MT4 CNC High Speed Live Center Extended A Type Point With Heat Treated Shaft HRc 60±2, 0.003 mm TIR Accuracy, 3800 RPM Max, Triple Bearing System And Lip Seal For Precision High Speed Machining

MT4 High-Speed Live Center with Extended A-Type Point
✔️ MT4 size with extended A-type point; HRc60±2; 0.003mm TIR; single unit

The BN 4BNL30A MT4 live center is a high-precision turning tool designed for CNC and conventional lathes. It delivers stable support at high speeds, with a hardened shaft and tight runout to keep parts concentric and on spec. The design uses a sealed ball bearing arrangement and a robust lip seal to protect the bearing space from dust and coolant.

✅ Max rpm up to 3,800 RPM for high-speed CNC work
✅ Heat-treated shaft HRc 60±2 with tight 0.003 mm (0.0001") TIR
✅ High-precision triple bearing structure for stable, long-lasting support
✅ Lip seal and deflected shaft design prevent dust and coolant ingress
✅ Internationally recognized quality; widely used in Korean machinery lines

💡 What is a live center bearing used for in CNC turning?

These handy devices support rotating workpieces, helping maintain concentricity and reduce vibration during high-speed machining.

• Handy for guiding and supporting shafts in CNC lathes and manual machines
• Sealed ball bearing setups protect the bearing space from dust and coolant
• Important for achieving precise runout and repeatable results at high speeds
• Works with ceramic or standard ball bearings depending on the spec