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FR8ZZ hexagonal bearings designed for FRC robots, made of high-carbon chrome steel, ABEC-3 precision, ZZ double dust seals, fast delivery in 7-10 days. Direct delivery from stock, support OEM customization! Improve the load capacity of robot joints, 0 fault verification.
Model Number: FR8ZZ
Size: 13x28.575x7.938mm
Weight: 0.013 KG
Specification
The FR8ZZ hex bearing is a precision component widely used in FIRST Robotics Competition (FRC) robots, designed specifically for 1/2 inch hex shaft systems. As an experienced supplier of hex bore bearings, we provide in-stock FR8ZZ hex bearings with stable quality, fast delivery, and support for small quantity orders.
This product is optimized for robot drivetrain assemblies, intake systems, shooter mechanisms, and rotating joints, where reliable torque transmission and consistent alignment are critical.
The FR8ZZ hex bearing features a single-row deep groove ball structure combined with a hexagonal bore, allowing direct installation onto hex shafts without the need for additional locking components.
Compared with standard round bore bearings, this design:
Eliminates shaft slippage
Simplifies assembly
Improves torque transfer efficiency
With double metal shields (ZZ), the bearing is protected against dust and light contamination, making it suitable for high-speed and continuous operation environments.
Technical parameter:
| Model Number | FR8ZZ |
| Size | 13x28.575x7.938mm |
| Weight | 0.013 KG |
| Material | chrome steel Gcr15 |
| Clearance | C2 C0 C3 C4 |
| Precision Grade | p0 |
| Dynamic Load Rating | 5.21 lbf |
| Static Load Rating | 2.46 lbf |
| Max Speed (Grease Lubrication) | 32000 RPM |
| Shield Type | ZZ |
| Lubrication | Pre-lubricated with High-Performance Grease |
| Temperature Range | -20°C to +120°C |
| Lead Time | 3-5 Days |
Related Products
| Model No. | d | D | H | m |
| FR0 | 1.19 mm | 3.97 mm | 1.59 mm | 0.11 g |
| FR1 | 1.4 mm | 4.76 mm | 1.98 mm | 0.2 g |
| FR1-4 | 1.98 mm | 6.35 mm | 2.38 mm | 0.41 g |
| FR133 | 2.38 mm | 4.76 mm | 1.59 mm | 0.13 g |
| FR133ZZS | 2.38 mm | 4.76 mm | 0 mm | 0 g |
| FR1-5 | 2.38 mm | 7.94 mm | 2.78 mm | 0.68 g |
| FR144 | 3.18 mm | 6.35 mm | 2.38 mm | 0.31 g |
| FR2-5 | 3.18 mm | 7.94 mm | 2.78 mm | 0.62 g |
| FR2-6 | 3.18 mm | 9.53 mm | 2.78 mm | 1.04 g |
| FR2 | 3.18 mm | 9.53 mm | 3.97 mm | 1.51 g |
| FR155 | 3.97 mm | 7.94 mm | 2.78 mm | 0.59 g |
| FR156 | 4.76 mm | 7.94 mm | 2.78 mm | 0.47 g |
| FR166 | 4.76 mm | 9.53 mm | 3.18 mm | 0.9 g |
| FR3 | 4.76 mm | 12.7 mm | 4.98 mm | 2.97 g |
| FR168B | 6.35 mm | 9.53 mm | 3.18 mm | 0.66 g |
| FR188 | 6.35 mm | 12.7 mm | 3.18 mm | 1.64 g |
| FR4B | 6.35 mm | 15.88 mm | 4.98 mm | 4.78 g |
| FR1810 | 7.94 mm | 12.7 mm | 3.97 mm | 1.71 g |
| FR6 | 9.53 mm | 22.23 mm | 7.14 mm | 10.1 g |
| FR8 | 13 mm | 28.58 mm | 7.94 mm | 13 g |
The FR8ZZ hex bearing for FRC robots is specifically suited for applications where hex shaft integration is required.
Typical use cases include:
Drivetrain systems – stable support for wheel shafts
Intake rollers – smooth rotation under continuous load
Shooter assemblies – high-speed performance with low vibration
Robot arm joints – reliable load handling and positioning accuracy
The hex bore ensures a secure mechanical connection, reducing backlash and improving system responsiveness.
We understand that many FRC teams and robotics developers require flexible purchasing options.
Small quantity orders accepted
No strict MOQ limitations
OEM customization available (logo, packaging)
Suitable for distributors and robotics part resellers
Unlike many custom hex bearings, this FR8ZZ model is available in large stock quantities.
Stock available for immediate shipment
Typical dispatch time: within 24–48 hours
Stable supply for team builds and competition schedules
This is particularly important for FRC teams working under tight timelines.
Each FR8ZZ hex bearing is manufactured using high-carbon chrome steel (GCr15) with precision-ground raceways and controlled heat treatment.
Quality control includes:
Dimensional accuracy inspection
Rotation smoothness testing
Noise and vibration checks
Surface hardness verification
This ensures consistent performance across batches, which is critical for both competition robots and OEM applications.
Dedicated focus on robotics and hex bore bearings
Strong inventory support for fast delivery
Experience with FRC and similar robotics applications
Flexible order quantities
Stable product quality across large batches
Is this bearing compatible with 1/2 inch hex shafts?
Yes, the FR8ZZ hex bearing is designed to fit standard 1/2" hex shafts used in FRC robots.
Do you have stock available?
Yes, this product is stocked and can be shipped within 24–48 hours.
Can I order small quantities?
Yes, small orders are supported without strict MOQ requirements.
Is this bearing suitable for high-speed applications?
Yes, it supports speeds up to 32,000 RPM and is commonly used in high-speed robot mechanisms.
Do you offer OEM customization?
Yes, we support custom packaging and branding for bulk orders.
If you are looking for a reliable FR8ZZ hex bearing supplier for FRC robots or robotics projects, contact us for pricing and availability.
Our team can provide:
Technical support
Fast quotation
Shipping solutions based on your location
