China Beining Intelligent Technology (Zhejiang) Co., Ltd Company News

  At Beining Technology, we understand that bearing selection is critical to spindle performance in high-precision machine tools such as grinders, lathes, and CNC milling centers. Every application has unique requirements — including speed, load type, accuracy, and durability. There is no universal solution. The right bearing choice depends on your specific operating conditions. To help guide your decision, here’s an overview of the most common types of spindle bearings and their ideal applications. 1. Deep Groove Ball Bearings Function: Support moderate radial loads with consistent performance Best for: Simpler spindle designs where extreme precision is not required — such as standard drilling machines Advantages: Cost-effective, reliable, and easy to maintain While not typically used in high-end precision spindles, deep groove ball bearings remain a solid choice for general-purpose applications. 2. Angular Contact Ball Bearings (The Precision Standard) Function: Designed to handle both radial and axial loads simultaneously — a key requirement in precision spindles Key Benefits: High rigidity and excellent speed capability Can be preloaded to eliminate internal clearance, improving stability and accuracy Available in various contact angles (e.g., 15°, 25°) to optimize performance for different needs Common Applications: CNC machining centers, grinding spindles, high-speed milling These are the most widely used bearings in modern precision spindles — and represent a core specialty at Beining Technology. 3. Double Direction Angular Contact Thrust Bearings Function: Support high axial (thrust) loads from both directions Typical Use: Paired with radial bearings — such as cylindrical roller bearings — in spindles subjected to strong axial forces Ideal For: Turning, grinding, and drilling operations with significant thrust loading This combination delivers balanced performance under complex and demanding load conditions. 4. Double Row Cylindrical Roller Bearings Function: Handle very high radial loads at high speeds Key Advantage: Exceptional radial stiffness, minimizing deflection during heavy cutting Best Suited For: Spindles where maximum radial load capacity and rotational speed are top priorities These bearings are essential in heavy-duty machining applications requiring high rigidity and thermal stability. 5. Tapered Roller Bearings Function: Efficiently support combined radial and axial loads Features: Double-row designs can manage axial loads in both directions High load capacity with good speed performance Applications: Heavy-duty turning, milling, and large spindle systems Tapered roller bearings offer robust performance in demanding environments, especially when load capacity is more critical than ultra-high-speed operation. Maximize Your Spindle Performance with Beining Technology The right bearing selection enhances spindle accuracy, rigidity, and service life — directly impacting machining quality, efficiency, and tool longevity. At Beining Technology, we specialize in high-performance bearings for precision machine tool spindles. Our expertise includes: Premium Angular Contact Ball Bearings (our core strength) High-Quality Deep Groove Ball Bearings High-Rigidity Cylindrical Roller Bearings Custom-engineered solutions for specialized applications We help you achieve: Reduced vibration Improved rotational accuracy Longer spindle service life Higher machining efficiency Partner with Precision Experts Ready to optimize your spindle design or upgrade your current system? Beining Technology offers technical consultation, sample support, and tailored bearing solutions to meet your exact requirements. Contact us today or visit our product page to discuss your spindle bearing needs.

