The 608 Low Noise EMQ Bearing represents a pinnacle of miniature deep groove ball bearing engineering, specifically designed for applications where silence, precision, and reliability are non-negotiable. Manufactured under MTWB rigorous quality standards, this bearing delivers exceptional rotational accuracy, extended service life, and industry-leading noise suppression – making it the preferred choice for electric motors, medical devices, robotics, and precision instruments.
Leveraging MTWB breakthrough manufacturing technologies in miniature and small deep groove ball bearings, the 606 Low Noise EMQ Bearing incorporates advanced precision grinding processes, strict quality control protocols, and premium material selection to achieve performance metrics that consistently exceed industry benchmarks.
608 Bearing Dimensions and Technical Specifications
| Item | Parameter | Description |
|---|---|---|
| Standard Model | 608 | Deep groove ball bearing, metric dimensions |
| Bore Diameter (d) | 8 mm | Inner ring aperture |
| Outside Diameter (D) | 22 mm | Outer ring diameter |
| Width (B) | 7 mm | Overall bearing width |
| Basic Dynamic Load Rating (Cr) | ≈ 3.3 – 3.65 kN | Represents the bearing's load-carrying capacity |
| Basic Static Load Rating (C0r) | ≈ 1.37 kN | Represents the bearing's load-carrying capacity |
| Limiting Speed (Grease Lubrication) | ≈ 34,000 r/min | Theoretical maximum speed with grease lubrication |
| Limiting Speed (Oil Lubrication) | ≈ 40,000 r/min | Theoretical maximum speed with oil lubrication |
| Number of Balls | 7 pcs | |
| Ball Diameter | ≈ 3.969 mm | |
| Weight | ≈ 0.012 kg | Approximately 12 grams |
| Lubrication | Anti-rust oil (open bearing) / Lithium-based grease (sealed bearing) / Customizable per customer requirements |
| Sealing | 100% sealing effect inspection prior to shipment |
| Speed Rating | High-speed capable (customizable) |
| Operating Temperature | Standard: -30°C to +120°C (customizable) |
Customization options available for internal dimensions, raceway curvature, lubricant type, and clearance levels.
The 608 Low Noise EMQ Bearing is engineered with a singular focus: reducing vibration at the source. By implementing targeted quality control during the inner ring raceway grinding process, MTWB achieves significant noise reduction that sets these bearings apart from conventional alternatives. Each bearing undergoes comprehensive noise and vibration testing, with classification levels ranging from Z1 to Z4 for noise and V1 to V4 for vibration – allowing customers to select the exact performance grade their application demands.
High-precision machines and state-of-the-art techniques refine every aspect of the bearing – from raceways to balls – ensuring dimensional accuracy that exceeds industry standards. This precision translates to smoother operation, reduced friction, and extended bearing life.
Only the finest materials make the cut: GCr15 and G95Cr18 bearing steels for exceptional strength and durability, plus corrosion-resistant 300-series stainless steel for demanding environments. These top-grade materials ensure your bearings remain strong, durable, and whisper-quiet over the long haul.
Before any bearing leaves the factory, MTWB conducts a 100% inspection on sealing effectiveness to prevent dust and debris ingress that could compromise long-term performance. This commitment to quality ensures every batch meets the stringent criteria for low noise and high efficiency.
