height of 10.50 mm. The shaft dimension appears as 0 mm, which is not treated as a real mounting size; it is verified against the manufacturer's data before any order is released. The lip and case materials are the standard ones used in the DBH line for general service.

Seals like this one separate two environments: the lubricated interior and the exposed exterior. Typical installations include gearboxes, centrifugal pumps, motors, spindles, mixers, and machine tools. They also serve as a secondary barrier on roller or ball bearings mounted in through housings, particularly where dust, chips, or process water are present.

When selecting a replacement, confirm the housing bore diameter, the available height in the housing, and that the lip profile suits the speed and lubricant in use. During installation, keep the seal clean, avoid striking the lip, and press it in with a tube or shim that contacts only the outer ring. Lubricating the lip with the same grease or oil used in the equipment before sliding the shaft through is recommended.

If part number 9643 does not match the size on your machine, send the actual housing dimensions, the height, and a photo of the old seal. With that information we can look for an option within the DBH line or another brand we supply. We can also advise whether the A 271 design fits your application or whether a different lip profile would be better.

MR Industrial Accessories LLC supplies the DBH brand as part of its seals and oil seals range. For a quote on this part number or to ask about an equivalent size, contact us on WhatsApp with part number 9643 and your equipment dimensions. We will reply with the corresponding reference and purchasing details.