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 grinding machines are the core rotary units of grinding equipment,responsible for holding workpieces and achieving precise rotational or indexing motion during grinding operations.They are essential for machining flat surfaces,curved profiles,and complex multi-angle components,enabling one-setup precision grinding of parts with high parallelism,flatness,and surface finish requirements.These rotary tables demand ultra-high rotational precision,exceptional rigidity,low vibration,and stable load-bearing capacity.They must withstand dynamic grinding forces,maintain consistent angular accuracy,and operate smoothly for long hours-all while fitting into the limited space of grinding machines.Even minor deflection or runout can result in defective workpieces,making the bearing choice critical for machining quality.
RA crossed roller bearings serve as the core rotary support for grinding machine rotary tables,directly determining grinding accuracy,surface quality,and equipment reliability.
Ultra-High Rigidity to Resist Grinding:Forces The crossed-roller layout maximizes contact area,effectively resisting deformation under strong,dynamic grinding loads.This rigidity ensures the rotary table remains stable during heavy grinding,preventing deflection that would ruin workpiece flatness and parallelism.
Composite Load Capacity for Complex Forces:Simultaneously bears radial loads (from workpiece weight),axial loads,and overturning moment loads (from grinding forces),replacing multiple bearing combinations and simplifying the rotary table’s structure.This integrated load-bearing design reduces assembly errors and enhances overall stability.
Precision Rotation for Ultra-Accurate Grinding:P4/P2 grade precision and ≤0.002mm runout tolerance deliver micron-level rotational accuracy.This eliminates indexing and rotation errors,ensuring workpieces achieve the required surface roughness (Ra) and geometric tolerances critical for high-precision grinding.
Compact & Lightweight Design for Space Efficiency:Thin-section (8mm-13mm) and lightweight structure perfectly fits the slim,integrated layout of grinding machine rotary tables.It saves valuable machine space without compromising load capacity,supporting the compact design of modern grinding equipment.
Low Friction & Vibration-Free Operation:Optimized roller geometry minimizes friction and vibration,ensuring smooth,jitter-free rotation.This stability is vital for achieving high-quality surface finishes in fine grinding and preventing tool wear.
Long Life for Continuous Grinding Production:Surface-hardened materials (HRC 60-62) enhance fatigue resistance,supporting 24/7 continuous operation in industrial grinding environments.It reduces downtime and maintenance costs for mass production.
Newbeetrans is a professional manufacturer of RA crossed roller bearings,providing tailored solutions for grinding machine rotary tables.
Grinding Machine-Focused Customization:Offers designs for high rigidity,zero backlash,and heavy-load resistance.Supports special lubrication (for coolant/dust environments) 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.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