• Model NO.：NA4904
• Separated：Unseparated
• Precision：P0, P6, P5
• Weight：0.075KG
• Basic Dynamic Load Rating：21.6kN
• Basic Static Load Rating：28 kN
• Limiting Speed：17 000 R,MIN
• Transport Package：Industrial Packing, Single Box
• Specification：20x37x17
• Trademark：GIL or Customized
• Origin：Zhejiang
• HS Code：8483200000

Product Description

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Company Profile

Quality Warranty

Granville as a manufacturer of high quality products, guarantees compliance with the highest standards relative to the use of the best steel quality in the production process, the highest standards in the design of contact surfaces, as well as the most efficient packing and lubrication of parts. From material coming, quality control through all processes. Except interal test, goods to third party inspection if required. After the center of inspection and experiment being founded, effective methods of inspecting all kinds of raw materials are mastered and then the reliability of bearings is ensured. One of our main objectives is the continued improvement in the quality of our products and processes, in pursuit of which we obtained ISO certification 9001:2008 and TS16949. 

Advantage Manufacturing Processes and Quality Control:
01Heat Treatment
02 Centerless Grinding Machine 11200 (most advanced)
03 Automatic Production Lines for Raceway
04 Automatic Production Lines for Raceway
05 Ultrasonic Cleaning of Rings
06 Automatic Assembly
07 Ultrasonic Cleaning of Bearings
08 Automatic Greasing, Seals Pressing
09Measurement of Bearing Vibration (Acceleration)
10 Measurement of Bearing Vibration (Speed)
11 Laser Marking
12 Automatic Packing