SAE J2475:2020 pdf free

SAE J2475:2020 pdf free.Wheel End Assembly and Axle Spindle Interface Dimensions – Truck and Bus
This recommended practice contains dimensions and tolerances for spindles in the interface area. Interfacing components include axle spindle, spindle threads, 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, 180,L,N,P, R, U, and W.
1.1 Purpose
The purpose of this recommended practice is to establish dimensional guidelines to promote a functional standardization of spindle dimensions for wheel end assemblies. Proper hub component dimensions can then be established.
2. REFERENCES
2.1 Related Publications
The following publications are provided for information purposes only and are not a required part of this SAE Technical Report.
2.1.1 SAE Publications
Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.
SAE J393 Nomenclature – Wheels, Hubs, and Rims for Commercial Vehicles
SAE J1842 Disc Wheel Hub/Spoke Wheel and Axle Interface Dimensions – Truck and Bus
3. DEFINITIONS
A list of basic nomenclature is described in 3.1 and shown in Figures 1, 2, and 3.
3.1 Feature Definitions
A: Typical outboard bearing cone (per American Bearing Manufacturers Association (ABMA))
B: Typical inboard bearing cone (per ABMA)
C: Inboard bearing cone spindle length
D: Spindle transition length
E: Outboard bearing cone spindle starting length
F: Outboard bearing spindle diameter
G: Spindle transition diameter
H: Inboard bearing spindle diameter
J: Seal shoulder length
K: Seal shoulder diameter
R1: Spindle transition fllet radius
R2: Inboard bearing spindle fllet radius (per ABMA)
R3: Seal shoulder fllet radius
4. PROCEDURE
A line of maximum material for the spindle is established as shown in the figures with dimensions. All dimensions are in millimeters (inches).
Figure 1 and Table 1 refer to trailer axles.
Figure 2 and Table 2 refer to non-powered front axles.
Figure 3 and Table 3 refer to powered rear axles.
Table 4 refers to spindle threads for all axle configurations.SAE J2475 pdf free download.