The single most safety-critical component in an OTR wheel assembly. Lock-ring failure has caused fatalities in pits around the world. Kelios manufactures every lock ring under a patented hot-coiling process — delivering continuous elasticity, stable strength, and favorable residual compressive stress for a 100% safety factor.
5 OEM-matched variants in production. Custom sizes engineered on request — typical lead time 14 weeks.
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05The five process disciplines that separate a Kelios rim from a commodity wheel.
Lock rings are manufactured under Patent No. ZL200910187953.2. The hot-coiling process delivers continuous elasticity along the full ring circumference, stable strength against shock loading, and favorable residual compressive stress at the locking shoulder — the three properties that decide whether a lock ring holds or fails.
200 pcs / day production throughput against a 100% safety factor. Since the patent was put into use, there has been no recorded safety incident on a Kelios lock ring at any operator worldwide. That track record is the proof point our customers buy.
The locking shoulder is induction-hardened to HRC 45–50 — hard enough to resist seat wear, soft enough to absorb dynamic shock without fracture. Each ring is proof-loaded to 1.5× rated capacity before shipping.
Phosphate primer with 80 µm epoxy topcoat for corrosion resistance against pit chemistry, road salt, and the brake-dust slurry that destroys uncoated rings within 18 months.
Every ring carries a laser-etched serial linking it to its heat lot, hot-coiling run, and proof-test certificate. The cert ships as a PDF with the order and is queryable for the lifetime of the chassis.
Patented process (ZL200910187953.2) — roll-formed from a single strip, no spot welds.
Locking shoulder hardened to HRC 45–50 in-line with coiling.
Phosphate primer + 80 µm epoxy topcoat for pit-chemistry resistance.
Every ring proof-loaded to 1.5× rated capacity. Cert ships with the unit.