  Industrial robot arms require extreme precision, flexibility, and long-term reliability. At the heart of every high-performance joint lies a critical component: the crossed roller bearing (CRB). Here’s why CRBs are the preferred choice for robotic motion systems. 1. Handles Multi-Directional Loads in One Compact Unit Robot arms constantly experience radial, axial, and moment loads — often simultaneously. Unlike standard bearings, crossed roller bearings are designed to support all three load types in a single, integrated solution, making them ideal for complex robotic movements. 2. Exceptional Rigidity in a Compact Design The unique "crossed" roller arrangement provides 3 to 4 times higher rigidity than traditional ball bearings. This minimizes deflection and deformation under load, ensuring pinpoint accuracy — critical for tasks like precision assembly, welding, and automated handling. 3. Ultra-Slim with High Load Capacity With an ultra-thin cross-section, CRBs deliver maximum strength in minimal space. This makes them perfect for tight spaces within robotic joints, rotary tables, and compact actuators, where size and performance both matter. 4. Smooth, Vibration-Free Rotation Thanks to their split inner or outer ring design, CRBs allow precise preload adjustment. The result is ultra-smooth, consistent rotation with minimal friction — eliminating chatter and vibration for stable, high-speed operation. 5. Built to Withstand Harsh Industrial Environments From shock and vibration to continuous cycling, industrial robots operate under tough conditions. CRBs are engineered for durability and long service life, maintaining performance and accuracy even in demanding applications. In short Crossed roller bearings offer unmatched rigidity, compactness, multi-directional load capacity, and motion precision — making them the go-to solution for robot arm joints and rotating axes. Beining Technology – Precision Bearings for Robotics and Automation At Beining Technology, we specialize in high-performance crossed roller bearings built to meet the rigorous demands of modern robotics, automation, and advanced manufacturing. Our bearings are precision-engineered for reliability, longevity, and optimal performance. We collaborate with global leaders in robotics and transmission systems,including Unitree,Zhongda Decelerator and so son.  Looking for a reliable bearing partner? Explore our range of custom and standard CRBs for your next robotics project.

  A Practical Guide for Better Performance and Longer Life High-speed angular contact bearings are used in high-performance machines like CNC spindles, turbochargers, and aerospace equipment. These bearings can run fast and smooth — but only if they’re installed correctly. Here’s a simple breakdown of what matters most during installation. The 3 Key Rules for Installing High-Speed Bearings 1. Fit Matters — Especially When Things Heat Up When machines run fast, parts get hot. Metal expands when it’s warm, which affects how the bearing fits on the shaft or in the housing. Make sure the fit is tight enough to handle heat from high speeds, or the bearing might loosen or get damaged. At very high RPMs (like over 1 million dn), centrifugal force can push parts out of shape — so the fit must be just right. 2. Keep the Right Clearance Clearance is the tiny space inside the bearing. It needs to be just right — not too tight, not too loose. During installation, adjust for shaft expansion from heat so the bearing still has the right amount of space when running. Aim for a clearance of 3–8 microns — that’s thinner than a human hair! Make sure the inner and outer rings are perfectly aligned. If not, the bearing will wear unevenly. 3. Your Machine Must Be Up to the Task The bearing is only as good as the machine it’s in. The shaft and housing must be super precise — roundness and squareness must be within tight limits. Use lightweight but strong materials, like hollow shafts with hard surfaces, to keep things fast and stable. Balance the rotating parts well to reduce vibration, especially at high speeds. What Happens If You Skip These Steps? If you ignore even one of these rules, you could face serious problems: Bearing life can drop by over 45% Vibration gets worse — especially over 80,000 RPM Unexpected breakdowns can cost $10,000 or more per hour in downtime We Help You Get It Right At Beining Technology, we don’t just make bearings — we help you install and use them the right way: Bearings built to high standards (ABEC 7 / P4, ABEC 9 / P2) Custom fit and clearance recommendations for your machine Technical support tested in real high-speed environments (up to 15,000 RPM) Need help with your high-speed bearing setup? Please contact us :+8613034628052 sherrydong1981@gmail.com

At Beining Technology, we specialize in crossed roller bearings — compact components critical for high-precision machinery. Here’s why they are so important and where they make a difference. Why Choose Crossed Roller Bearings? Cross roller bearings handle forces from all directions (radial and axial loads). Their unique crossed roller design offers high rigidity and accuracy in a small space, making them perfect for demanding applications. Key Applications Industrial Robots In every joint and arm movement, cross roller bearings provide the stiffness and precise motion control needed for tasks like welding, assembly, and painting. CNC Machine Tools Our bearings ensure the accuracy required for machining parts to exacting tolerances, especially in high-speed spindles and precision axes. Medical Devices Inside CT scanners, MRI machines, and surgical robots, these bearings enable smooth, controlled motion vital for imaging clarity and surgical precision. Semiconductor & Display Manufacturing Chip fabrication and LCD/panel production rely on these bearings for ultra-precise positioning in wafer handlers and inspection stages. Precision Metrology CMMs and optical inspection systems depend on cross roller bearings for smooth sensor movement and repeatable measurements. Beining Technology: Focused Expertise We focus on delivering high-performance cross roller bearings designed to meet the challenges of precision machinery: High Accuracy & Rigidity – For applications requiring tight tolerances and minimal deflection. Compact & Durable Design – Reliable performance in space-constrained environments. Crossed roller bearings are crucial for modern high-tech industries. Explore Beining Technology's offerings for engineered solutions that meet your precision needs. Contact us to learn more about our cross roller bearing solutions.

