What is the bearing in the middle of the drive shaft?
center support bearing
Connecting the two sections of the driveshaft is a center support bearing, which is a “U” shaped metal bracket with a solid-rubber machined bearing on the inside. The bearing is designed to keep both parts of the driveshaft solid in order to reduce harmonic vibration as the vehicle accelerates.
What is center bearing?
Center bearings, or carrier bearings, are intermediate bearing assemblies, found in four wheel drive and front-engine, rear-wheel-drive vehicles, connecting the front and rear drive shafts. As such, center bearings are more commonly found in SUVs and trucks instead of cars.
How long will a bearing last?
When properly maintained, most bearings should last approximately eight to 12 years. Bearing lifespans are represented through a concept called the L10 life.
How are driveshafts attached to center support bearings?
The two driveshaft’s that attach in the center support bearings are attached on opposite sides of the vehicle as well. The front drive shaft is attached to the output shaft coming out of the transmission, while the rear driveshaft’s propeller shaft is attached to the yoke that comes out of the rear axle differential.
Why do you need a center support bearing?
A center support bearing allows the driveshaft to be split into two sections in trucks and SUVs. This is done to extend the length of the driveshaft in these longer vehicles. It supports the two halves of the driveshaft between the transmission and rear differential. Due to constant use, a center support bearing can develop wear and break down.
How do you remove a front drive support bearing?
The front driveshaft is going to be attached solid inside the output shaft supports. In order to remove the driveshaft, you’ll need a rubber or plastic tipped hammer. On the front of the driveshaft is a welding mark that is solid and is the best place to hit with the hammer to loosen the driveshaft.
What happens when a drive support bearing fails?
A failed bearing is unable to support the driveshaft, and as a result the driveshaft will flex, causing a vibration and shuttering sensation that can be felt throughout the vehicle when it’s broken.