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S681 (cage) miniature deep groove ball bearings are mainly used in special miniature hollow cup motors. The inner and outer rings and steel balls are made of 440 material；hardness: HRC 58-62; bearing cage: 304 material; HV≤300; accuracy grade: P0; speed: up to 50,000 to 60,000 rpm. The clearance can be adjusted according to customer needs.
Product Description: S681 (cage) miniature deep groove ball bearings are mainly used in special miniature hollow cup motors.
The Inner and Outer Rings and Steel Balls are made of 440 material；
Hardness: HRC 58-62;
Bearing Cage: 304 material; HV≤300;
Accuracy Grade: P0;
Speed: up to 50,000 to 60,000 rpm.
**The clearance can be adjusted according to customer needs.
Product Advantages: High precision and high rotation speed. Structural parameters can be customized according to customer requirements.
Product Application: Mainly used in drive motors in medical robots, humanoid robots, ventilators (low power), cooling machines, military industry and other industries.
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