Mathematics · Machine Design
एक बॉल बेयरिंग की बुनियादी गतिशील क्षमता (basic dynamic capacity) 18000 N है। इस बेयरिंग पर 5500 N का समतुल्य भार लगाया जाता है। मिलियन चक्करों (million revolutions) में बेयरिंग का निर्धारित जीवनकाल कितना होगा?
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