# ChS-2 and ER1 traction gearboxes — Ukrzaliznytsia Locomotive Dept.

**IE S003**  
Ukrzaliznytsia Locomotive Dept. · Ukraine · 2002–2004

Tooth thickness grew, pitting and scoring closed up, the gain held on repeat measurements. ChS-2 and ER1 traction gearboxes, Ukrzaliznytsia Locomotive Dept.

## Measured

- gear wheel tooth thickness, 13.05-16.15 → 13.85-16.60 mm — **0.3-0.8 mm**

## Conclusion

Tooth thickness grew, pitting and scoring closed up, the gain held on repeat measurements

Page: https://industry.xado.com/case/glavnoe_upravlenie_lokomotivnogo_khoziai_series_3
PDF report: https://industry.xado.com/pdf/TIER%20S/UZ/gearboxes-ChS-2-ER1/IE-S003_XADO_UZ_gearboxes-ChS-2-ER1_EN.pdf