Sany Original Equipment Track Roller Assembly SWT216B, Sany Material Code: 12123787

Sany Original Trolley Roller Assembly SWT216B (Material Code: 12123787)
- Model: SWT216B
- Sany Material Code: 12123787
- Compatible Models: Sany SY335H / SY360 / SY365H / SY375H (30–40-ton excavators),配套 216MH mining track
- Specifications:
- Wheel Diameter: φ190 mm
- Shaft Diameter: φ55 mm
- Pitch: 216 mm
- Weight: Approximately 35 kg
- Structure: **Dual-wheel groove (dual rib)** trolley roller, original factory cast steel one-piece molding
- Material and Process:
- Wheel Body: High-strength cast steel, tread medium-frequency quenching, HRC 48–55, wear-resistant and impact-resistant
- Wheel Shaft: Tempered alloy steel, high bending strength
- Sealing: Imported floating oil seal, dust and sand-proof, long-lasting oil retention
- Paint Surface: Original factory high-gloss black baked paint, rust and corrosion-resistant
- Function and Advantages:
- Supports upper track, reduces sagging and vibration, prevents track deviation/teeth jumping
- Mining heavy-duty specialized, suitable for harsh gravel working conditions, long service life
- Original factory assembly, damage-free direct installation, compatible with idler wheel and tensioning device