close
Choose Your Site
Global
Social Media
The 608 Deep Groove Ball Bearing is a versatile miniature bearing designed for high-speed and low-noise applications. With standard dimensions of 8x22x7 mm, it offers reliable load capacity and smooth rotation, making it ideal for electric motors, skateboards, and power tools. Available in open, metal shield (ZZ), and rubber seal (2RS) variants, this bearing ensures consistent performance and long service life.
| Quantity: | |
|---|---|
The 608 Deep Groove Ball Bearing represents the pinnacle of rotational engineering, meticulously crafted to eliminate operational friction and enhance the mechanical efficiency of your assemblies. When integrated into high-speed motors or automated conveyor systems, the first thing you notice is the absolute absence of grinding or acoustic resonance—a testament to its ultra-polished raceways and precision-matched spherical rolling elements. By utilizing high-purity Chrome Steel (GCr15) or resilient Stainless Steel, this bearing resists the microscopic pitting and surface fatigue that typically plague inferior components under continuous stress. It actively solves the pervasive issue of premature mechanical failure, ensuring that your automated machinery, power tools, and precision instruments operate with a fluid, uninterrupted glide. The tactile smoothness of the rotation translates directly into reduced energy consumption and lower thermal expansion during prolonged operational cycles. Whether subjected to the harsh, particulate-heavy environments of industrial fabrication or the strict acoustic requirements of medical devices, this bearing provides an unyielding foundation of stability, dramatically extending the maintenance intervals of your end products and safeguarding your operational reputation.
Parameter | Value | Description |
Bearing Model | 608 | Deep Groove Ball Bearing |
Inner Diameter (d) | 8 mm | Shaft diameter |
Outer Diameter (D) | 22 mm | Housing bore diameter |
Width (B) | 7 mm | Bearing width |
Chamfer (r min) | 0.3 mm | Minimum chamfer size |
Item | Specification |
Bearing Type | Deep Groove Ball Bearing |
Precision Grade | ABEC-1 / ABEC-3 / ABEC-5 |
Noise Level | Z1 / Z2 (low noise) |
Sealing Type | Open / ZZ / 2RS |
Material | Chrome Steel (GCr15) / Stainless Steel |
Cage Material | Steel / Nylon |
Lubrication | Grease or Oil |
Operating Temperature | -20°C to +120°C |
Load Type | Value |
Dynamic Load Rating (Cr) | Approx. 3.30 kN |
Static Load Rating (Cor) | Approx. 1.37 kN |
Note:Load ratings may vary slightly depending on bearing clearance, material selection, and lubrication conditions.
Bearing Version | Max Speed |
Open Type | ~30,000 RPM |
Metal Shield (ZZ) | ~24,000 RPM |
Rubber Seal (2RS) | ~16,000 RPM |
608 – Open type
608ZZ – Double metal shields
608-2RS / 608-2RS1 – Double rubber seals
Engineered to exceed standard operational demands, our 608 Deep Groove Ball Bearing integrates advanced metallurgical properties with refined internal geometries. This component is specifically designed to tackle the most demanding rotational challenges, ensuring your machinery maintains peak output without the risk of sudden mechanical seizing or excessive thermal buildup.
Acoustic Excellence: Achieves Z1 and Z2 noise levels, providing a whisper-quiet operation that is crucial for consumer electronics and indoor automation systems.
Thermal Resilience: Maintains structural integrity and dimensional stability across a vast temperature spectrum from -20°C to +120°C.
Friction Reduction: Advanced cage designs (available in both high-tensile steel and lightweight nylon) minimize internal drag, allowing for superior energy transfer.
Versatile Lubrication: Pre-filled with premium grease or oil tailored for specific operational velocities, eliminating the need for initial maintenance upon installation.
Vibration Dampening: The meticulously calibrated internal clearance (C0, C2, or C3) absorbs shock loads and reduces radial runout during high-speed applications.
Achieving flawless integration into your existing product lines requires absolute dimensional accuracy. Adhering strictly to the international standard of 8x22x7mm, this bearing guarantees a drop-in replacement for a multitude of industrial and commercial applications. The meticulously controlled 0.3mm minimum chamfer ensures smooth mounting onto shafts and into housings, preventing scoring or misalignment during rapid assembly processes. This precise engineering eliminates the frustration of forced fits and reduces the mechanical stress on surrounding components.
Universal Sizing: The 8mm inner bore and 22mm outer diameter fit seamlessly into standard micro-motor housings, power tool armatures, and automated conveyor rollers.
