
RMO F685ZZ Miniature Flange Bearing for RC Cars & 3D Printers
| Item No : | F685ZZ / F685-2Z (Flanged Miniature) |
| Size (d*D*B) : | 5x11x5x12.5mm |
| Material : | Chrome Steel GCr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.002KG |
| MOQ : | 100 pcs |
| Service : | Support Sample Testing |
⚙️Product Description:
Need precise axial positioning for standard 5mm shafts without complex machining? The F685ZZ Flanged Ball Bearing (5x11x5mm, 12.5mm Flange) is the industry’s go-to solution for NEMA 17 stepper motors, RC model hubs, and V-slot rollers. Its integrated flange acts as an immediate mechanical stop, enabling fast flush-mounting against thin panels. As a specialized B2B bearing trader, we offer highly competitive wholesale pricing on our field-tested RMO brand, or we can source premium international brands for your demanding OEM assemblies.

⚙️Product Features:
- 12.5mm Flange Stopper: Completely eliminates the need for internal housing shoulders, allowing easy through-hole mounting on 5mm shaft setups.
- Perfect 5mm Shaft Fit: Specifically dimensioned for standard 5mm shafts common in NEMA 17 motors and 3D printing kinematics, ensuring zero radial play.
- ZZ Dual Shields: Precision metal shields keep out 3D printing filaments and RC track dust, permanently sealing in high-speed lubricant.
- GCr15 Chrome Steel: Manufactured from high-purity bearing steel, ensuring excellent wear resistance under rapid, oscillatory linear motions.
- B2B Supply Agility: Order bulk cartons of our cost-effective RMO inventory for aftermarket retail, or utilize our global network for OEM-certified brand imports.
⚙️Product Application:
Highly standardized for rapid 5mm shaft mechanics, the F685ZZ series is widely utilized in:
- 3D printers and CNC machines (V-slot polycarbonate rollers and extruder idlers).
- Stepping motor assemblies (NEMA 17 motor end-caps and gearboxes).
- RC cars and hobbyist robotics (Wheel hubs, steering blocks, and drive shafts).
- Micro-automated conveyor systems and light packaging guide rollers.
- Global 3D printing parts distributors, hobby shops, and automation component importers.
⚙️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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⚙️Obtain Certificate:
About Rimao
⚙️Technical Parameters:
| Model No. | |
| Bearing Type | Flanged Deep Groove Ball Bearing |
| Size | 5x11x5x12.5mm |
| Flange Thickness | 1 mm |
| Shielding Type | Dual Metal Shields ZZ |
| Tolerance Class | ABEC-1 (P0) / ABEC-3 (P6) Optional |
| Material | Chrome Steel Gcr15 |
| Dynamic Load (Cr) | ~ 716 N |
| Static Load (Cor) | ~ 282 N |
| Max RPM | ~ 40,000 RPM (Grease) |
| Lead Time | 3-5 days for stock; 7-15 days for bulk orders |
| Brand | RMO/Neutral/OEM/Other Brands |
| Shipping Port | Guangzhou, Ningbo, Shanghai |
| Shipping Method | 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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