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.
Rotary tables of coordinate measuring machines (CMMs) are high-precision 4th-axis motion platforms,serving as the"precision rotary base"for accurate 3D measurement of complex components.Mounted on CMMs,they precisely rotate workpieces at arbitrary angles,enabling multi-angle,all-dimensional inspection of intricate parts like aerospace blades,gears,and precision molds.These tables demand ultra-high rotational accuracy (arc-second level),exceptional structural rigidity,zero vibration,and zero backlash.They must maintain sub-micron-level positioning stability under varying workpiece weights,as even tiny deflection or micro-vibration can directly cause measurement errors and invalidate inspection data.
RA crossed roller bearings act as the core rotary support for CMM rotary tables,directly determining measurement accuracy,stability,and reliability.
Ultra-High Rigidity for Anti-Deformation:The crossed-roller layout maximizes contact area,effectively resisting deformation under workpiece weight and dynamic rotary loads.This rigidity ensures the rotary table remains stable during high-precision indexing,preventing deflection that distorts 3D measurement data.
Composite Load Capacity for Multi-Directional:Forces Simultaneously bears radial loads (workpiece weight),axial loads,and overturning moment loads (rotary inertia),replacing multiple bearing combinations and simplifying the table's compact structure.This integrated design reduces assembly errors and enhances stability during continuous multi-angle rotation.
Precision Rotation for Sub-Micron Measurement:P4/P2 grade precision and ≤0.002mm runout tolerance deliver exceptional rotational accuracy.This enables the CMM rotary table to achieve arc-second-level angular precision and sub-micron positioning repeatability,meeting strict requirements for high-precision dimensional inspection.
Compact & Lightweight for Space Optimization:The ultra-thin section (8mm-13mm) and lightweight design perfectly fit the limited installation space of CMMs.This compactness reduces the overall weight of the rotary system,improving motion agility and optimizing the CMM's internal layout.
Low Vibration & Zero Backlash for Stable Measurement:Optimized roller geometry minimizes friction and micro-vibration,while optional preload eliminates internal clearances.This ensures jitter-free,backlash-free rotation,critical for avoiding measurement jitter and ensuring data consistency.
Long Life for 24/7 Inspection:Surface-hardened materials (HRC 60-62) enhance fatigue resistance,supporting uninterrupted long-term operation in high-throughput inspection labs.This reduces maintenance downtime and ensures continuous measurement availability.
Newbeetrans is a professional manufacturer of RA crossed roller bearings,providing tailored solutions for CMM rotary tables and precision measuring instruments.
Metrology-Focused Customization:Offers designs for zero backlash,ultra-low vibration,and high precision.Supports stainless steel construction,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 for critical dimensions.
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.
WhatsApp
sales@newbeetrans.com
+8615090185276