F687ZZ 8mm REX Bore Flanged Bearing Replacement for GOBILDA 1611 Series
| Item No | F687ZZ – HEX / RM-1611-8REX |
| Inner Diameter | 7.0 mm (Fits 8mm REX & 7mm Hex Shafts) |
| Size (d*D*B) | 7x14x5x15mm |
| Material | Chrome Steel Gcr15 |
| Lead Time | 3-5 days |
| MOQ | 50 pcs |
⚙️Product Description:
Looking for a reliable, budget-friendly drop-in replacement for your robotics projects? Our F687ZZ Hex Bore Flanged Bearing (Size: 7mm x 14mm x 5mm, Flange OD: 15mm) is specifically modified with a hexagonal inner bore to serve as a perfect alternative to the GOBILDA 1611 Series (8mm REX bore 1611-0514-4008) bearings. Designed specifically for FTC (FIRST Tech Challenge) robotics, It perfectly matches 8mm REX shafts or 7mm hex shafts, preventing profile slipping under high torque. We hold a large, ready stock of this model to ensure fast dispatch during tight competition and building schedules. Available under our proprietary high-quality “RMO” brand, with flexible sourcing options for other major brands to suit your exact needs.
⚙️Product Features:
- Exact GOBILDA Compatibility: Designed as a direct mechanical replacement for the GOBILDA 1611 series, fitting seamlessly into existing 14mm bore channels.
- No-Slip Hex Bore: Modified with a 7mm hex profile that perfectly grips 8mm REX shafts, delivering positive drive power transmission without set screws.
- Flanged Outer Ring: The 15mm outer flange allows for clean flush mounting inside sheet metal chassis, channel brackets, and custom grid plates.
- Premium Material & Shielding: Built from industrial-grade chrome steel with double metal shields (ZZ) to block dust, debris, and field fibers.
- Massive Ready Stock: Skip the long factory lead times; our substantial localized inventory ensures immediate shipping for wholesale or urgent retail orders.
⚙️Product Application:
Due to its precise 14mm OD and 8mm REX/7mm hex compatibility, this F687ZZ flanged bearing is widely used in:
- FTC (FIRST Tech Challenge) and FRC robotics chassis built on the GOBILDA platform.
- Compact planetary gearboxes and custom servo-driven drivetrains.
- Intake mechanisms, conveyor rollers, and lift systems utilizing 8mm REX shafts.
- Educational STEM robotics kits and DIY mechatronics prototyping.
- Precision motion control applications requiring small-scale hex-driven transmission.
⚙️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 | F687ZZ-HEX / RM-1611-8REX |
| Bore shape | REX (Round Hex) |
| Size | 7x14x5x15mm |
| Flange Thickness | 1mm |
| Cross Reference | GOBILDA 1611 Series (8mm REX Bore) |
| Inner Diameter / Bore | 7.0 mm (Fits 8mm REX & 7mm Hex Shafts) |
| Material | High-quality Chrome Steel (Gcr15) + Steel Cage |
| Seal type | Double Side Metal Shields (ZZ Type) |
| Precision | ABEC-3 (P6) / ABEC-5 (P5) |
| Weight | 0.0028kg |
| Stock Status | Large Inventory Available / In Stock |
| MOQ | 50 pcs |
| Brand | RMO Brand / Sourcing for Other Brands / OEM |
| 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 Method | Express (DHL/FedEx/UPS), Air Freight, Sea Freight |
| Shipping Port | GUANGZHOU, NINGBO, SHANGHAI |
| Payment | 100% T/T, or 30% T/T In Advance, 70% T/T After Finished Production |
CAD Files
f687zz-hex-bearing-drawing.pdfLayout Prints
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