Kalite Hassas Bilyalı Rulmanlar & Eğik Bilyalı Rulmanlar Üretici

A Practical Guide for Precision Spindle Assembly   Angular contact ball bearings are essential for high-speed, high-precision machine tool spindles. When used in matched pairs — such as back-to-back, face-to-face, or tandem configurations — they provide excellent rigidity and load-carrying capacity. However, their performance depends on one critical factor: correct preload.   And the key to setting preload? The spacer between the bearings.   This guide walks you through the step-by-step process of adjusting spacers to ensure optimal bearing performance, longer spindle life, and superior machining accuracy.   Why Spacer Adjustment Matters   The spacer, also known as a distance ring or gap ring, controls how tightly the two bearings are pressed together. This directly affects internal preload:   Correct Preload: Removes internal clearance, increases stiffness, reduces vibration, and ensures smooth, quiet rotation. Too Much Preload: Causes high friction, rapid temperature rise, and can lead to early bearing failure. Too Little Preload: Results in axial play, noise, vibration, and poor machining quality. Pro Tip: Never assume the spacer is ready to use out of the box. Most require fine grinding to match your specific application and achieve the ideal preload.   Step-by-Step: How to Adjust Spacers   Step 1: Choose Your Bearing Arrangement   The configuration determines which spacer controls the preload:   Back-to-Back (DB): Best for handling moment loads. Preload is set by the outer ring spacer. Face-to-Face (DF): Better at accommodating minor misalignment. Preload is controlled by the inner ring spacer. Tandem (DT): Used when high axial load capacity in one direction is required. Both bearings share a common spacer. Choose the right setup based on your machine’s load and precision needs.   Step 2: Measure All Components   Use a precision micrometer to measure:   The width of each bearing’s inner and outer rings The initial thickness of the spacers Even tiny differences — as small as 0.001 to 0.005 mm — can significantly impact preload. Accuracy is crucial.   Step 3: Adjust the Spacer Width   This is the most important step:   To increase preload, make the spacer slightly thinner. To decrease preload, make the spacer slightly thicker (or replace it with a larger one). Note: Spacer grinding requires precision equipment and experience. If you don’t have the tools, consider working with a bearing service center or using factory-preloaded matched sets.   Step 4: Clean Everything Thoroughly   Contamination is a major cause of incorrect preload and premature failure. Before assembly, clean:   The spindle shaft and housing The bearings The spacers Use a lint-free cloth and a pure solvent like isopropyl alcohol. Handle all parts with gloves to avoid fingerprints and oil transfer.   Step 5: Assemble Carefully   Follow these best practices:   Place the spacer between the bearings, ensuring full and flat contact. Use a proper press tool — never use a hammer, as impact can damage raceways. Apply even, steady pressure during installation. Misalignment or uneven force can ruin the adjustment and damage components.   Step 6: Test the Setup   After assembly, run a short test:   Operate the spindle at low speed (20–30% of maximum RPM) for 10–15 minutes. Monitor bearing temperature — a quick temperature rise means preload is too high. Check for unusual noise or vibration — smooth operation is ideal. Use a dial indicator to measure axial play — any movement indicates insufficient preload. If any issues arise, disassemble and re-adjust the spacer until the results are within specification.   Pro Tip: Save Time with Pre-Adjusted Bearing Sets   For consistent, reliable results, consider using factory-matched, preloaded bearing pairs. These sets come with precisely ground spacers and are tested for specific preload levels — eliminating trial and error and reducing setup time.   Conclusion: Precision Makes the Difference   Adjusting spacers is not just a mechanical step — it’s a precision process that directly affects spindle performance, accuracy, and bearing lifespan.   By measuring carefully, adjusting accurately, cleaning thoroughly, and testing before full operation, you can achieve maximum rigidity, stability, and reliability in your high-performance applications.   About Beining Technology   Beining Technology specializes in high-precision angular contact ball bearings for CNC spindles, grinding machines, electric motors, and industrial automation systems.   We offer: Matched bearing pairs in DB, DF, and DT configurations Custom preload options (light, medium, heavy) Technical support for installation, maintenance, and optimization Contact us today for product specifications, free samples, or expert advice on selecting the right bearing solution for your machine.

