Floating oil seal part numbers 16Y1800008, 16Y-18-00008, 16Y1800009, and 16Y-18-00009 are for bulldozer SD16 spare parts.

Floating oil seal part numbers 16Y1800008, 16Y-18-00008, 16Y1800009, and 16Y-18-00009 are for bulldozer SD16 spare parts.

The floating oil seal in a bulldozer is a special type of end-face mechanical seal specifically designed for reliable sealing of rotating shafts in extremely harsh, dusty, muddy, and impact- and vibration-prone working environments (primarily preventing lubricating oil leakage and the ingress of external contaminants such as water and sediment).

Core Structure:

A pair of precision-fitting metal sealing rings (usually two): This is the core of the floating oil seal. One ring (stationary ring) is typically fixed in a sealing groove in the housing (such as a gearbox housing or track roller frame) and remains stationary. The other ring (rotating ring) is fixed in a sealing groove in a rotating component (such as a drive shaft or hub) and rotates with the shaft.

A bulldozer floating oil seal is a core component that achieves sealing by using a pair of precisely fitted metal end faces pressed together and sliding relative to each other under the action of an elastic element (O-ring). Its "floating" characteristic allows it to effectively adapt to the severe impacts, vibrations, and shaft changes experienced by the bulldozer's traveling system. Its robust and durable metal end face design resists dusty, muddy, and abrasive environments, thus reliably protecting the expensive internal bearings, gears, and lubricating oil from contamination or leakage. It is a key sealing element ensuring the long-term reliable operation of the bulldozer's traveling system. When a bulldozer experiences oil leakage in the traveling mechanism or abnormal damage to internal bearings, the floating oil seal is often one of the first components to be checked.