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Outboard Mounted Brake Drum/Disc Wheel Hub Interface Dimensions - Truck and Bus
- Ground Vehicle Standard
- J1671_201502
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This recommended practice contains dimensions and tolerances for outboard mounted brake drums and disc wheel hubs in the interface areas. This recommended practice is intended for outboard mounted brake drums and disc wheel hubs commonly used on class 7 and 8 commercial vehicles. Included are SAE J694 mounting systems II, III, IV, XIV, and X. Special and less common applications are not covered.
Rationale
This document is currently under a five year review. The object of this document is to establish dimensional standardization within the interference areas of outboard mounted brake drums and hubs for disc wheels. Inch dimension tables have been added to this document where metric mounting system tables are referenced. In Tables 1 and 3 a maximum “E” dimension has been added. All other design parameters remain unchanged except for conversion to English dimensions and rounding. Figures 1 and 3 have been revised to show the wheel backup diameter “G” as a reference dimension per SAE J694. Other changes were general formatting.
Recommended Content
| Ground Vehicle Standard | Disc Wheel and Hub or Drum Interface Dimensions - Truck and Bus |
| Ground Vehicle Standard | Wheel Nut Seat System Test Procedures and Performance Requirements for Passenger Cars and Light Trucks |
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| TABLE 1A | ( ) - DRUM INTERFACE DIMENSIONS ALL DIMENSIONS IN MILLIMETERS | |
| TABLE 1B | ( ) – DRUM INTERFACE DIMENSIONS ALL DIMENSIONS ARE IN INCHES | |
| TABLE 2A | ( ) - HUB INTERFACE DIMENSIONS ALL DIMENSIONS IN MILLIMETERS | |
| TABLE 2B | ( ) – HUB INTERFACE DIMENSIONS ALL DIMENSIONS ARE IN INCHES | |
| TABLE 3 | ( ) - DRUM INTERFACE DIMENSIONS ALL DIMENSIONS IN INCHES | |
| TABLE 4 | ( ) - HUB INTERFACE DIMENSIONS ALL DIMENSIONS IN INCHES |
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 |
|---|---|
| J393_201710 | Nomenclature - Wheels, Hubs, and Rims for Commercial Vehicles |
| J694_201505 | Disc Wheel and Hub or Drum Interface Dimensions - Truck and Bus |
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