Wheel Nomenclature
Wheel Nomenclature
MACHINED EXTREME SERVICE (MES)
Interchangeable with industry standard products

DOUBLE GUTTER SERVICE (DGS)
uses TSR Componentry & Two-Piece Lock Ring Design

Recommended Inspection Interval Guidelines
Haul Trucks
New Rims: (e.g. KOM 730E) 15 000 hrs
Wheels: (e.g. CAT 789) 15 000 hrs
5000 hour interval there after
Wheel Loaders
Wheels: (e.g. CAT 994) 10 000 hrs
5000 hour interval there after
Single Piece Lock Ring Safety
20” – 63” [EM, EMH, HDT, TSR, MS/T]
CORRECT OVERLAP

2” overlap
STRETCHED

minimal overlap or ends touching
SCRAP

no overlap–ends NOT touching
20” – 49” [EV/T]
CORRECT OVERLAP

2” overlap
STRETCHED

minimal overlap or ends touching
SCRAP

no overlap–ends NOT touching
Industry Standard Lock Rings





LOCK RING PROFILES
TSR & EMH Lock Rings
Not interchangeable with industry standard products

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