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Setting Preload in Heavy-Duty Wheel Bearings
- Ground Vehicle Standard
- J2535_201910
- Stabilized
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Recommended Practice applies to the four primary, large volume applications in the class 7-8 heavy-duty market place, as specified in SAE J1842:
-
a
“N” trailer axle
-
b
“R” powered rear axle
-
c
“FF / FG” nonpowered front axle
-
d
“P” trailer axle
This document applies to on-highway applications. It is not applicable to those applications that exceed the GAWR ratings or the load line restrictions listed in columns “A,” “B,” and “C” of Table 1. Load lines are measured from the inboard bearing cup backface as shown in 3.4.
This document establishes preload force values only. The methodology to obtain these force values must be determined by the fastener supplier and/or axle assembler.
This document reviews the bearing system. It is NOT intended to prescribe (new or existing) axle and/or hub manufacturers’ ratings and/or specifications.
Rationale
This Recommended Practice is being stabilized because it covers technology and procedures which are not likely to change in the foreseeable future. The bearing combinations addressed are mature designs.
Recommended Content
| Ground Vehicle Standard | Disc Wheel Hub/Spoke Wheel and Axle Interface Dimensions - Truck and Bus |
| Ground Vehicle Standard | Fatigue Test Procedures: Hubs and Wheels for Demountable Rims |
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| TABLE 1 | PRELOAD SETTINGS | |
| TABLE 2 | CONSTANTS | |
| TABLE 3 | LINE HAUL DUTY CYCLE | |
| TABLE 4 | CITY DELIVERY DUTY CYCLE | |
| TABLE 5 | MINIMUM AND MAXIMUM AXLE WEIGHTS AND LOAD LINES |
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 |
| J393_201710 | Nomenclature - Wheels, Hubs, and Rims for Commercial Vehicles |
| TMC RP-618 | This document is not part of the subscrption. |
| TMCRP618 | This document is not part of the subscrption. |
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