Wheel End Assembly and Axle Spindle Interface Dimensions--Truck and Bus

Standard:
Revised:
  • 2014-07-30
 
  • CURRENT
Publisher:
  • SAE International
Pages:
5
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, I80, L, N, P, R, U, and W.

Rationale:

Figure 2, configuration I80 may produce a condition where bearing “B” axial contact area with the spindle seat becomes zero. Changing the radii on the spindle and bearing (by means of a different bearing part number) increases this bearing area. This is R2 on Figure 2 for configuration I80 and was 6.10(.240). The prior bearing is now listed in footnote 2 as a legacy configuration. Axle configurations were alphabetized in the scope and figures. In the procedure clarification was made that the line of maximum material condition is for the spindle. Some dimensions were updated to reflect current industry practices: R3 is now a range in Figures 1, 2, and 3. Figure 2 J MIN 14.22 (.560) was 18.29 (.720). Figure 3 J MIN 24.80 (.976) was 26.00 (1.024). Figure 2: Footnote 1 added under R2 column for FF configuration. Figure 3: Footnotes shown as 1,2,3 were *, ^, " respectively. The * (now (1)) was deleted from the R2 header. Footnote (3) shown with the R3 header and deleted the " (now (3)) from the individual dimensions in that column. R1, R2, R3 were replaced with R1, R2, R3 in the definitions for consistency.

History:
Standard Published Revision Status
J2475_201407 2014-07-30 Latest Revised
2008-08-22 Historical Revised
2005-03-21 Historical Revised
2000-01-24 Historical Issued
AKA:
  • SAE J 2475
Sector:
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