Uploaded March 2025 | Updated September 2026, 2 hours ago
I replaced the stock MT3 spindle with a R8 spindle and also replaced the bottom taper roller bearings with SKF roller bearings. Top deep groove ball bearing and thrust bearing combo was replaced with anothe SKF tapered roller bearing as well. After some preload adjustment and warm up the run-out at the taper and an end mill held in an ER16 precision collet was well under 0.005mm. Small wins 😂
I replaced the stock MT3 spindle with a R8 spindle and also replaced the bottom taper roller bearings with SKF roller bearings. Top deep groove ball bearing and thrust bearing combo was replaced with anothe SKF tapered roller bearing as well. After some preload adjustment and warm up the run-out at the taper and an end mill held in an ER16 precision collet was well under 0.005mm. Small wins 😂
