# EL 44 electric locomotive No. 075.0 — ZhP Traktsia Lokomotivi, BDZ EAD

ZhP Traktsia Lokomotivi, BDZ EAD · Bulgaria · 2003

Teeth of the treated gearbox built up metal, pitting closed over, wear continued on the control gearbox. Bulgaria · 2003. 0.47 mm — small gear tooth thickness.

## Measured

- small gear tooth thickness, average; deviation from nominal 0.50-0.57 → 0.00-0.03 mm — **0.47 mm**
- large gear tooth thickness, average; deviation from nominal 0.70-1.11 → 0.60-0.95 mm — **0.20 mm**
- small gear of the untreated gearbox over the same 63 314 km, deviation 0.25-0.32 → 0.40-0.55 mm — **0.20 mm**

## Conclusion

Teeth of the treated gearbox built up metal, pitting closed over, wear continued on the control gearbox

Page: https://industry.xado.com/case/protokol_bolgariia_el_44_075_0_g
PDF report: https://industry.xado.com/pdf/TIER%20A/BDZh/e-locomotives-EL-44-075-0/XADO_BDZh_e-locomotives-EL-44-075-0_EN.pdf
Original scan: https://industry.xado.com/scans/protokol_bolgariia_el_44_075_0_g.pdf