The spindle is the heart of a CNC machine, grinding wheel, or high-speed router — spinning cutting tools at incredible speeds with extreme smoothness, stability, and accuracy. High-precision spindle bearings are the critical components that make this performance possible. Why Precision Matters in Spindle Bearings Spindle bearings are not standard bearings. They must meet exceptional performance demands: Extreme Precision: Measured in micrometers (µm), ensuring high-quality machining. High-Speed Operation: Low friction and minimal heat generation are essential. Heavy Load Capacity: Bearings must support both radial and axial forces from cutting. Rigidity & Stability: Prevent vibration and maintain stiffness under load. These bearings are manufactured to tight tolerances, with precision grades such as P5 and P4 (ABEC 7/9 equivalents). Higher precision (e.g., P4) is crucial for high-demand applications like fine milling and grinding. Common Types of High-Precision Spindle Bearings 1. Angular Contact Ball Bearings (ACBBs) Most widely used in spindle applications. Contact angles (e.g., 15° or 25°) allow for efficient load handling. Commonly used in matched pairs (DB, DF, DT) to enhance stiffness and life. Series: 70, 72, 718, 719. 2. Cylindrical Roller Bearings High radial load capacity and rigidity. Shorter rollers improve stability. Often used at the rear of the spindle or combined with ACBBs. Series: N, NN, NU. 3. Thrust Angular Contact Ball Bearings Designed for high axial loads and precise axial positioning. Large contact angles (e.g., 60°). Ideal for ball screw applications. Series: 7602, 7603, TAC. 4. Hybrid Ceramic Bearings Steel rings with Silicon Nitride (Si₃N₄) ceramic balls. Benefits:       Lower friction and heat generation.       Higher speeds due to lighter balls.       Longer lifespan and reduced wear. Used in high-speed machining centers and grinding spindles. Key Factors for Optimal Performance Manufacturing Quality: Precision geometry and surface finish ensure performance. Proper Installation: Requires specialized tools and proper preload adjustment. Effective Lubrication: Grease or oil must be selected carefully to manage heat and wear. Precision Mounting: Housing and shaft must match bearing tolerances. Thermal Management: Heat control and expansion management are vital for long-term accuracy. Choosing the Right Manufacturer Selecting the right spindle bearings requires expert knowledge. Manufacturers like Beining Technology specialize in high-precision angular contact (P4/P5 grades), supporting applications in CNC lathes, machining centers, grinders, and complex mill-turn machines. In Summary High-precision spindle bearings are essential for achieving the speed, accuracy, and rigidity demanded by modern machining. Understanding the types of bearings, installation requirements, and working with a reliable supplier is key to maximizing spindle performance in high-end manufacturing.

