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Wheel End Assembly and Axle Spindle Interface Dimensions—Truck and Bus
- Ground Vehicle Standard
- J2475_200503
- Revised
Sector:
Issuing Committee:
Language:
English
Scope
This recommended practice contains dimensions and tolerances for spindles in the interface area. Interfacing components include axle spindle, bearing cones, bearing spacer, seal and wheel hub. This recommended practice is intended for axles commonly used on Class 7 and 8 commercial vehicles. Included are SAE axle configurations FF, FL, R, N and P. SAE configurations FC, K, L, U, and W are not included, but may be added in the future.
Rationale
The objective of this document is to establish dimensional standardization within the interface areas of the axle spindle, bearing cones, bearing spacer, seal, and wheel hub. This dimensional standardization will assure no interference conditions exist for mating components.
This recommended practice will define and document the dimensions and tolerances necessary to maintain serviceability and interchangeability in the interface areas. The scope of the original document did not include the SAE FL type axle configuration. In addition, the figures of the original document did not fully define bearing spindle diameters or seal shoulder lengths or diameters. These features and axle configurations have been added and are now included in the scope.
There is a need within the industry for a recommended dimensional standard, since without it, improper mating of spacers, spindles and hub may occur.
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Topic
Data Sets - Support Documents
No Datasets Available
Issuing Committee
The responsibility of the Truck and Bus Wheel Committee of the Truck and Bus Brake and Advanced Driver Assistance Systems Steering Committee is to initiate, develop, review and approve the recommended practices, standards, and information reports related to hubs, wheels and the wheel mounting systems of buses, trucks and tractor-trailer combinations intended for highway use. The Wheel Committee is constituted so as to be aware of other SAE wheel activity and to prevent duplication of effort.
Reference
| Number | Title |
|---|---|
| J1842_201402 | Disc Wheel Hub/Spoke Wheel and Axle Interface Dimensions - Truck and Bus |
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