Yamazaki YBH-45 Spindle Repair
Our customer sent us this spindle for repair after their part quality diminished. The bearings were very tight and had noticeable damage when spun by hand. We also noted that an aftermarket speed sensor had been installed on the spindle but not balanced with the spindle assembly. This caused high vibration and ultimately bearing failure.
We manufactured a custom counterweight to offset the speed sensor. Thoroughly cleaned the spindle and assembled it with new bearings. We test ran this spindle and balanced the assembly to a spindle grade scale.
The spindle is running smoothly without vibration and the part quality has improved dramatically. This spindle should last for many years to come.