OTR COMPONENT · 06 / 06

DISCS

FOR THE HUB

The wheel disc that bolts to the hub and carries the full payload through the wheel-end — the single most-loaded component in the entire assembly. Aerospace-grade forging, ultrasonic + CT inspected, and individually traceable to its heat lot via laser-etched QR.

06 / 06

CATALOG

FITS & SIZES

3 OEM-matched variants in production. Custom sizes engineered on request — typical lead time 14 weeks.

K-D-CAT777

Caterpillar 777 — spoke pattern

DIAMETER: 49 in
RATED LOAD: 100 t
MATERIAL: 7075-T6

SPEC SHEET

K-D-K860E

Komatsu 860E — spoke pattern

DIAMETER: 57 in
RATED LOAD: 254 t
MATERIAL: 7075-T6

SPEC SHEET

K-D-CAT797

Caterpillar 797 — spoke pattern

DIAMETER: 63 in
RATED LOAD: 363 t
MATERIAL: 7075-T6

SPEC SHEET

3 · PRODUCT ADVANTAGE

FIVE THINGS WE WON'T COMPROMISE ON

The five process disciplines that separate a Kelios rim from a commodity wheel.

8.1

AEROSPACE-GRADE FORGING

Discs are forged on the same 24 000 t press lines that feed commercial aviation. Same supplier base, same heat-lot certifications, same metallurgy — engineered for an environment where failure is not survivable.

8.2

CNC-MACHINED BOLT FACE

The disc face is machined flat within ±0.02 mm across the full bolt circle. Bolt-tension distribution at the wheel-end is uniform — the single most overlooked cause of premature stud fatigue in haul fleets.

8.3

X-RAY CT FLAW DETECTION

Every disc is X-ray CT-scanned for internal porosity greater than 50 µm. Forging defects that pass standard UT can fail CT scanning — we use both, and reject any unit that fails either.

8.4

LASER-ETCHED TRACEABILITY

Heat lot, forge run, and serial number are laser-etched into a non-load-bearing edge and linked to a QR code. Pull the QR from your phone and the full birth-cert PDF loads — for the life of the wheel.

8.5

OEM SPOKE PATTERNS

Spoke patterns engineered to match Komatsu, Caterpillar, Belaz, Hitachi, and Liebherr OEM specifications. No re-drilling, no spacer plates, no aftermarket compromises at the hub.

PROCESS

HOW IT'S MADE

AEROSPACE FORGE

24 000 t press; same alloy supply chain as commercial aviation.

BOLT FACE

Disc face machined flat within ±0.02 mm across the bolt circle.

X-RAY CT

Every disc CT-scanned for internal porosity > 50 µm.

TRACEABILITY

Heat lot + serial laser-etched; QR-linked digital cert sheet.

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