Item No :
MF125ZZSize (d*D*B) :
5x12x4x13.6mmMaterial :
Chrome Steel Gcr15Cage material :
SteelLead Time :
5-7 daysWeight :
0.0021KGMOQ :
100 piecesHigh-Performance MF125ZZ Flanged Ball Bearing for FTC Robots
⚙️Product description:
Specifically engineered for high-stress robotics applications, the MF125ZZ Flanged Ball Bearing is a staple for FTC (First Tech Challenge) teams. The integrated flange allows for secure mounting in robot chassis, gearboxes, and lift mechanisms without the need for additional housing. Featuring double metal shields (ZZ), it provides excellent protection against dust and debris during intense competitions. Our MF125ZZ bearings are pre-lubricated with low-friction oil to ensure your robot’s drivetrain runs smoothly and efficiently.

| Parameter | Detailed Information |
| Model | MF125ZZ Bearing |
| Type | Flanged Deep Groove Ball Bearing |
| Size | 5x12x4x13.6mm (ID x OD x W x DF) |
| Material | Chrome Steel (Gcr15) + Steel Cage |
| Seal type | Double Side Metal Shields (ZZ Type) |
| Precision | ABEC-3 / ABEC-5 |
| Vibration | Z1V1/Z2V2/Z3V3 |
| MOQ |
100 pcs |
• Integrated Flange Design
The integrated flange on the outer ring allows for easy axial positioning and secure mounting in thin plates or robot chassis without complex housing.
• Double Shielded - ZZ
Equipped with two metal shields to prevent the ingress of dust, dirt, and competition field debris, ensuring a long service life and consistent performance.
• Premium Chrome Steel GCr15
Manufactured from high-quality GCr15 chrome steel for superior durability, high load capacity, and minimal wear under high-speed rotation.
• Pre-lubricated for Low Friction
Every bearing is pre-lubricated with professional-grade low-friction oil, reducing energy loss and ensuring your FTC robot's drivetrain operates at peak efficiency.
• High Precision ABEC Rating
Meeting ABEC-3 or higher standards, these bearings provide high dimensional accuracy and smooth rotation, crucial for precise autonomous movement in FTC.
• Perfect FTC Compatibility
Sized at 5x12x4mm, it is perfectly compatible with standard 5mm D-shafts and hex shafts commonly used in FTC robotics systems (e.g., GOBILDA, REV Robotics).
FTC Robots (First Tech Challenge).
| 1. Keep clean | 2. Use with caution | 3. appropriate tool | 4. Hot-loading | 5. Be careful of rust |
| Dust will have a bad effect on the bearing, so keep the surrounding clean. | Strong impact during use can easily cause scratches and indentations. | Avoid replacing existing tools, and use appropriate tools. | Bearings are precision parts, so hot installation is recommended. | Sweat on your hands during operation will cause rust, so it is best to wear gloves. |
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