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

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.

Why Do Electric Motor Bearings Leak Electricity? (Causes & Prevention Tips) Have you ever wondered why electric motor bearings fail prematurely despite proper lubrication and regular maintenance? One often overlooked cause is bearing current leakage, also known as electric motor bearing leakage or shaft voltage discharge. When stray electrical current passes through the bearings instead of the intended path, it can cause significant damage — including pitting, fluting, noise, vibration, and even complete motor failure. In this article, we’ll explore: What causes bearing current in electric motors How to identify early signs of damage Practical strategies to prevent future failures Let’s get started. What Is Bearing Current Leakage? Bearing current leakage occurs when unintended electrical current flows through the motor’s bearings rather than staying within the designed electrical circuit. This phenomenon typically happens due to imbalances in the magnetic field or high-frequency voltages generated by variable frequency drives (VFDs). Over time, these currents create microscopic arcing between the bearing components. This leads to surface damage such as pitting and fluting — a repetitive groove-like erosion pattern on the bearing raceway. Eventually, this damage results in increased noise, vibration, and premature bearing failure. Common Causes of Bearing Current Leakage 1. Moisture and Water Intrusion Humid environments or exposure to water can degrade internal insulation and wash away protective lubricants. As a result, electricity may find a new path — often through the bearings. Tip: Use sealed bearings and ensure appropriate motor enclosures for wet or outdoor applications. 2. Oil, Grease, and Dirt Buildup Contamination from oil, dust, or debris on motor windings reduces their insulation performance. This allows stray current to escape and travel through the bearings to ground. Tip: Clean motor internals regularly and use non-conductive, high-quality grease. 3. Damaged Wire Insulation Cracked or aged insulation on power cables — especially near terminal boxes or where wires enter the motor housing — creates a direct path for current leakage. Tip: Conduct regular visual inspections and insulation resistance tests. 4. Overheating and Aging Prolonged operation under high temperatures accelerates the aging of insulation materials. Once insulation breaks down, it no longer contains the electrical current effectively. Tip: Monitor motor temperature and avoid long-term overloading. How to Prevent Bearing Current Leakage Here are some practical steps you can take to extend the life of your electric motors and reduce unplanned downtime: 1. Keep Motors Dry Use proper sealing and ventilation to minimize moisture buildup. Store motors in dry environments and choose appropriate enclosures based on operating conditions. 2. Clean Windings Regularly Remove conductive contaminants from windings and internal components during scheduled maintenance. This helps maintain good insulation properties. 3. Inspect Wiring Routinely Check all wiring connections and insulation for wear or damage. Replace any faulty cables or terminals immediately. 4. Manage Heat and Wear Avoid motor overloading and ensure cooling systems are functioning properly. Older motors or those used in harsh environments are more prone to insulation breakdown. 5. Install Shaft Grounding or Use Insulated Bearings In high-risk applications, install shaft grounding rings or use insulated bearings to redirect stray currents safely to ground, bypassing the bearings entirely. Expert Tip: If you suspect bearing current issues, consult with a qualified motor technician or maintenance specialist for a professional diagnosis. The Cost of Ignoring Bearing Current Allowing bearing current to go unchecked can lead to costly consequences: Increased maintenance and repair costs Unplanned production downtime Safety risks due to unexpected motor failure By understanding the root causes — such as moisture, contamination, insulation failure, and aging — you can take proactive steps to protect your equipment and improve operational efficiency. Final Thoughts Preventing electric motor bearing leakage starts with regular inspection, proper maintenance, and awareness of your electrical system's health. Whether you're managing a single motor or an entire industrial facility, addressing these issues early can significantly reduce repair costs and prolong equipment life. If you’re experiencing frequent bearing failures or suspect electrical leakage, don’t wait — reach out to our team of motor experts today for a professional diagnosis and customized solution. Want More Technical Insights? Subscribe to our newsletter or follow our blog for more in-depth guides on motor maintenance, troubleshooting, and industrial best practices.

