| Specification | No-Load Breakaway Torque | Description |
| F1 | 6.0-24.0 in-lb | Extremely Tight Need Tools to Move The Ball |
| F2 | 2.0-6.0 in-lb | Moderately Tight Move The Ball by Hands with Greater Resistance |
| F3 | 0.0-1.0 in-lb | No Clearance in The Bearing Easily Move The Ball by Hands |
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