Precision, speed, and reliability—these are the demands of modern CNC machining. At the heart of every high-performance spindle are precision bearings, and their performance depends heavily on one critical factor: the right lubricating grease.   Using the wrong grease can lead to overheating, premature wear, vibration, and even spindle failure. At Beining Technology, we specialize in precision spindle bearings—and we know that proper lubrication is just as important as the bearing itself. Here’s what you need to know to choose the best grease for your CNC spindle bearings.   Best Types of Grease for Spindle Bearings   Not all greases are suitable for high-speed, high-temperature spindle applications. The top-performing options include:   1.Synthetic Greases (PAO or Ester-based)   Why it works: Synthetic base oils offer superior thermal stability and oxidation resistance.   Benefits: Maintains consistent viscosity at high speeds, reduces friction, and extends re-lubrication intervals.   Ideal for: High-speed spindles (30,000+ RPM) and continuous operation. 2.Anti-Wear (AW) & Extreme Pressure (EP) Greases   Why it works: Contains additives like Molybdenum Disulfide (MoS2) or graphite that form a protective layer under heavy loads.   Benefits: Prevents metal-to-metal contact during shock loads, rapid acceleration, or start-stop cycles.   Ideal for: Heavy cutting, milling, and applications with frequent load changes. 3.Lithium Complex Greases   Why it works: Lithium complex thickeners provide excellent high-temperature performance, water resistance, and mechanical stability.   Benefits: Multi-purpose, long-lasting, and resistant to softening or bleeding.   Ideal for: General-purpose spindles operating under variable loads and temperatures. Key Factors When Choosing Spindle Grease   Temperature Performance   Spindle bearings can reach 80–120°C or higher. Choose grease with a dropping point above 180°C and a continuous operating range that matches your spindle’s conditions.   Oxidation Resistance   Prevents grease from hardening, forming sludge, or losing lubricity during long runs. Synthetic greases perform best in this area.   Rust and Corrosion Protection   Moisture and contaminants can damage precision raceways. Look for greases with anti-rust additives to protect bearing surfaces.   Consistency (NLGI Grade)   Most spindle bearings use NLGI Grade 2 or 3. Grease that is too soft may leak; too stiff may not distribute evenly.   Brand and Quality   Low-quality grease may contain impurities that accelerate wear. Always choose reliable brands or OEM-recommended products to protect your investment.   Why Grease Choice Matters for Your Spindle   Extends bearing life by reducing wear and heat buildup Improves machining accuracy by minimizing vibration and thermal growth Reduces downtime with longer service intervals Protects your CNC equipment investment The Beining Technology Advantage   At Beining, we don’t just manufacture precision spindle bearings—we understand the full ecosystem of performance. Our engineering team can help you:   Select the optimal grease for your spindle type and application Recommend re-lubrication intervals Provide technical support for maintenance best practices Protect your productivity. Maximize spindle life.   Contact Beining Technology today for expert guidance tailored to your machinery and operating conditions.    

  Spindle rulmanları, CNC değirmenleri, öğütücüler ve yüksek hızlı motorlar gibi hassas makinelerde kritik bileşenlerdir.ve pahalı onarımlar. Bu sorunlardan kaçınmanıza yardımcı olmak için, işte döner rulman arızasının başlıca 5 nedeni ve bunları nasıl önleyeceğiniz. Kötü yağlamaYetersiz, yanlış veya bozulmuş yağlayıcı, daha fazla sürtünmeye, aşırı ısınmaya ve hızlı aşınmaya neden olur.Ya da planlandığı gibi tekrar yağlanmaması erken arızalara neden olabilir.. Önleme: Üreticinin önerdiği yağlama aralıklarına uyun ve doğru yağ türünü ve miktarını kullanın. Yanlış KurulumYerine yerleştirmek, yanlış hizalaştırmak, uygunsuz bir şekilde yerleştirmek (çok sıkı veya çok gevşek) veya yanlış aletler kullanmak, ilk günden itibaren yarışlara ve yuvarlanma elemanlarına zarar verebilir. Önleme: Her zaman uygun aletler ve teknikler ile monte edin. Asla doğrudan rulmana çekiç atmayın. Belirtilen termal veya mekanik yöntemleri kullanın. KirlenmeYükleme alanına giren toz, metal kırıntıları, kir veya nem abrazif gibi hareket eder, iç yüzeyleri yavaşça öğütür ve aşınmayı hızlandırır. Önleme: Etkili mühürler kullanın (örneğin, 2RS, ZR), montaj ortamlarını temiz tutun ve rulmanları dikkatlice kullanın. Aşırı yüklenmeMakinaların tasarım sınırlarının ötesinde çalışması rulmanlara aşırı baskı yapar, bu da brinelling'e, çatlaklara ve yorgunluk başarısızlığına yol açar. Önleme: İsimlendirilmiş yük ve hız özellikleri içinde çalışın. Uygulama taleplerine uyumlu taşıma kapasitesi. Korozyon ve NemSu girişi veya koroziv kimyasallara maruz kalmak, özellikle mühürler hasar görmüşse veya nemli ortamlarda olsa pas vermeye neden olur. Önleme: Korozyona dayanıklı malzemeler (paslanmaz çelik gibi) veya mühürlü rulmanlar kullanın. Daha uzun ömürlü taşımak için profesyonel ipuçları: Düzenli bakım programlarına bağlı kalın Sıcaklığı ve titreşimini izleyin Çalışma alanlarını temiz ve kuru tutun Teknikçileri düzgün bir şekilde kullanmaya hazırlayın. Kesinlik ve dayanıklılık için tasarlanmış yüksek kaliteli rulmanları seçin İpucu: Beining Teknolojisi gibi kaliteli rulmanlara yükseltmek, kullanım ömrünü önemli ölçüde uzatabilir, duraklama süresini azaltabilir ve makinenin performansını artırabilir. Son düşünce:Doğru seçimi, montajı ve bakımıyla, spindle rulmanları yıllarca güvenilir ve yüksek hassasiyetle çalışabilir. Akıllıca seçin, düzenli olarak bakım yapın, daha iyi çalışın. Beining Akıllı Teknoloji (Zhejiang) Co., Ltd.Motorlar, Robotik ve Otomasyon için hassas rulmanlarWhatsApp: +86 180 5823 8053Web sitesi:www.precisionball-bearing.com