Tag: Quality Control

  At Wafangdian JinYu Bearing Manufacturing Co., Ltd., quality isn’t an afterthought—it’s the foundation of our process. Our state-of-the-art Inspection Workshop is the heart of our commitment to delivering bearings of uncompromising precision and reliability to partners worldwide. The Inspection Workshop is equipped with state-of-the-art tools. Coordinate Measuring Machines ensure micron-level accuracy in bearing dimensions, […]

In bearing manufacturing, even a 0.1μm difference in surface roughness can determine the lifespan, friction, and noise of your product. The Roughness Tester is the precision tool that ensures every bearing surface—from raceways to rolling elements—meets the strict standards your customers demand. Roughness Tester Critical Roles in Bearing Production Raceway Precision Bearings like deep groove […]

The radial run – out, noise, and service life of bearings during operation are 80% related to “roundness”. A roundness deviation of 0.5μm in the bearing raceway may lead to a decrease in equipment accuracy. With an ultra – high measurement accuracy of 0.01μm – 0.1μm, the roundness tester has become a core equipment for […]

As high-precision measuring instruments, dial indicators can magnify and display minute displacements (at 0.01mm level) through mechanical structures. They are fundamental tools for detecting dimensional deviations and geometric errors in bearing production, widely used in all stages from raw blanks to finished products. Dial indicator used for precision measurement of bearing components Core Application Scenarios […]

As the “joints” of mechanical equipment, bearings’ operational stability directly affects equipment precision, noise levels, and service life. Bearing vibration measuring instruments act like precision “stethoscopes,” capturing subtle vibration signals during bearing operation and scientifically analyzing their internal quality—making them indispensable quality control tools in modern bearing manufacturing. Bearing Vibration Measuring Instrument What is a […]

Precision inspection of bearing components using a Coordinate Measuring Machine 1. Raw Material & Blank Inspection At the initial stage of bearing manufacturing, CMM is used to screen qualified blanks and avoid waste in subsequent processing: Inspect basic dimensions of blanks (outer diameter, inner diameter, height, etc.) Check basic geometric defects (ellipticity, end face flatness, […]

Observing the microstructure of bearing steel under a metallurgical microscope In the bearing manufacturing process, product quality directly determines the operational precision and service life of equipment. As a professional instrument for inspecting the microstructure of metallic materials, the metallurgical microscope plays an irreplaceable role in various stages of bearing production and is a key […]

Ultrasonic flaw detectors play a critical role in quality control throughout the bearing lifecycle, ensuring reliability and performance in critical applications. Raw Material Inspection Detects internal defects in bearing steel (e.g., GCr15) such as: Porosity and shrinkage cavities Non-metallic inclusions Hidden cracks before manufacturing Manufacturing Process Control Identifies process-related defects during production: Forging and heat […]

Introduction In the highly precise bearing industry, accurate measurement is paramount to ensuring product quality, performance, and longevity. One-meter length measuring instruments play a crucial role in maintaining the strict dimensional tolerances required for bearing components. These precision tools enable manufacturers to verify critical dimensions, detect deviations, and ensure compliance with international standards. This article […]

At ​Wafangdian JinYu Bearing Manufacturing Co.,Ltd, we engineer bearings through a rigorous 8-stage process, combining advanced metallurgy and smart manufacturing. From raw steel selection to final packaging, every step ensures ISO SO 9001:2015-certified quality. Below, we visualize our production flow with key stages and technologies. 1. Raw Material Preparation Process:​ Material Selection:​ High-grade alloy steel […]