You might not think about it often, but the tiny space inside a motor bearing — called "clearance" — can make or break how smoothly your motor runs. It’s not just a number. It’s the invisible line between perfect operation and total failure. So what is bearing clearance, and why does it matter so much? Clearance 101: Radial vs. Axial Inside every motor bearing, you have the inner ring, outer ring, and rolling elements. The clearance is the space that allows them to move freely without jamming. Radial clearance is the side-to-side space between the rings when there’s no load. Axial clearance is the front-to-back space that allows movement along the shaft. Since no parts are perfectly made, manufacturers use careful measurements across multiple points to calculate the real, usable clearance. It’s a small detail — but one that has a huge impact on performance. Why Clearance Matters — A Lot When clearance is off, even slightly, the consequences can be serious. Load Distribution: Right clearance spreads the load evenly across all rolling elements. Wrong clearance puts too much pressure on just a few — and that leads to early failure. Noise & Vibration: Too much or too little clearance means more shaking and noise — not good for precision machines. Friction & Heat: Proper clearance keeps friction low, which means less heat buildup. Too tight? Things start to overheat fast. Bearing Life: Clearance is probably the single most important factor affecting how long a bearing lasts. Precision: In applications like robotics or CNC machines, even the smallest clearance error can throw off the whole system. The “Just Right” Zone — Not Too Tight, Not Too Loose Too Loose (Too Much Clearance): Load concentrates on fewer parts → higher stress → faster wear Bearings become less rigid → more vibration and noise Bearings wear out faster Too Tight (Not Enough Clearance): More friction → more heat Heat makes metal expand → makes clearance even worse Can lead to seizure, lubricant breakdown, and total motor stop It’s a dangerous cycle — and one that’s completely avoidable with the right design and manufacturing. How We Handle Clearance at Beining Technology At Beining, we know how important clearance is. That’s why we treat it like a mission-critical detail — not just a factory spec. We design our bearings with the right internal geometry so they perform well under real working conditions — not just on paper. Our daily output is around 600,000 bearings, with over 200 million pieces produced each year. Every one of them meets strict clearance standards. We use fully automated production lines, online quality inspection, and digital tracking to ensure consistent performance. Big data helps us learn from every batch, so we keep improving — automatically. We supply motor bearings to top Chinese home appliance brands like Midea and Haier, with monthly deliveries of 8–10 million pieces. Our quality and delivery speed have made us a trusted partner in the industry. The Bottom Line on Clearance Bearing clearance might be small, but it plays a huge role in how well your motor runs — and how long it lasts. It’s not something you can afford to ignore. And it’s not something you can leave to chance. When you choose a bearing supplier, make sure they understand clearance — and that they have the capability to get it right, every time. At Beining Technology, that’s exactly what we do.

High-speed precision bearings are essential for powering critical machinery — but when pushed to their limits, they can generate excessive heat that leads to performance issues and premature failure. At Beining Technology, we specialize in engineered solutions that keep your operations running cool, stable, and efficient. Here are our top 5 ways to prevent bearing overheating: 1. Choose the Right Precision Grade Start with high-performance bearings specifically designed for high-speed applications. Compromising on quality often leads to costly heat-related failures down the line. 2. Ensure Flawless Installation Even the smallest misalignment can create significant friction and heat. Make sure the shaft and housing bores are perfectly aligned during installation to avoid unnecessary stress on the bearing. 3. Master Lubrication Management Use only manufacturer-recommended oils or greases, and perform regular lubrication checks. Contaminated or degraded lubricants are one of the leading causes of bearing overheating. Pro Tip: High-speed applications often benefit from oil-mist or jet lubrication systems for optimal thermal control. 4. Respect Speed and Load Limits Exceeding the rated speed or load dramatically increases heat generation. Always operate within the manufacturer’s specified limits to ensure long-term reliability and performance. 5. Implement Active Cooling and Maintenance Use cooling methods such as enhanced airflow, cooling jackets, or external fans. Schedule regular maintenance to inspect bearings, clean housings, and prevent contamination buildup — all of which contribute to heat buildup. Precision Equals Performance Overheating not only shortens bearing life but also leads to unplanned downtime and costly repairs. By following these best practices, you can maximize bearing longevity, improve machine reliability, and maintain consistent performance — even under demanding conditions. Precise & Stable   Trust Beining Technology — your partner in high-speed precision bearing excellence. Explore our engineered solutions designed for peak performance, lasting reliability, and superior thermal management.

