Sill Bearing
Sill Bearing
Precision Engineered Deep Groove Ball Bearings for Global Industrial Excellence. High Performance, Low Friction, and Unmatched Durability.
In the intricate world of mechanical engineering, the Diameter Bearing 6004 stands as a cornerstone component. This deep groove ball bearing, characterized by its 20mm bore, 42mm outer diameter, and 12mm width, is one of the most versatile and widely utilized bearings globally. As a leading China 6004 bearing supplier, we recognize that this specific dimension is the heartbeat of countless industrial applications, from high-speed electric motors to robust agricultural machinery.
The global market for 6004 bearings is currently undergoing a massive transformation. With the rise of Automation 4.0 and the electric vehicle (EV) revolution, the demand for high-precision, low-noise, and energy-efficient bearings has skyrocketed. Industries in Europe, North America, and Southeast Asia are no longer just looking for "parts"—they are seeking high-tech rotational solutions that can withstand extreme temperatures and high RPMs while maintaining structural integrity over millions of cycles.
Our 6004 bearings are manufactured to P6/P5 tolerance classes, ensuring minimal vibration and maximum rotational accuracy for sensitive equipment.
Optimized internal geometry reduces friction torque, directly contributing to lower energy consumption in high-demand industrial motors.
Equipped with ZZ, 2RS, or Open configurations, providing superior protection against dust, water, and contaminants in harsh environments.
The 2024-2030 forecast for the bearing industry highlights a significant shift toward material science innovation. We are seeing a move from traditional high-carbon chromium steel (GCr15) to ceramic hybrids and specialized coatings. As a dedicated 6004 bearing factory, we have integrated these trends into our production lines, offering stainless steel options and ceramic ball variations for specialized medical and chemical processing applications.
Global procurement teams are now prioritizing Supply Chain Resilience. By sourcing directly from a China-based factory located in a strategic logistics hub like Hangzhou Bay, international buyers reduce middleman costs and gain direct access to R&D departments. This allows for customized grease filling, specific clearance (C3, C4) adjustments, and bespoke packaging—all crucial for localized application success.
Precision Reliability
Exporting Countries
Tech Support
Energy Savings
In the automotive world, 6004 bearings are vital for alternators, tensioners, and gearbox shafts. Our bearings ensure quiet operation, meeting the stringent NVH (Noise, Vibration, and Harshness) requirements of modern vehicle manufacturers.
From conveyor belts in packaging plants to high-speed spindles in CNC machines, the 6004 bearing provides the necessary radial support. Its ability to handle high rotational speeds makes it ideal for textile machinery and printing presses.
Used extensively in electric drills, grinders, and even high-end bicycle hubs. The compact 42mm outer diameter allows for lightweight designs without compromising on load-bearing capacity.
In regions like Southeast Asia, our 6004 bearings are heavily used in agricultural water pumps and processing equipment. In contrast, our European clients often integrate these bearings into advanced HVAC systems where longevity and low maintenance are the primary procurement drivers. We provide the specific 6004-2RS (rubber sealed) and 6004-ZZ (metal shielded) variants to meet these diverse climatic and operational needs.
SILL BEARING FACTORY, is located in the beautiful and affluent place named Hangzhou Bay New Zone, which is not only close to the two biggest ports of China—Shanghai port and Ningbo Port, but also adjacent to Hangzhou—Ningbo Expressway, 329 State Line and Hangzhou- Ningbo Railway Line. Besides, it owns the advantage of transportation, as it only takes about 90 minutes to go to Hangzhou Xiaoshan Airport or Ningbo Lishe Airport.
Being situated at the nexus of China's most advanced manufacturing corridor allows us to minimize lead times. Our proximity to the Ningbo and Shanghai ports means we can offer competitive FOB and CIF pricing, ensuring your 6004 bearing shipment arrives on time, every time. This logistical edge is coupled with our "Smart Factory" initiative, where AI-driven quality control monitors every stage of the bearing grinding and assembly process.
As a leading China 6004 bearing factory, we don't just manufacture; we innovate. Our facility utilizes automated production lines that guarantee consistency across millions of units. For the global buyer, this means a lower defect rate and a higher return on investment. Whether you are an OEM looking for thousands of units per month or a specialized distributor, our flexible production capacity is designed to scale with your business growth.
Understanding the technical nuances of the 6004 bearing is essential for high-level procurement. The "6" indicates it belongs to the Deep Groove Ball Bearing family, the most popular bearing type due to its ability to handle both radial and axial loads. The "00" series denotes its light-duty series profile, and the "04" translates to the 20mm bore diameter (4 x 5mm). This specific balance of size and strength makes it the "Goldilocks" of the bearing world—not too big for handheld devices, yet strong enough for heavy-duty electric motors.
Quality control at our China factory involves multi-stage testing. First, the raw steel undergoes spectrographic analysis to ensure carbon and chrome content meet international standards. Next, the inner and outer rings are precision-ground to within microns. Finally, the balls are matched for size consistency to ensure uniform load distribution. This meticulous process is why our 6004 bearings are trusted by engineers for high-stakes applications where failure is not an option.
Furthermore, we offer specialized lubrication options. Depending on your application—be it high-speed, high-temperature, or food-grade environments—we can fill our 6004 bearings with premium Mobil, Shell, or food-safe greases. This level of customization, combined with our strategic location in the Hangzhou Bay New Zone, makes us the preferred partner for global enterprises seeking a reliable Diameter Bearing 6004 supplier.
In conclusion, the 6004 bearing is more than just a steel ring with balls; it is a critical component that drives the efficiency of the modern world. By choosing a specialized factory like SILL BEARING, you are investing in precision, durability, and a partnership that understands the global industrial landscape.
