LV20/8 Low Noise EMQ Bearing – Product Supply
The LV20/8 Low Noise EMQ Bearing is a precision-engineered deep groove ball bearing (DGBB) designed for applications demanding exceptional rotational accuracy, ultra-low noise operation, and long-term reliability. Manufactured to Electric Motor Quality (EMQ) standards, this bearing represents a technical breakthrough in miniature and small DGBB manufacturing.
As part of the LV series (guide roller bearing) family, the LV20/8 features a V-groove design optimized for cylindrical and 120° V-guide rail systems. The bearing delivers outstanding performance in high-speed, low-noise, and space-constrained applications.
1. Ultra-Low Noise EMQ Performance
The LV20/8 is manufactured to strict EMQ standards, making it ideal for electric motor applications where noise reduction is critical. Through targeted quality control during the inner ring raceway grinding process, vibration is significantly minimized. Noise detection levels range from Z1 to Z4, with the LV20/8 achieving Z2, Z3, and Z4 grades for the most demanding silent operation requirements.
2. Premium Material & Heat Treatment
The bearing rings and rolling elements are fabricated from GCr15 bearing steel, processed through vacuum quenching and tempering. This ensures exceptional hardness, wear resistance, and dimensional stability under varying operational conditions.
3. Advanced Internal Design
The LV20/8 employs a double-row angular contact ball bearing internal structure with a thickened outer ring. This design provides superior load-carrying capacity while maintaining compact dimensions.
4. 100% Quality Inspection
Every bearing undergoes 100% sealing effectiveness inspection before leaving the factory to prevent dust and debris ingress. Comprehensive noise and vibration testing using specialized equipment ensures each batch meets the stringent low-noise and high-efficiency criteria.
5. Precision Manufacturing
Leveraging high-precision grinding machines and top-notch techniques, every aspect of the bearing—from raceways to balls—exceeds industry standards. The raceways are super-finished to mirror-like surfaces, ensuring smooth, quiet rotation.
6. Long-Life Lubrication
The bearing is pre-filled with high-quality, long-life multi-purpose grease (lithium-based for sealed types). Custom grease options are available upon request to meet specific application requirements.
For other miniature low-noise applications, see our
SG20 Bearing, SG25 Bearing ,SR620 Bearing,SR824 Bearing, SR1028 Bearing, SR1232 Bearing
Application
The LV20/8 Low Noise EMQ Bearing is widely used across diverse industries:
●Precision Motors – Miniature and micro motors requiring silent, high-speed operation
●Electric Power Tools – Handheld and stationary power tools
●Pneumatic Tools – Air-powered equipment
●Medical Devices – Precision medical instrumentation
●Robotics – Joint mechanisms and automation systems
●Industrial Automation – Conveyor systems and automated machinery
●ATM Machines – Cash dispensing mechanisms
●Reducers/Gearboxes – Speed reduction units
●Guide Rail Systems – Cylindrical and 120° V-guide rail applications
While both LV20/8 EMQ bearings and standard power hand tool bearings serve rotating equipment, several critical distinctions set them apart:
Feature LV20/8 EMQ Bearing Standard Power Hand Tool Bearing
Noise Level Z2–Z4 ultra-low noise grades Higher noise tolerance
Vibration Control Stringent ZV2–ZV4 vibration classes Less rigorous control
Precision Grade P0–P5 (meets/exceeds national standards) Typically lower precision
Manufacturing Standards EMQ (Electric Motor Quality) General industrial grade
Raceway Finish Mirror-like super-finish Standard finish
Inspection 100% noise & vibration testing Batch sampling only
Lubrication High-grade “clean” grease for low noise Standard grease
Preload Capability Optimized for preload applications Limited preload optimization
Typical Speed Up to high-speed motor applications Moderate speed ranges
Why This Matters: In power hand tool applications, noise and vibration directly impact operator comfort and tool longevity. Bearings used in these applications must be produced to EMQ noise levels. Standard bearings often lack the geometric precision, super-finished raceways, and 100% noise testing that EMQ-grade bearings like the LV20/8 provide.
Furthermore, power hand tool applications require proper preload application—an axial load applied across bearing pairs to remove internal clearances, critical for high-precision and high-speed operation where speeds can reach 60,000 RPM. The LV20/8’s precision manufacturing and consistent internal clearances make it ideally suited for such demanding preload conditions.
Technical Breakthrough in Miniature DGBB Manufacturing
MTWB has achieved significant technical breakthroughs in miniature and small deep groove ball bearing manufacturing, delivering precision bearing solutions for high-speed, low-noise, and space-constrained applications. The LV20/8 embodies this breakthrough, combining:
Advanced Production Technology – Leveraging state-of-the-art manufacturing equipment and precision grinding processes
Strict Quality Control – Rigorous inspection protocols at every production stage
Industry-Leading Rotational Accuracy – Outstanding geometric precision ensuring smooth, reliable operation
Extended Service Life – Durable construction and premium materials for long-term performance
Self-Cleaning V-Groove Design
The LV series features a unique V-groove contact angle with V-guide rails. As the roller rotates at high speed, the V-groove continuously “scrapes” the guide rail surface, providing a self-cleaning effect that maintains rail cleanliness and extends system life.
Versatile Guide Rail Compatibility
Each LV20/8 bearing accommodates a wide range of guide rail diameters, offering exceptional adaptability for various linear motion systems. This versatility reduces inventory requirements and simplifies design integration.
MTWB offers comprehensive customization services, including:
●Special grease formulations for specific temperature or noise requirements
●Custom sealing configurations
●Precision class upgrades upon request
October 14,2026
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