Bearings may be small, but they play a huge role in keeping your machines running smoothly. Over time, bearings wear out — and if you ignore the warning signs, the consequences can be costly and even dangerous. In this article, you’ll learn how to spot worn bearings, what happens if you ignore them, and why investing in high-quality bearings like those from Beining Technology makes a real difference. Signs Your Bearings Need Replacing Don’t wait until it’s too late. Here are the most common signs that a bearing has reached the end of its life: 1. Excessive Play or Looseness If the shaft connected to the bearing feels loose or wobbles more than usual — especially if the play is 30% or more beyond the machine’s original specifications — it’s time to replace the bearing. 2. Strange Noises: Grinding, Screeching, or Rumbling Healthy bearings run quietly with a smooth hum. If you hear grinding, screeching, or rumbling, it’s a sign that the internal components (like rollers or races) are damaged. 3. Unusual Vibration A sudden increase in vibration or irregular vibration patterns is often a red flag. These vibrations usually point to internal bearing damage. 4. Overheating Some heat is normal, but if the bearing is running more than 20°C hotter than usual, it could mean serious internal wear or friction. The Hidden Cost of Ignoring Worn Bearings Replacing a worn bearing may seem like a small expense — but ignoring it can lead to much bigger problems: Poor Product Quality: Worn bearings can cause shafts to wobble, leading to poor machining results — rough finishes, inaccurate dimensions, and higher rejection rates. Cascade Failures: A worn bearing puts extra stress on other parts like gears, shafts, and housings. This can lead to more breakdowns and expensive repairs. Safety Risks: In the worst cases, a severely worn bearing can lock up or break suddenly — causing unplanned downtime and even posing a danger to nearby workers. Why Quality Matters Not all bearings are created equal. High-quality bearings from trusted brands like Beining Technology are designed to last longer and perform better. Here’s how we help your machines run smoothly and reliably:   Extended Lifespan: Made from high-strength steel and advanced processing for better wear resistance.   100% Quality Inspection: Every bearing is tested to ensure it meets strict performance standards.   Precision Engineering: Ideal for critical applications like CNC machine spindles where accuracy and stability are essential.   Final Thoughts: Don’t Wait Until It’s Too Late Bearing wear is natural — but failure is avoidable. Stay proactive:   Listen for unusual noises   Feel for vibration or heat   Check for looseness   When it’s time to replace, choose high-performance bearings that offer real value and reliability. Ready to upgrade your machinery with high-quality bearings from Beining Technology? Contact us today to learn more about our full range of industrial bearings.    

  Power tool holders are essential components in modern turning-milling centers, enabling a wide range of machining operations such as drilling, milling, and tapping. The internal bearings within these tool holders play a critical role in maintaining the high precision required for quality machining. When bearing accuracy begins to decline, even slightly, it can lead to a cascade of performance issues — affecting tool life, part quality, and overall machine reliability. Recognizing the early warning signs and understanding the root causes are key to maintaining consistent machining precision and extending equipment life. I. Common Symptoms of Bearing Accuracy Degradation As bearing performance deteriorates, several noticeable symptoms may appear during operation: 1. Increased Tool Runout Unusual axial or radial vibration becomes visible during spindle rotation. This results in poor hole positioning accuracy and reduced surface finish quality. 2. Declining Machining Quality Even under the same process conditions, dimensional consistency and positional repeatability begin to suffer — especially evident in drilling and tapping operations. 3. Abnormal Noise and Resistance Unusual noises from the bearing area, rising spindle temperature, increased starting or rotational resistance, and even intermittent sticking can occur. 4. Reduced Equipment Lifespan Operating under suboptimal conditions accelerates bearing wear, shortens maintenance cycles, and increases overall downtime and costs. II. Root Causes of Bearing Accuracy Loss Understanding why bearing accuracy degrades is the first step toward prevention. The most common causes include: 1. Poor Bearing Material and Manufacturing Quality Grinding Defects: Micro-cracks, surface burns, or residual stress introduced during raceway grinding can accelerate fatigue and pitting. Inaccurate Raceway Geometry: Deviations in shape — such as ovality or out-of-roundness — lead to uneven load distribution and early accuracy loss. 2. Loss of Preload Power tool holders typically use matched pairs of angular contact bearings. Improper installation, thermal expansion, or wear can reduce preload, weakening the system’s rigidity and causing rapid accuracy decline. 