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SPEC SHEET · K-RB-CAT992G · REV. 02 · 2026

CATERPILLAR 992G
SPEC SHEET

Part code
K-RB-CAT992G
Diameter
49 in / 1 143 mm
Rated load
195 t
Compliance
ISO 4250-3 · AS 4457 · GB/T 2883
01 · DIMENSIONS

CRITICAL DIMENSIONS

Cross-section drawing of the K-RB-CAT992G rim assembly. Five reference dimensions (A–E) are CNC-machined to the tolerances called out in the table and verified on a 5-axis CMM before every unit ships.

CATERPILLAR 992G cross-section dimensions
Figure 1 — Cross-section & dimensionsdrawing K-RB-CAT992G · rev. 02 · 2026
REFDIMENSIONVALUETOLERANCE
ARim base flange-to-flange1 020.5 mm±0.50 mm
BOuter flange ⌀1 143 mm±0.30 mm
CMounting flange ⌀1 108 mm±0.30 mm
DLock-ring seat ⌀1 012.95 mm±0.20 mm
02 · ASSEMBLY

WHEEL-END ANATOMY

The complete CATERPILLAR 992G wheel-end is a five-piece assembly. Every Kelios rim ships as a matched set — rim base, lock ring, side rings, and bead seat band — with the OEM-supplied hub remaining factory original.

CATERPILLAR 992G wheel-end anatomy with labeled components
Figure 2 — Wheel-end anatomycross-section · five-piece assembly
1
Side ring
Pairs with K-SR-51 — outer flange
2
Bead seat band
Pairs with K-BSB-51 — bead interface
3
Lock ring
Pairs with K-LR-S39 / 49" — retaining ring
4
Rim base
This unit — forged HSLA · 6082-T6 — ring-rolled
5
Wheel hub
OEM-supplied — Caterpillar 992G
03 · FEA

FINITE ELEMENT ANALYSIS

Every Kelios rim design is validated under 1.4× rated load in a Von Mises FEA solver before tooling is cut. The K-RB-CAT992G was meshed at refined element size with concentration at the lock-ring seat and bead radii — the two locations where field failures historically initiate.

CATERPILLAR 992G FEA stress visualization with Von Mises legend
Figure 3 — Von Mises stress & deformationsolver: SolidWorks Simulation · load case: 1.4× rated
Max Von Mises stress
7.43×10⁷ N/m²
Peak stress under 1.4× rated load — at the bolt-circle radius.
Yield safety factor
2.2×
Vs. HSLA 6082-T6 — 380 MPa yield.
Mesh elements
1.52M
Tetrahedral mesh — 0.7 mm element size at critical radii.
Deformation (max)
2.04mm
Elastic deformation under peak load — fully recovered.

NEED THE FULL 186-PAGE CATERPILLAR 992G SPEC PACK?

The complete K-RB-CAT992G catalog ships as a signed PDF with all five component drawings, the FEA report, material certificates, and a heat-lot traceable QC sheet for every unit you order.

Kelios — OTR Wheels Engineered to Endure