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SPEC SHEET · K-LR-S39 · REV. 02 · 2026

39" STYLE LOCK RING
SPEC SHEET

Part code
K-LR-S39
Diameter
39 in / 991 mm
Rated load
90 t
Compliance
ISO 4250-3 · AS 4457 · GB/T 2883
01 · DIMENSIONS

CRITICAL DIMENSIONS

Cross-section drawing of the K-LR-S39 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.

39" STYLE LOCK RING cross-section dimensions
Figure 1 — Cross-section & dimensionsdrawing K-LR-S39 · rev. 02 · 2026
REFDIMENSIONVALUETOLERANCE
ACross-section width25 mm±0.20 mm
BHeel thickness9 mm±0.10 mm
CHook profile taper angle45°±0.5°
02 · ASSEMBLY

WHEEL-END ANATOMY

The complete 39" STYLE LOCK RING 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.

39" STYLE LOCK RING wheel-end anatomy with labeled components
Figure 2 — Wheel-end anatomycross-section · five-piece assembly
1
Side ring
Pairs with K-SR-51 / smaller single-style flanges
2
Bead seat band
Compact bead interface
3
Lock ring
This unit — cold-formed AISI 4140, induction-hardened HRC 45–50
4
Rim base
Pairs with K-RB-2410 / K-RB-CAT140 — articulated dumpers · loaders
5
Wheel hub
OEM-supplied — small articulated dumpers · wheel loaders
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-LR-S39 was meshed at refined element size with concentration at the lock-ring seat and bead radii — the two locations where field failures historically initiate.

39" STYLE LOCK RING FEA stress visualization with Von Mises legend
Figure 3 — Von Mises stress & deformationsolver: SolidWorks Simulation · load case: 1.4× rated
Max Von Mises stress
6.85×10⁷ N/m²
Peak stress under 1.4× rated load — at the locking shoulder.
Yield safety factor
2.6×
Vs. AISI 4140 — 655 MPa yield, hardened HRC 45–50.
Mesh elements
0.84M
Tetrahedral mesh — 0.4 mm element size at lock-shoulder radius.
Deformation (max)
1.62mm
Elastic deformation under peak load — fully recovered.

NEED THE FULL 124-PAGE 39" STYLE LOCK RING SPEC PACK?

The complete K-LR-S39 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