Choosing the Right Bearings for Your Electric Motors Motor bearings may be small, but they play a big role in keeping industrial motors running smoothly. One of the most important factors in bearing performance is how well it handles heat. Exceeding temperature limits can lead to early failure, costly downtime, and reduced motor efficiency. In this article, we’ll walk through the key points engineers and maintenance teams should know when selecting bearings for electric motors. 1. Heat Stabilization Treatment Temperature (HSTT) Bearing steel isn’t just strong — it’s specially treated to hold its shape and strength under heat. This treatment sets a limit known as the Heat Stabilization Treatment Temperature (HSTT). If the bearing runs hotter than its HSTT, it can lose hardness and change shape slightly. These changes can cause vibration, noise, and shorten the life of the bearing. Different types of bearings (like deep groove, angular contact, or cylindrical roller) and different brands have different HSTT ratings. Always check the manufacturer's datasheet for exact values. 2. Standard vs. High-Temperature Bearings Most standard motor bearings are built for normal conditions: Usual range: -30°C to +120°C (-22°F to +250°F) But some applications — like high-speed spindles, furnace fans, or motors in hot environments — need more protection. For these, choose high-temperature (HT) bearings, which are made to handle temps above 120°C (250°F), sometimes up to 200°C (392°F) or higher. 3. Don’t Overlook Cages & Seals Even if the steel can take the heat, the cage and seal materials might not. Common Cage Materials: Steel / Stainless Steel: Good for high temperatures (up to 150°C+) Brass: Similar high-temp performance Polyamide (PA66): Cost-effective but only good up to around 120°C — avoid it in hot-running motors Seal Options: NBR (Nitrile Rubber): Standard choice, works well from -30°C to +120°C FKM (Viton® type): Better for high temps, from -20°C to +200°C PTFE and other polymers: For extreme conditions with high heat or chemicals 4. Grease Matters More Than You Think Grease keeps the bearing running smoothly, but it reacts strongly to temperature. Too hot: Grease gets runny, leaks out faster, and loses protection Too cold: Grease thickens, making startup harder and reducing lubrication When choosing grease: Check viscosity at your operating temp Make sure the dropping point is well above your max temp Pick one with good oxidation resistance Plan for re-lubrication intervals, especially in hot environments 5. How to Choose the Right Bearing To avoid failures, follow these steps: ✅ Measure actual bearing temperature, not just ambient or motor surface ✅ Pick a bearing with HSTT higher than your max operating temp ✅ Check cage and seal materials match your thermal needs ✅ Use the right grease for your temp range ✅ Use cooling methods if needed — like airflow or cooling jackets Why It All Matters Getting bearing temperature limits wrong can lead to: Early bearing failure Increased maintenance costs Vibration and noise Safety risks Lower energy efficiency Choosing the right motor bearing is about more than size and load rating. Temperature tolerance is a core design factor that affects reliability, uptime, and long-term performance. If you're building or maintaining motors where precision and stability are critical — like in automation, robotics, or high-speed machining — make sure your bearings are up to the thermal challenge. Torque Accuracy. Spindle Stability. Beining Technology. High-performance motor bearings designed for reliable operation across a wide temperature range.

  Motor bearings are the unsung heroes of electromechanical systems. One critical, often overlooked parameter determining their performance and lifespan is bearing clearance: the measured movement of an unclamped inner or outer ring radially or axially when the other ring is fixed. Understanding Clearance: Radial vs. Axial Radial Clearance: Movement perpendicular to the shaft axis. Axial Clearance: Movement parallel to the shaft axis (typically smaller than radial). This measured gap exists before installation under zero load and represents the average movement, accounting for manufacturing tolerances in rings and rolling elements. Why Bearing Clearance Matters: Performance & Lifespan Impact Choosing the correct clearance isn't optional – it's fundamental to motor health: Too Little Clearance (Excessively Tight): Creates excessive friction and heat build-up during operation. Worst case? Catastrophic failure through bearing seizure ("high-temperature lock-up"), destroying the bearing and potentially damaging the motor. Too Much Clearance (Excessively Loose): Allows excessive internal movement of rolling elements, leading to vibration, noise, uneven load distribution, accelerated wear, and ultimately, premature bearing and motor failure. The Clearance Balancing Act: Key to Optimal Performance Precise clearance control during motor design and manufacturing is non-negotiable. It directly dictates: Operational Stability: Minimizes vibration for smooth rotation. Temperature Management: Prevents dangerous overheating. Load Distribution: Ensures even stress on rolling elements. Longevity: Extends bearing and overall motor service life significantly. The Bottom Line for Engineers & Buyers Selecting motor bearings with the optimal internal clearance (often designated as C3 for electric motors where thermal expansion needs accommodation) is crucial. It's the cornerstone for achieving reliable operation, minimizing downtime, and maximizing the return on investment in any motor-driven system. Torque Accuracy, Spindle Stability – Starts with the Bearing. Choose Precision. Beining Technology – Expertise in Critical Motor Bearing Solutions

Keep your machinery running smoothly and avoid costly downtime by taking proper care of your precision bearings. Follow these easy maintenance steps from the bearing experts at Beining Technology. Step 1: Remove Wheels & Screws Safely Before working on bearings: Use a magnetic tray to keep screws secure and organized Take photos or notes showing how parts fit together for easier reassembly later Step 2: Remove Bearings Carefully Always use the correct size hex wrench Never hit or hammer directly on the bearing For tight fits, apply even pressure with proper tools to avoid damage Step 3: Clean Bearings Properly Use soft brushes or lint-free cloths to wipe away dirt and debris Avoid using harsh chemicals unless necessary Work in a clean area — dust and particles can shorten bearing life Step 4: Check the Cover Type First Some bearings have removable covers, others don’t: ✅ C-ring groove: Removable cover – safe to open ❌ Solid metal edge: Permanent seal – do not open unless necessary Step 5: Open C-Ring Covers (If Safe) If your bearing has a removable cover: Slide a thin screwdriver into the groove Gently lift out the C-ring Keep all small parts in a safe place for reassembly Step 6: Warning About Permanent Covers ⚠️ Only open sealed bearings in emergencies: Opening will break the cover Bearing performance drops by up to 60% Plan to replace the bearing soon after opening Step 7: Clean & Lubricate Correctly Soak bearings in cleaning solvent (if needed) Swirl gently to remove built-up grime Pack with high-quality grease made for precision bearings Spin by hand to evenly spread the lubricant How Often Should You Service Bearings? Equipment Recommended Service Interval CNC Machines Every 400 operating hours Medical Devices Every 3 months Factory Robots After 5 million movements Why Choose Precision Bearings? Using high-quality precision bearings gives you: Up to 10x longer accuracy retention Reduced machine vibration Energy savings through smoother rotation 3 Warning Signs of Failing Bearings Don’t ignore these red flags: Screeching, grinding, or unusual noises Overheating housing (above 65°C / 150°F) Visible rust, dents, or rough movement Pro Tip: For the longest service life and consistent performance, choose "Torque Stable" precision bearings designed for industrial and high-precision applications. Looking for Expert Bearing Support? At Beining Technology, we help manufacturers keep their machines running with high-quality bearings and expert advice. Contact us today for bearing selection, replacement, or maintenance support.  

