Project Overview

Turkey’s large PV bases experience big temperature swings, outdoor dust, and long-term low-frequency reciprocating rotation. For solar trackers, we customized a mini external-gear ring matching Tadano Z300 specs that adjusts panel angles precisely for maximum generation.

Crafted from 42CrMo steel, the compact single-row four-point contact layout fits tight mounting spaces on photovoltaic brackets. Raceways and gear teeth are precision-machined and hardened to DIN Class 7, delivering smooth, low-backlash rotation during daily tracking. Optimized dustproof sealing and long-life lubrication channels block sand and condensation, preventing internal corrosion.

All dimensions are cross-verified against confidential drawings. Our project record includes multi-angle on-site installation photos from Turkish solar farms, plus packaging and shipment. This mini bearing is lightweight, stable, and long-lasting – capable of thousands of hours of automatic tracking. It gives reliable support for both distributed and ground-mounted PV projects across Turkey.

Technical Highlights

  • Custom triple-lip seal design to prevent dust and moisture ingress
  • Induction-hardened raceway: 55–58 HRC surface, 3.5 mm case depth
  • External gear profile: module m=6, Z=168, 20° pressure angle
  • Load capacity: 680 kN axial, 135 kNm overturning moment
  • Grease refill interval extended from 80h to 200h with polyurea-based high-temp grease
  • Pre-assembly ultrasonic inspection and 360° torque test before shipment

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