PMK Belt Screw Bearing Cartridges – Type TDT are compact, precision-assembled bearing units designed for high rigidity and smooth axial rotation in screw-driven spindle systems.

These preloaded cartridge assemblies combine matched angular-contact bearings in a single housing to provide excellent axial and radial stiffness with low friction. Each unit is factory-balanced, greased, and sealed to ensure long service life and stable operation under demanding machine tool environments.

Key Benefits

• Performance: supports high axial loads and stable rotation for belt and screw-driven spindle assemblies.
• Precision: factory-preloaded bearing sets ensure accurate axial positioning and minimal deflection.
• Rigidity: integrated dual-bearing design provides superior axial stiffness and consistent load distribution.
• Ease of Integration: ready-to-fit cartridge design simplifies installation and alignment in spindle housings.
• Reliability: greased and sealed construction enables long, maintenance-free service intervals.

Applications

• Support assemblies for ball screw and belt-driven spindles.
• Precision motion systems in machine tools and automation equipment.
• CNC machining center feed mechanisms and rotary positioning units.
• Retrofit and OEM spindle-end support cartridges.