3. Lubrication Failure When grease deteriorates, is insufficient, or becomes contaminated, the boundary lubrication between rolling elements and raceways breaks down. This leads to abrasive wear and progressive loss of geometric accuracy. 4. Heavy Loads and Impact Fatigue Frequent start-stop cycles, cutting vibrations, and overload conditions can cause micro-cracks or flaking (known as fatigue spalling) on the raceway surfaces — resulting in permanent loss of rotational accuracy. 5. Wear Over Time Even under normal use, internal bearing components gradually wear down. Over time, this wear exceeds acceptable limits, making consistent precision impossible to maintain. III. How Beining Technology Helps You Maintain Precision At Beining Technology, we understand that bearing quality is at the heart of reliable power tool holder performance. Our high-precision bearings are specifically designed to meet the demanding needs of machine tool spindle applications. Our Key Advantages: Ultra-Precision Bearings: We offer bearings from sizes 703 to 7016, with core products meeting P4 and P2 class precision standards. Superior Manufacturing: Our strict quality control during heat treatment and grinding ensures no surface burns and uniform internal stress distribution — for long-term stability. Customized Support: We analyze your specific equipment structure and operating conditions to provide tailored bearing selection, preload configuration, and specialized lubrication solutions. IV. Conclusion: Precision Starts with the Right Bearings Bearing accuracy loss in power tool holders can result from multiple interrelated factors. Identifying early warning signs and understanding the root causes are essential for effective maintenance or replacement planning. However, the most effective way to prevent performance issues is to choose high-quality, precision-engineered bearings from the start. Bearings that are built with reliable materials, precise manufacturing, and designed for the intended operating environment. At Beining Technology, we are committed to delivering core components that rotate with exceptional stability and minimal runout — continuously empowering precision manufacturing. Power Your Machining with Beining Precision Bearings With deep R&D expertise and strict manufacturing standards, Beining Technology’s precision bearings help enhance power tool holder performance and safeguard machining accuracy. Discover how our bearings can improve your system’s stability, extend tool life, and support consistent high-quality output.

Precision angular contact ball bearings are widely used in high-performance machines such as CNC spindles, robotics, and automation systems. These bearings are designed to carry both radial and axial loads with high accuracy and rigidity. One of the key factors that affect the performance of these bearings is preload — the controlled removal of internal clearance. Proper preload improves stiffness, reduces vibration, and ensures smooth, precise operation. There are two main preload methods: Positioning Preload and Constant Pressure Preload. Each has its own benefits and is best suited for different types of applications. 1. What Is Positioning Preload? Positioning Preload means fixing the axial position of the bearings once they are assembled. The preload stays the same during operation. How It Works: Bearings are matched and assembled with tight tolerances. Spacers or shims are used to control the exact amount of preload. In some cases, a locknut or screw is adjusted while measuring the starting torque. Advantages: High rigidity and precision Simple and cost-effective Stable performance in controlled environments Best For: Machine tool spindles Precision gearboxes Measuring equipment Applications with little or predictable thermal change 2. What Is Constant Pressure Preload? Constant Pressure Preload uses a spring (like a Belleville washer) to apply a steady force on the bearings. This keeps the preload stable, even when the position of the bearing rings changes. How It Works: A spring applies constant pressure to the bearing pair. As the shaft or housing expands or contracts due to heat, the spring adjusts to keep the preload force consistent. Advantages: Maintains preload under changing conditions Reduces risk of overheating or failure Good for high-speed and dynamic applications Best For: High-speed motor spindles Electric motors Aerospace components Semiconductor and optical equipment Which Method Should You Choose? Factor Best Method High precision and rigidity Positioning Preload High-speed or changing temperatures Constant Pressure Preload Simple and cost-effective setup Positioning Preload Long-term reliability under stress Constant Pressure Preload Why Choose Beining Technology? At Beining Technology, we design and manufacture high-quality angular contact ball bearings for a wide range of industrial and high-tech applications. Our engineering team can help you choose the best preload method for your specific needs — whether it's Positioning Preload or Constant Pressure Preload. With Beining bearings, you get: Reliable performance High precision and rigidity Long service life Torque Accuracy, Spindle Stability — Trust Beining Technology for precision angular contact ball bearings built for performance.