Customization: | Available |
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Material: | Chrome Steel |
Precision Grade: | P0 P6 |
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01 Introduciton
01 Production Site
Granville, a high-quality product manufacturer, ensures compliance with top standards in steel quality, contact surface design, and efficient packing and lubrication of parts.
Bore size | 3mm and up |
Closures | Open/ Non-contact metallic shields/ Non-contact seals/ Contact seals |
Ring Material | 52100 chrome steel/ 440C stainless steel/ 420C stainless steel |
Seal Materiial | Nitrile/ Polyacrylic/ Viton |
Retainer | Riveted steel/ Crimped steel/ Crowned steel/ Crowned nylon |
Precision Class | ABEC-1/ ABEC-3/ ABEC-5/ ABEC-7 |
Radial Clearance | C2/ C0/ C3/ C4/ C5 |
Heat Stabilization | S0/ S1/ S2/ S3 |
Our main objective is to continually improve product and process quality, achieved through ISO 9001:2008 and TS16949 certifications.
02 Manufacturing Process
From material coming, quality control through all processes. Except for internal test, goods to third-party inspection if required. After the center of inspection and experiment is founded, effective methods of inspecting all kinds of raw materials are mastered and then the reliability of bearings is ensured.
01 | Heat 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 |
09 | Measurement of Bearing Vibration(Acceleration) |
10 | Measurement of Bearing Vibration(speed) |
11 | Laser Marking |
12 | Automatic Packing |
03 Quality Control
Granville Group takes every effort in purchasing themost advanced automatic bearing process equipment.The accuracy grade of bearings is assured of equal orhigher than ABEC-3, Z3-V3 quality. The worthy,economical and reliable bearings are guaranteed by theexcellent wholly automatic production lines.