Automated Assembly Ready: The precise 0.3mm chamfer allows for rapid, jam-free insertion by robotic assembly arms, streamlining your production line.
Tolerance Control: Strict adherence to ABEC standards ensures that every batch maintains identical dimensions, eliminating the need for continuous calibration during manufacturing.
The foundation of any high-performance rotational component lies in its metallurgical composition. By offering a choice between premium Chrome Steel (GCr15) and high-grade Stainless Steel, we provide solutions tailored to your specific environmental challenges. Coupled with precision grinding and super-finishing techniques, the raceways exhibit exceptional resistance to wear, spalling, and surface fatigue. This drastically reduces the frequency of component replacement and ensures your machinery continues to operate with a fluid, uninterrupted glide even after thousands of hours of continuous use.
GCr15 Chrome Steel: Delivers unparalleled hardness and load-bearing capacity for heavy-duty, high-torque applications where structural rigidity is paramount.
Corrosion-Resistant Stainless Steel: The ideal choice for environments exposed to moisture, mild acids, or rigorous wash-down protocols, preventing rust-induced seizing.
Super-Finished Raceways: Micro-polished surfaces reduce metal-on-metal friction, preventing the micro-welding that leads to premature bearing failure.
Fatigue Resistance: Engineered to withstand millions of rotational cycles without structural degradation, ensuring long-term reliability for your end-users.
Contamination is the primary enemy of bearing longevity. To combat the ingress of abrasive particulates and the leakage of critical lubricants, we offer comprehensive sealing configurations. Whether your equipment operates in a sterile laboratory or a dust-filled fabrication facility, our tailored protection schemes ensure the internal rolling elements remain pristine and fully lubricated throughout their lifecycle. By actively repelling foreign matter, these seals preserve the tactile smoothness of the bearing, preventing the gritty, grinding sensations that precede mechanical failure.
Open Configuration: Maximizes speed potential (up to 30,000 RPM) for clean, enclosed environments where external lubrication systems are utilized.
ZZ Metal Shields: Dual steel shields provide a robust barrier against larger debris while retaining grease, perfect for high-speed power tools operating up to 24,000 RPM.
2RS Rubber Seals: Dual contact seals offer the ultimate defense against fine dust and moisture, locking in lubrication for maintenance-free operation in harsh conditions.
Extended Maintenance Intervals: By preventing contamination, these sealing options drastically lower the total cost of ownership for your machinery.
In applications where even microscopic deviations can lead to catastrophic system failure, precision is non-negotiable. Available in ABEC-1, ABEC-3, and ABEC-5 grades, our bearings deliver uncompromising rotational accuracy. The resulting performance is characterized by an exceptionally smooth glide, virtually eliminating the vibrations that can compromise the accuracy of sensitive instruments or cause excessive wear on adjacent mechanical components. This level of precision engineering guarantees a whisper-quiet acoustic profile, enhancing the overall sensory experience of your finished products.
High-Speed Capability: Flawlessly handles rotational speeds up to 30,000 RPM without overheating or destabilizing, ensuring peak performance in demanding motors.
Acoustic Engineering: Z1 and Z2 noise level certifications guarantee a hushed operational footprint, elevating the perceived quality of your consumer and commercial goods.
Reduced Radial Runout: High ABEC ratings ensure the shaft rotates perfectly true, critical for precision medical devices, 3D printing mechanisms, and optical equipment.
Industrial applications frequently subject components to unpredictable stresses and extreme environmental fluctuations. Engineered to shoulder substantial burdens, this bearing boasts a dynamic load rating of approximately 3.30 kN and a static load rating of 1.37 kN. Furthermore, its resilient construction allows it to maintain peak functionality across a wide thermal spectrum. Whether deployed in freezing storage facilities or high-heat manufacturing plants, the bearing retains its structural integrity, ensuring consistent, low-friction rotation without seizing or deforming.
Robust Dynamic Capacity: The 3.30 kN rating ensures stable operation under continuous, rotating loads, preventing raceway deformation during heavy use.
Static Shock Resistance: The 1.37 kN static capacity absorbs sudden impacts and heavy resting loads without compromising the spherical integrity of the steel balls.
Wide Temperature Range: Specifically formulated lubricants and heat-treated steel allow for continuous operation from -20°C up to +120°C.
Consistent Performance: Maintains internal clearances and structural rigidity even when subjected to fluctuating environmental extremes.