A technical guide from Beining Technology Angular contact ball bearings are like the "joints" of many precision machines — such as robots, machine tools, and aerospace equipment. And the seal is one of the most important parts that keep them running smoothly. What Does a Bearing Seal Do? Think of the seal as the bearing’s “protective suit.” It has three main jobs: Keep grease inside – So the bearing stays well-lubricated Keep dirt out – Dust, moisture, and particles can’t get in Maintain pressure – Keeps the internal tension just right for smooth operation If the seal fails, big problems can happen: Bearing life may drop by more than 50% Maintenance costs can double Unexpected downtime often lasts over 4 hours per incident Why Do Seals Fail? 1. Low-quality materials or poor production Some seals are made with bad materials or wrong manufacturing steps. They may become stiff, crack, or wear out fast. ✅ How Beining solves this: We use high-quality rubber and strict testing to make sure every seal lasts long and performs well. 2. Poor design Some seals are simply not built for the job. For example: Too tight → causes overheating Too loose → lets in dust and oil leaks Wrong material for high heat or chemicals ✅ How Beining solves this: We use simulation tools to design better seals that match real-world conditions. 3. Improper installation or harsh environments Many seal failures come from mistakes during installation or using bearings in extreme conditions. ✅ How Beining helps: We offer support before and after purchase: Mounting advice and virtual simulations Environmental checks and recommendations Custom designs for special needs ✅ Engineering Support You Can Trust We don’t just sell bearings — we help you use them better: Free consultation before installation On-site or remote environmental analysis Custom solutions for unique applications   Want Better Bearing Performance? Email us: sherrydong1981@gmail.com WhatsApp: +86 180 5823 8053 Learn more: www.precisionball-bearing.com

By Beining Technology – Experts in Precision Spindle Bearings Is your CNC machine vibrating, overheating, or losing cutting accuracy? The issue may be with the angular contact ball bearings inside the spindle. These components are essential for maintaining high precision and smooth operation. At Beining Technology, we specialize in high-performance spindle bearings. Our motto:Precision Torque, Stable Spindle — a promise to deliver quality and reliability. In this guide, you’ll learn how to identify and fix common bearing problems — and how to prevent them from happening again. Common Causes of CNC Spindle Bearing Failures 1. Improper Bearing Fit Even small mismatches between the shaft, housing, and bearing can cause early failure. Solution: Check all dimensions carefully against manufacturer specifications. A proper fit ensures even load distribution and longer bearing life. 2. Incorrect Installation Methods Using the wrong tools or improper installation techniques can damage bearings before they’re even used. Solution: Use the correct mounting tools and follow the recommended procedures. Avoid applying force directly on the bearing race. Control temperature during thermal fitting. 3. Lubrication Issues Too little grease, the wrong type, or contamination from coolant or dust can increase heat and wear. Solution: Only use the recommended lubricant. Keep seals clean and inspect lubrication levels regularly. 4. Unusual Noise or Vibration Grinding sounds, excessive vibration, or unexpected heat are signs of possible bearing issues. Solution: Monitor spindle operation closely. Detecting these symptoms early can help avoid costly downtime. Preventative Maintenance Tips Material Compatibility: Make sure the shaft and housing materials are compatible with the bearing to avoid misalignment or stress. Replace Worn Seals: Damaged seals allow dust and coolant into the system. Replace them regularly to protect your bearings. Schedule Regular Inspections: Include spindle bearing checks in your maintenance routine to catch problems early. Why High-Precision Bearings Matter High-quality angular contact ball bearings provide: Minimal vibration Accurate torque transmission  Stable spindle operation   With proper installation and care, they help keep your CNC machine performing at its best — reducing unplanned downtime and improving productivity. Partner with Beining Technology for Reliable Spindle Bearings When it comes to spindle bearings, precision matters. Whether you're troubleshooting an existing system or upgrading for better efficiency, our team is here to support you. http://www.precisionball-bearing.com