# Spindles of 3U131V and BHU-25 machine tools — AVIASTAR-SP JSC

**IE S007**  
AVIASTAR-SP JSC · Russia · 2008

Spindle assembly vibration dropped, idle current decreased, part roundness improved on all machines. Russia · 2008. 7-15 % — current draw per phase.

## Measured

- current draw per phase, 5.2-7.9 → 4.5-6.8 A — **7-15 %**
- vibration velocity at the spindle bearings and bed, 0.4-2.9 → 0.2-1.4 mm/s — **48-72 %**
- roundness deviation of the test part, 0.004-0.01 → 0.002 mm — **2-5×**

## Conclusion

Spindle assembly vibration dropped, idle current decreased, part roundness improved on all machines

Page: https://industry.xado.com/case/aviastar_sp_series
PDF report: https://industry.xado.com/pdf/TIER%20S/Aviastar/spindles-3U131V-BHU-25/IE-S007_XADO_Aviastar_spindles-3U131V-BHU-25_EN.pdf