NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
RA crossed roller bearings are specifically designed for precision rotary systems,featuring a 90° orthogonal crossed roller layout that enables simultaneous bearing of radial loads,axial loads,and overturning moment loads.They are suitable for high-precision,high-rigidity,and space-constrained applications.Their integrated inner ring structure enhances system rigidity and simplifies installation,while the optional preload configuration eliminates internal clearances,making them ideal for equipment requiring stable and precise rotation,such as industrial robots,precision machine tools,optical instruments,and semiconductor manufacturing equipment.
The 4th and 5th axis indexers are core rotary units of CNC machining centers,adding rotational motion to the conventional X,Y,Z linear axes.The 4th axis (typically A/B axis) enables single-plane rotation,while the 5th axis (A/C or B/C axis) allows dual-axis rotation,supporting one-setup machining of complex,multi-angle components.These indexers require extreme rigidity,ultra-high rotational precision,and compact integration.They must resist strong cutting forces,maintain precise angular positioning,and fit into limited machine tool spaces.Stable rotation and minimal deflection are critical to ensuring machining accuracy for aerospace,automotive,and mold parts.
RA crossed roller bearings are the core rotary support for 4th/5th axis indexers,directly determining machining accuracy and equipment reliability.
Ultra-High Rigidity Against Cutting Forces:The crossed-roller layout maximizes contact area,resisting deformation under strong cutting loads and ensuring no deflection during heavy machining.Critical for maintaining dimensional accuracy of precision parts.
Composite Load Capacity for Complex Forces:Simultaneously bears radial,axial,and moment loads from cutting and workpiece weight,replacing multiple bearing combinations and simplifying indexer structure.
Precision Rotation for Accurate Indexing:P4/P2 grade precision and ≤0.002mm runout tolerance ensure precise angular positioning,eliminating indexing errors for complex 5-axis machining.
Compact Design for Space-Saving Integration:Thin-section (8mm–13mm) and lightweight structure perfectly fits the slim,integrated layout of 4th/5th axis indexers,saving valuable machine tool space.
Low Friction & Stable Operation:Optimized roller geometry minimizes friction and vibration,ensuring smooth rotation even at high indexing speeds,avoiding machining surface defects.
Long Life for Continuous Production:Surface-hardened materials enhance fatigue resistance,supporting 24/7 operation in industrial CNC environments.
Newbeetrans is a professional manufacturer of RA crossed roller bearings,providing tailored solutions for CNC 4th/5th axis indexers.
Machine Tool-Focused Customization:Offers designs for high rigidity,low backlash,and heavy-load resistance.Supports special lubrication and non-standard dimensions; samples ready in 10–15 days.
Precision Manufacturing:Adopts super-fine grinding for P4/P2 grade precision,with strict quality control.Monthly production capacity exceeds 2 million sets.
Fast Delivery & Global Support Standard:RA series shipped within 72 hours; global logistics available.
Quality Assurance:ISO 9001 & GB/T 307.1 certified; SGS inspection reports provided.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276