TABLE III. Semitrailer specifications (continued).
Provide metal valve caps w/elastomer seals for all tire assemblies.
Wheel Assembly Disc.
Disc wheels per DOT FMVSS and TRA Year Book.
Tire and wheel assemblies inherently in-balance.
Disc wheels per SAE J694 10-hole heavy duty on-off road type having
standard industry off-set. Wheels not to exceed max. 050-in. radial
and laterial run-out (TIR) or Max. 120-in. oz. out of balance, to
prevent wheel tramp or drumming.
Wide base single type rim and disc made by the same mfgr. or
fabrication approved by rim mfgr.
For 18-22.5 tires, furnish size 22.5-14.00 wheels.
For 12R22.5 tires, furnish NWRA Wheel No. X-4932 size 22.5-8.25
For 11.00-22 tires, furnish NWRA Wheel No. X-4927 size 22-8.0
Axle hubs per SAE J694, 10-stud, 11.25-in. BC, for disc wheels and
with out-board mounted brake drums, when drum type brakes are
Bearing, Rear Wheel.
Standardized tapered roller bearings with cups, bearings, and cones, all
matched in accordance with the bearing and axle manufacturer's
recommendations. Bearings per TMC-ATA Advisory AV6-15.
Standardized bearing sets selected from the following:
Bearing cone, inner
Bearing cone, outer
Bearing cup, inner
Bearing cup, outer
Seal - Oil, Wheel.
Lube oil seals per TTMA RP No. 43.
Dust Cap, Rear Wheel Hub.
Visual dust caps for oil lube level.
Vehicle electrical system per DOT, California Vehicle Code, SAE
Handbook, TMC-ATA RP Manual, and TTMA RP No. 9 and No. 14.