8x16x5x18mm F688ZZ Shielded Flanged Miniature Ball Bearing for 3D Printers
| Item No : | F688ZZ / F688-2Z |
| Size (d*D*B) : | 8x16x5x18mm |
| Material : | Chrome Steel GCr15 |
| Lead Time : | 3-5 days |
| Weight : | 0.0045KG |
| MOQ : | 100 pcs |
⚙️Product Description:
Engineering precision micro-mechanisms or high-speed automation where housing space is strictly limited? Our RMO Brand F688ZZ Flanged Miniature Deep Groove Ball Bearing (Size: 8x16x5mm, Flange OD: 18mm) offers the ultimate structural solution. The integrated solid flange on the outer ring revolutionizes axial positioning, allowing the bearing to lock perfectly into thin-walled housings without complex custom shoulders or retaining snap rings. Equipped with dual-sided steel shields (ZZ), it maintains excellent grease retention while defending internal components against ambient dust and debris. As an agile international bearing trader, we deliver this high-demand precision component under our highly profitable proprietary “RMO” brand for bulk distribution, or source world-class global tier-1 brands seamlessly to satisfy your exact technical specifications.
⚙️Product Features:
- Integrated Outer Ring Flange: Eliminates the need for custom housing shoulders, facilitating effortless flush-mounting and secure axial alignment in thin plates.
- Double Metal Shields (ZZ): Precision-stamped carbon steel shields effectively retain premium factory synthetic grease while minimizing frictional drag at high RPMs.
- Super-Finished Micro Raceways: Micro-honed groove geometries provide ultra-smooth ball rotation, ensuring exceptionally low starting torque and whisper-quiet operation.
- Premium Hardened Chrome Steel (GCr15): Forged from vacuum-degasified high-carbon chromium steel for high structural load stiffness and premium rolling wear resistance.
- Flexible Dual-Brand Supply: Maximize your wholesale markup with our direct factory RMO brand pricing, or leverage our sourcing desk to secure authentic global market-leading brands.
⚙️Product Application:
Engineered for maximum spatial efficiency and reliable high-speed endurance, the F688ZZ flanged bearing is widely utilized in:
- Desktop and industrial 3D printers (Z-axis lead screw supports, belt idler pulleys, and extruder assemblies).
- CNC routers, desktop engraving machinery, and micro stepper motor drive systems.
- RC models, remote-controlled cars, high-performance drones, and micro helicopter rotors.
- Precision medical laboratory equipment, optical scanners, and scientific testing instruments.
- Financial automation hardware, currency counters, and intelligent office sorting mechanisms.
⚙️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
Since its establishment in 2011, Rimao Bearing has combined international vision with local wisdom and injected innovative ideas into every bearing and pulley with its profound industry accumulation and unremitting pursuit of technology. We have not only passed CE and ROHS certification, but also set a new benchmark in the industry and led the development trend of the bearing industry.
We are not just a ball bearing and roller bearing importer and wholesaler. We provide real solutions to help you achieve the product and design goals set by your customers. With more than 20 years of production and sales experience, tens of thousands of models and specifications, we look forward to cooperating with you!
⚙️Technical Parameters:
| Model No. | F688ZZ / F688-2Z |
| Bearing Type | |
| Size | 8x16x5x18mm |
| Rings & Balls Material | Chrome Steel GCr15 |
| Sealing Form | |
| Precision | P0 (ABEC-1) / P6 (ABEC-3) |
| Limiting Speed | |
| 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 |
| Bearings No. | ID(d*D*H)mm | Weight (KG) | Bearings No. | ID(d*D*H)mm | Weight (KG) |
| F682ZZ | 2*5*2.3 | 0.001 | MF115ZZ | 5*11*4 | 0.001 |
| F683ZZ | 3*7*3 | 0.001 | MF106ZZ | 6*10*3 | 0.001 |
| F684ZZ | 4*8*3 | 0.001 | MF126ZZ | 6*12*4 | 0.002 |
| F685ZZ | 5*11*5 | 0.002 | MF117ZZ | 7*11*3 | 0.002 |
| F686ZZ | 6*13*5 | 0.003 | MF137ZZ | 7*13*4 | 0.003 |
| F687ZZ | 7*14*5 | 0.0035 | MF128ZZ | 8*12*3.5 | 0.003 |
| F688ZZ | 8*16*5 | 0.0045 | MF148ZZ | 8*14*4 | 0.009 |
| F689ZZ | 9*17*5 | 0.005 | F626ZZ | 6*19*6 | 0.009 |
| F692ZZ | 2*6*3 | 0.001 | MF84ZZ | 4*8*3 | 0.001 |
| F693ZZ | 3*8*4 | 0.002 | FR6ZZ | 9.525*22.225*7.142 | 0.006 |
| F694ZZ | 4*11*4 | 0.003 | F605ZZ | 5*14*5 | 0.004 |
| F695ZZ | 5*13*4 | 0.003 | MF74ZZ | 4*7*2.5 | 0.001 |
| F696ZZ | 6*15*5 | 0.004 | F608ZZ | 8*22*5 | 0.024 |
| F697ZZ | 7*17*5 | 0.006 | F606ZZ | 6*17*6 | 0.007 |
| F698ZZ | 8*19*6 | 0.008 | F625ZZ | 5*16*5 | 0.005 |
| F699ZZ | 9*20*6 | 0.002 | F624ZZ | 4*13*5 | 0.002 |
| MF52ZZ | 2*5*2.5 | 0.0005 | F623ZZ | 3*10*4 | 0.023 |
| MF72ZZ | 2*7*2.5 | 0.0005 | FR8ZZ | 12.7*28.575*7.938 | 0.025 |
| MF82ZZ | 2*8*2.5 | 0.001 | F607 | 7*19*6 | 0.01 |
| MF63ZZ | 3*6*2.5 | 0.001 | FR168 | 6.35*9.52*3.18 | 0.005 |
| MF104ZZ | 4*10*4 | 0.001 | SFRW168ZZ | 3.175*9.525*2.778 | 0.007 |
| MF85ZZ | 5*8*2.5 | 0.001 | F6801 | 12*21*5 | 0.006 |
| MF95ZZ | 5*9*3 | 0.002 | F6202ZZ | 15*35*11 | 0.05 |
| MF105ZZ | 5*10*4 | 0.0009 | F6800ZZ | 10*19*5 | 0.007 |
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