
Wholesale 12x18x4mm 6701ZZ/2RS Ultra Thin Section Bearings
| Item No : | 6701ZZ (Metal Shield) / 6701-2RS (Rubber Seal) |
| Size (d*D*B) : | 12x18x4mm |
| Material : | Chrome Steel GCr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.003KG |
| MOQ : | 100 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
Integrating a 12mm shaft into a highly constrained mechanical envelope? Our 6701ZZ and 6701-2RS Thin Section Bearings (12x18x4mm) are engineered specifically for precision mechanisms where weight and space are absolute premiums. With an ultra-slim 3mm cross-section, this bearing supports larger hollow shafts while keeping the housing volume exceptionally small. Available in high-speed metal shielded (ZZ) or dust-proof rubber sealed (2RS) variations, it delivers uncompromising rotational stability. As a dedicated B2B trade partner, we offer highly competitive wholesale pricing on our proprietary RMO brand, alongside flexible global sourcing for premium international legacy brands to meet your exact OEM requirements.

⚙️Product Features:
- Optimized Hollow Shaft Fit: The 12mm bore combined with an 18mm outer diameter creates an optimal ratio for running wiring or pneumatics through the center axis of robotics and gimbals.
- Dual Shielding Versatility: Select 6701ZZ (Metal Shields) for ultra-low friction and high RPM applications, or 6701-2RS (Rubber Seals) to lock in grease and repel micro-contaminants in harsh settings.
- High-Grade Chrome Steel (GCr15): Forged from premium 52100 chrome steel, ensuring superior wear resistance, load capacity, and an extended operational lifespan compared to standard alloys.
- Vibration-Free Precision: ABEC-rated precision grinding guarantees smooth raceways, minimizing acoustic noise and eliminating vibration during high-speed rotation.
- Comprehensive Supply Chain: Leverage our agile trading capabilities—mass produce with our cost-efficient RMO brand or procure spec-compliant global brands through our trusted network.
⚙️Product Application:
Perfectly balancing a larger bore with an ultra-thin profile, the 6701 series is the preferred component for:
- High-precision optical encoders, rotational sensors, and measuring instruments.
- NEMA micro stepper motors, brushless DC motors, and lightweight actuators.
- UAV camera gimbals, advanced drone gearboxes, and RC model drivetrains.
- Exoskeleton joints, surgical hand tools, and dental equipment mechanisms.
- Electronic hardware manufacturers and global B2B procurement managers seeking reliable thin-section components.
⚙️Precautions:
| 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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⚙️Technical Parameters:
| Item No. | 6701ZZ / 6701-2RS |
| Size | 12x18x4mm |
| Bearing Type | Thin Section Deep Groove Ball Bearing |
| Rings & Balls Material | Chrome Steel GCr15 |
| Sealing Form | |
| Internal Clearance | |
| Precision | P0( ABEC-1 ) / P6( ABEC-3 ) Optional |
| Working Temperature Range | -20°C to +120°C |
| Brand | RMO/Neutral/OEM/Other Brands |
| Package | Individual plastic bag, plastic tube or original RMO brand box |
| Lead Time | 3-5 days for stock; 7-15 days for bulk orders |
| Shipping | Express (DHL/FedEx/UPS), Air Freight, Sea Freight |
| Payment | 100% T/T, or 30% T/T In Advance, 70% T/T After Finished Production |
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