MTWB recognizes that grease has become a major factor influencing bearing noise. The 606 bearing can be configured with anti-rust oil for open configurations, lithium-based grease for sealed versions, or any specified lubricant according to customer requirements
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The 608 Low Noise EMQ Bearing is ideally suited for a wide range of precision applications:
Electric Motors & Generators – Low noise and vibration are critical for motor performance
Medical Devices – Surgical tools, dental handpieces, and diagnostic equipment requiring ultra-quiet operation and high reliability
Precision Instruments – Measuring equipment, optical devices, and laboratory instruments
Industrial Automation – Servo motors, spindle motors, and high-speed automation equipment
Aerospace & Defense – High-reliability components requiring precision and durability
Office Automation – Printers, copiers, and hard disk drives
Radio Control Models – High-speed RC motors and drones
While both the 606 Low Noise EMQ Bearing and standard power hand tool bearings share the same basic dimensions (6×17×6mm), they are fundamentally different products engineered for distinctly different operating conditions:
| Feature | 608 Low Noise EMQ Bearing | Standard Power Hand Tool Bearing |
|---|---|---|
| Primary Focus | Low noise, precision, and longevity | High load capacity and impact resistance |
| Noise Level | Z1–Z4 grade (ultra-low noise) | Typically ungraded or higher noise tolerance |
| Vibration Control | V1–V4 graded precision | Minimal vibration control |
| Precision Class | P4–P6 (high precision) | P0 (standard commercial grade) |
| Raceway Finish | Precision ground with controlled curvature | Standard ground finish |
| Lubrication | Optimized for low noise; customizable grease | Standard grease for high-speed operation |
| Sealing | 100% sealing inspection | Standard sealing |
| Material Grade | Premium GCr15, G95Cr18, or 300-series stainless | Standard bearing steel |
| Target Application | Motors, medical, robotics, precision instruments | Angle grinders, drills, saws, impact tools |
| Cost Profile | Premium | Standard |
The Critical Distinction: Power hand tool bearings are designed to withstand shock loads, impacts, and high radial forces at the expense of noise and precision. The 606 Low Noise EMQ Bearing, by contrast, is engineered for continuous, high-speed operation where acoustic performance and rotational accuracy are paramount. Attempting to use a power hand tool bearing in an EMQ motor application will result in excessive noise, vibration, and premature failure. Conversely, using an EMQ bearing in a power hand tool will lead to rapid wear due to insufficient impact resistance.
MTWB miniature bearing technology – including the ability to produce bearings as small as 0.6mm ID at P4 precision class – stems from medical application demands, yet this precision technology has been extended to industrial applications where silence and accuracy are equally critical.
MTWB has achieved significant technical breakthroughs in miniature and small deep groove ball bearing manufacturing, leveraging advanced production technology, precision grinding, and strict quality control. The 606 Low Noise EMQ Bearing benefits directly from this engineering excellence.
MTWB’s commitment to customer satisfaction is embodied in its “Zero-Error” production approach, ensuring every bearing that leaves the factory meets the highest standards of quality and performance.
From medical devices requiring absolute reliability to robotics demanding precision and longevity, the 606 Low Noise EMQ Bearing has been validated across the most challenging applications.
MTWB provides a full range of ball bearings from 0.6mm ID to 380mm OD, ensuring consistent quality and supply for customers worldwide.
| Order Code | Description |
|---|---|
| 608-EMQ-Z2 | 608 Low Noise EMQ Bearing, Z2 noise level, standard grease |
| 608-EMQ-Z3-V3 | 608 Low Noise EMQ Bearing, Z3 noise level, V3 vibration grade |
| 608-EMQ-SS | 608 Low Noise EMQ Bearing, 300-series stainless steel |
| 608-EMQ-CUST | Custom configuration – contact for specifications |
Minimum Order Quantity (MOQ): Please inquire. Custom specifications, lubricants, and packaging available upon request.
For technical specifications, custom configurations, or to request samples of the 608 Low Noise EMQ Bearing, please contact our sales team. MTWB engineering support is available to assist with application-specific requirements and bearing selection.
What is a 608 EMQ bearing?
A deep groove ball bearing designed for electric motors and applications requiring low noise, low vibration, and smooth rotation.
What are the dimensions of a 608 bearing?
8 mm bore × 22 mm outer diameter × 7 mm width.
What is the difference between 608 ZZ and 608 2RS?
608 ZZ has metal shields; 608 2RS has rubber seals for better protection against dust and contaminants.
What does EMQ mean?
Electric Motor Quality – bearings manufactured with strict control over noise, vibration, and rotational accuracy.
Can the 608 Low Noise EMQ Bearing be customized?
Yes. MTWB offers customization for grease, clearance, precision grade, material, sealing configuration, and more based on your application needs.
August 26,2026
بعدی:626 Low Noise EMQ Bearing
