MIL-S-46777C
TABLE III. Semitrailer specifications (continued).
VMRS No. Feature Requirements
VMRS 17-008
VMRS 18-003-001
VMRS 18-004
VMRS 18-004-002
Valve.
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 wheels.
For 11.00-22 tires, furnish NWRA Wheel No. X-4927 size 22-8.0 wheels.
Hub, Rear-Wheel.
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 furnished.
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:
Position
- Bearing cone, inner
- Bearing cone, outer
- Bearing cup, inner
- Bearing cup, outer
VMRS 18-004-011
VMRS 18-004-017
Group 30.
Prefered Set
HM218248
HM212049
HM218210
HM212011
Seal - Oil, Wheel.
Lube oil seals per TTMA RP No. 43.
Dust Cap, Rear Wheel Hub.
Visual dust caps for oil lube level.
Electrical
Optional Set
JE9549
JHM516849
JE9510
JHM516810
Vehicle electrical system per DOT, California Vehicle Code, SAE Handbook, TMC-ATA RP Manual, and TTMA RP No. 9 and No. 14.
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