Bolted pilot web with precision machined bearing stop
View Patent ↗An improved differential carrier and pilot web for a vehicle comprises a carrier and a separate pilot web. The pilot web is attached to the carrier by at least two bolts. At least two bolts are each covered by a bushing. The carrier and the pilot web each preferably comprise counter bored holes to receive and support the bolt and bushing. The carrier and the pilot web each also have a mating stop surface, which are precision machined to be a minimal distance from one another.
1. A pilot web and differential carrier assembly, comprising:
a pilot web comprising a first end and a second end, at least one aperture is located at each of said first and second ends;
a differential carrier comprising at least two apertures in complementary locations to said apertures of said pilot web;
a first stop on said pilot web, said stop being located at substantially the midpoint between said first end and said second end;
a second stop on said differential carrier, said second stop being disposed adjacent to, and aligned with, said first stop, wherein said first and second stops define a gap therebetween;
at least two bolts disposed through said respective apertures of said pilot web and said differential carrier; and
at least two bushings, said bushings being disposed about corresponding ones of said at least two bolts.
2. The pilot web and differential carrier assembly according to claim 1 , wherein each end of said pilot web comprises a single aperture, and said differential carrier comprises two apertures in complementary locations to said apertures of said pilot web.
3. The pilot web and differential carrier assembly according to claim 1 wherein each end of said pilot web comprises two apertures, and said differential carrier comprises four apertures in complementary positions to said apertures of said pilot web.
4. The pilot web and differential carrier assembly according to claim 3 , comprising four bolts disposed through said complementary apertures of said pilot web and said differential carrier.
5. The pilot web and differential carrier assembly according to claim 3 , comprising four bushings, each of said bushings being disposed about a corresponding one of said bolts.
6. The pilot web and differential carrier assembly according to claim 3 , comprising two bushings, one of said bushings being disposed about a corresponding one of said bolts at said first end of said pilot web, and the other of said bushing being disposed about a corresponding one of said bolts at said second end of said pilot web.
7. The pilot web and carrier assembly according to claim 1 , wherein each of said apertures in said pilot web and each of said apertures in said differential carrier which correspond to one of said bushings is counter bored to receive the bushing.
8. The pilot web and carrier assembly according to claim 1 , wherein each of said bushings comprises steel.
9. The pilot web and carrier assembly according to claim 1 , wherein the gap between said first stop and said second stop is about 0.002 inch when not under load.
10. The pilot web and carrier assembly according to claim 1 , wherein the gap between said first stop and said second stop is selected to essentially maximize transfer of forces from the pilot web to the carrier.