Where do the spider gears in a differential go?
The spider gears transmit the force from the differential cage through the pinion shaft (goes across the case with the spider gears at each end) to the side gears, but they don’t rotate on the center pinion shaft.
Where does the force come from in the spider gears?
The spider gears transmit the force from the differential cage through the pinion shaft (goes across the case with the spider gears at each end) to the side gears, but they don’t rotate on the center pinion shaft. No issue here.
When does a spider gear become a problem?
It can, conceivably, become a problem, however, if the two wheels/tires are not the same circumference (e.g., using the donut spare), or if one wheel is allowed to spin relative to the other for an extended time.
Why are spider gears not used for pinion drive?
Because the spider gears, for the most part, normally don’t rotate fast or constantly on the pinion shaft, they don’t have to have the type of bearings and thrust controls that, say, the pinion drive gear or the side gears require.
The spider gears transmit the force from the differential cage through the pinion shaft (goes across the case with the spider gears at each end) to the side gears, but they don’t rotate on the center pinion shaft.
Because the spider gears, for the most part, normally don’t rotate fast or constantly on the pinion shaft, they don’t have to have the type of bearings and thrust controls that, say, the pinion drive gear or the side gears require.
The spider gears transmit the force from the differential cage through the pinion shaft (goes across the case with the spider gears at each end) to the side gears, but they don’t rotate on the center pinion shaft. No issue here.
Where are the bearings on a spider gear?
The spider gears don’t have bearings — they are simply loose fit on the pinion shaft. There are washers between the back of the spider gears and the differential case.