We understand that off-the-shelf solutions rarely meet the nuanced demands of specialized engineering projects. Our comprehensive customization and OEM services are designed to adapt this core component to your exact specifications. From tweaking internal clearances to applying proprietary lubricants, we act as an extension of your engineering team. This collaborative approach ensures you receive a highly customized component ready for immediate integration, perfectly aligned with your operational goals and brand identity.
Clearance Customization: Select from C0, C2, or C3 internal clearances to accommodate specific thermal expansion or vibration requirements in your machinery.
Specialized Lubrication: Options include high-speed oils, ultra-low-noise greases, and extreme-temperature synthetics tailored to your unique application.
Brand Integration: We offer precise laser marking of your logos or part numbers directly onto the bearing shields or outer rings.
Tailored Packaging: From bulk industrial trays for automated assembly lines to individually sealed boxes for aftermarket distribution networks.
Technical Collaboration: Full technical drawing confirmation and prototype testing prior to full-scale mass production, ensuring zero defects.
Securing a reliable, cost-effective component supply is critical for maintaining your competitive edge in the global market. By sourcing directly from our advanced manufacturing facility, you bypass unnecessary intermediaries, securing premium components at highly competitive price points. Our streamlined production processes and rigorous adherence to ISO quality standards guarantee that every shipment, regardless of volume, delivers absolute consistency. This stable supply chain empowers you to plan large-scale production runs with absolute confidence.
Factory-Direct Economics: Eliminates third-party markups, significantly reducing your raw material procurement costs and improving your profit margins.
Scalable Production: Advanced automated lines ensure we can fulfill massive volume orders without extending lead times or compromising quality.
Global Logistics Support: Experienced in international shipping protocols, ensuring your inventory arrives safely and on schedule, every single time.
Partnering with the right manufacturer transforms your procurement process from a potential liability into a strategic advantage. We do not merely produce components; we engineer long-term reliability. Our commitment to metallurgical excellence, dimensional precision, and rigorous testing protocols ensures that our products elevate the performance of your machinery. We stand behind our manufacturing capabilities with dedicated technical support, ensuring your engineering challenges are met with viable, long-lasting solutions that protect your brand's reputation.
Proven Manufacturing Pedigree: Decades of specialized experience in producing precision rotational components for global markets.
Stringent Quality Assurance: Every batch undergoes rigorous acoustic, dimensional, and load-bearing testing before dispatch to guarantee flawless operation.
Dedicated Technical Support: Our engineering team provides comprehensive pre-sales consultation and highly responsive after-sales troubleshooting.
Sustainable Practices: Optimized material usage and energy-efficient production methods align with modern environmental standards.
Navigating the technical specifications of precision components can be complex. Below, we address the most common inquiries from engineering and procurement professionals regarding our 608 Deep Groove Ball Bearings, helping you make informed decisions for your manufacturing needs.
Q1: How do I determine whether to choose the ZZ or 2RS sealing type for my application?
Answer: The ZZ (metal shield) is optimal for high-speed applications (up to 24,000 RPM) in relatively clean environments, as it offers low friction. The 2RS (rubber seal) provides superior protection against fine dust and moisture, making it ideal for harsh environments, though it limits maximum speed to approximately 16,000 RPM due to seal contact friction.
Q2: Can the internal clearance (C0, C2, C3) be customized for high-temperature environments?
Answer: Yes. For applications involving significant thermal expansion, we highly recommend specifying a C3 clearance. This provides extra internal room for the rolling elements, preventing the bearing from seizing as the metal expands under high temperatures.
Q3: What are the primary advantages of selecting Stainless Steel over Chrome Steel (GCr15)?
Answer: While Chrome Steel (GCr15) offers exceptional hardness and load capacity, Stainless Steel is crucial for applications exposed to corrosive elements, moisture, or strict hygiene standards (such as food processing or medical devices), offering superior rust resistance to ensure longevity.
Q4: How does the ABEC rating impact the performance of the bearing in automated machinery?
Answer: Higher ABEC ratings (such as ABEC-5) indicate tighter manufacturing tolerances. In automated machinery, this translates to reduced radial runout, lower vibration, and quieter operation, which is critical for precision positioning and extending the lifespan of the entire mechanical assembly.
Q5: Is it possible to request specialized lubrication for extreme operating conditions?
Answer: Absolutely. We offer a variety of lubrication options, including high-speed oils for low-torque requirements, and specialized greases designed to maintain viscosity and prevent degradation in extreme temperatures ranging from -20°C to +120°C.
