HL003 Series Professional Sliding Window Roller

Balanced Distribution
Extreme Durability

Part of our elite Window Hardware range, the HL003 is constructed with a reinforced SUS304 stainless steel housing to resist the torque generated by heavy sashes. At Luoqi Door Systems, we equip the HL003 with dual **ABEC-9 Precision Bearings**, providing a "zero-effort" glide that feels effortless even under maximum load.

With an integrated high-precision adjustment screw accessible from the sash end, the HL003 ensures that even the heaviest installations can be perfectly leveled to maintain airtight seals and structural symmetry. It is the premier **Premium Hardware Solution** for high-end villas and commercial hospitality projects.

Technical Capacity Matrix

◈ Rocker-Arm Balancing

The internal rocker mechanism automatically adjusts to minor track imperfections, ensuring both wheels maintain constant contact and provide equal load distribution at all times.

◈ High-Efficiency Lubrication

Each tandem unit is factory-sealed with aviation-grade lithium grease, designed to maintain its viscosity from -40°C to +80°C, perfect for extreme climate variations.

◈ Track-Preservation Geometry

The wheel profiles are radius-calibrated to match premium stainless steel tracks, preventing the "v-scoring" effect often seen with lower-quality rollers on heavy sashes.