DBH 1177 radial shaft seal

DBH 1177 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 1177 and any equivalents.

The DBH 1177 is a radial shaft seal built to the A 378 design. It keeps lubricant where it belongs and keeps dust and dirt out of rotating assemblies. The seal fits a housing bore of 63.53 mm, has a height of 7.90 mm and is specified for a 0 mm shaft. It mounts in a housing or cover and shields the bearing and shaft behind it. MR Industrial Accessories LLC supplies this line of seals and can help you confirm the right size for your equipment.

The code 1177 identifies this seal within the DBH range. Its key measurements are: shaft 0 mm, housing 63.53 mm, height 7.90 mm. The A 378 designation describes the lip and housing geometry of the seal, which is what makes it work under rotation. Think of it as a service part: when a seal reaches the end of its life, the replacement restores the barrier that protects the bearing.

Seals of this type show up in gearboxes, pumps, electric motors, compressors and other power transmission equipment. Their job is simple but important. Lubricant stays in, contaminants stay out, and the bearing and shaft surfaces last longer between repairs. That is why they are a standard item on preventive maintenance schedules for rotating machinery.

Installation matters as much as the part. Make sure the housing bore and the shaft are clean and free of burrs. Apply the same oil or grease the equipment uses to the lip before you press the seal in. Drive it in squarely with a tube or socket that matches the outside diameter, and avoid hitting the lip. If the shaft is worn, a seal with an auxiliary lip may be the better choice. Speed, temperature and the fluid in the machine all influence the selection.

If you need a seal that matches the DBH 1177, send us a message on WhatsApp. We can check other brands and configurations against your equipment dimensions. Include code 1177, the shaft and housing sizes, and a photo of the old part. That gives us what we need to come back with a compatible option.

DBH is one of the seal lines we carry. If you are unsure about installation or want to verify a dimension, message us on WhatsApp or email and we will answer promptly. We can also help with the bearings and transmission components that go with your maintenance work.