SAE J393:2017 pdf free

SAE J393:2017 pdf free.Nomenclature – Wheels, Hubs, and Rims for Commercial Vehicles
RIM CENTERLINE: An imaginary line bisecting the rim width of a disc wheel or demountable rim – equivalent to“rim center plane” (Figure 2).
HUB ASSEMBLY: A system which provides the interface between an axle and one or two-disc wheels (Figures 4 and 7).
WHEEL ASSEMBLY FOR DEMOUNTABLE RIM (SPOKE WHEEL ASSEMBLY): A system which provides the interface between an axle and one or two demountable rims (Appendices A and B).
HIGHWAY USE: A speed of over 30 mph on improved roads.
RADIAL RUNOUT: Total indicator reading in the radial direction, taken at the rim bead seat, for one revolution, with the wheel located on the specified datum (Figure 5).
LATERAL RUNOUT: Total indicator reading in the lateral direction, taken at the rim flange, for one revolution, with the wheel located on the specified datum (Figure 6).
DATUM: The combination of physical features used to locate a wheel during runout measurement (Figures 5 and 6).
AVERAGE RADIAL RUNOUT: The total indicator reading obtained by simultaneously averaging radial runout readings at both rim bead seats (Figure 5).
AVERAGE LATERAL RUNOUT: The total indicator reading obtained by simultaneously averaging lateral runout readings at both rim flanges (Figure 6).
ABS RING: A ferromagnetic annular feature or component presenting a series of uniform air gaps for sensing wheel rotational speed (Figure 4).
INSET WHEEL: A wheel so constructed that the rim centerline is located inboard of the attachment face of the disc. Inset is the distance from the attachment face of the disc to the centerline of the rim (Figure 3).
ZEROSET WHEEL: A wheel so constructed that the rim centerline is coincident with the attachment face of the disc (Figure 3).
OUTSET WHEEL: A wheel so constructed that the rim centerline is located outboard of the attachment face of the disc.Outset is the distance from the attachment face of the disc to the centerline of the rim (Figure 3).
CARTRIDGE BEARING: A self-contained non- serviceable assembly comprising complete inner and outer bearings with seals and lubricant, for insertion into a hub (Figure 7).SAE J393 pdf free download.