Jul 16, 2025
You use the fr8zz hex bearing when you want your robot to run smoothly and last longer. This bearing fits perfectly on a hex shaft, which is common in FRC robots. Many teams trust the fr8zz hex bearing because it handles high loads and keeps dust out. You need to understand the specs of each bearing to get the best performance. Rimao Bearing give you high-quality fr8zz hex bearing options for your projects.
Key Takeaways
The FR8ZZ hex bearing fits a 12.7mm (1/2 inch) hex shaft. This size is common in FRC robots. You can install it easily without extra parts.
It is made from strong GCr15 chrome steel. It has double metal shields. This helps the bearing resist dust, dirt, and heat. It lasts a long time.
The thicker inner ring and ABEC-3 rating give smooth movement. They help the bearing handle heavy loads and impacts.
You should clean, lubricate, and check the bearing after events. This keeps it working well and stops damage.
Picking the FR8ZZ bearing helps your robot run smoothly. It also helps your robot work well in tough contests and school projects.
What Is the FR8ZZ Hex Bearing
You use the fr8zz hex bearing when you want a strong and reliable part for your robot. This bearing fits a 1/2 inch hex shaft, which is common in many FRC robots. The hex shape inside the bearing helps your robot’s shaft turn smoothly without slipping. Rimao Bearing and RMO make this bearing for teams that need high performance and easy installation. You can trust this bearing to handle tough matches and long practice sessions.
Key Features
You get several important features with the fr8zz hex bearing:
Hex Bore: The 12.7mm hex bore matches standard FRC shafts. You do not need a key for installation.
GCR15 Steel: The bearing uses high carbon chromium steel. This material gives you strength and long life.
ABEC-3 Rating: You get smooth and precise movement because of the ABEC-3 precision.
ZZ Shields: Double metal shields keep out dust and dirt. Your bearing stays clean and works longer.
Thicker Inner Ring: The inner ring is 30% thicker than standard bearings. This helps the bearing handle more force and reduces the chance of cracking.
Size
You need to know the exact size of your bearing to make sure it fits your robot. The FR8ZZ hex bearing has a 12.7mm (1/2 inch) hex bore. This matches most FRC hex shafts. The outside diameter measures 28.575mm, and the width is 7.938mm. These compact dimensions let you use the bearing in tight spaces on your robot. The thicker inner ring adds strength and helps the bearing handle more force during matches.
Dimension
Value
Hex Bore (ID)
12.7 mm
Outer Diameter
28.575 mm
Width
7.938 mm
Inner Ring
30% thicker
Material
The FR8ZZ hex bearing uses high-quality chrome steel, also known as GCr15. This material gives you excellent hardness and wear resistance. The steel cage inside the bearing keeps the balls in place and reduces noise. You get a bearing that lasts longer and works smoothly, even under heavy use. You can trust this material to handle the stress of robotics competitions. Chrome steel resists bending and cracking, so your bearing stays reliable through many matches.
Load Ratings
You want your bearing to support both radial and thrust loads. The FR8ZZ hex bearing is designed for high-stress robotics work. It has a static load capacity of at least 1.8kN. This means it can handle heavy weights and sudden impacts. The thicker inner ring helps spread the force, so the bearing does not crack under pressure.
Aspect
Details
Static Radial Load Rating
~1.8 kN (minimum)
Dynamic Load Rating
~400 lbs (when using two bearings to share load)
Thrust Bearing Capability
Supports moderate thrust loads in addition to radial loads
Load Distribution
Using two bearings improves load sharing and durability
Radial bearing strength lets your robot’s wheels or arms spin smoothly under weight. Thrust bearing support helps when your robot faces side forces or bumps. Always use steel hex shafts with these bearings. Steel shafts prevent deformation and help the bearing last longer.
Shielding
You need to protect your bearing from dust and dirt. The FR8ZZ hex bearing uses double metal shields (ZZ type) on both sides. These shields keep out contaminants and help the bearing run quietly. The shields also keep the grease inside, so you do not need to lubricate the bearing often.
How These Specs Help Your Robot
Each technical spec adds to the durability and performance of your robot. The precise dimensions ensure a perfect fit. The chrome steel material gives you strength and long life. High load ratings mean your bearing can handle tough matches and heavy parts. Double shielding keeps your bearing clean and running smoothly. When you choose the FR8ZZ hex bearing, you get a part that supports your robot’s success in every competition.
Environmental Factors
Robotics competitions can be dusty, dirty, or even wet. You need to keep your bearings safe from these tough places. The FR8ZZ hex bearing uses double shields to block dust and water. This design helps your bearing last longer and keeps your robot fast.
You should follow some easy steps to protect your bearings:
Use shields or covers to keep out dust and water.
Use the right grease to lower friction and wear.
Check and fix shafts often to keep them straight.
Pick materials that do not rust if your robot gets wet.
Watch for trouble, like noise, shaking, or heat, and fix it fast.
The right care keeps your bearing safe from harm. Regular checks help you find problems before they get worse. If your robot runs hot or fast, pay extra attention to grease and shields.
You want your robot to do well in every match. By picking high temperature bearings and following good care steps, you help your team win. Always check your bearings for damage and keep them clean and greased. This care helps your robot handle speed, heavy loads, and hot places.
Application in Robotics
FRC and Educational Robots
You see the FR8ZZ hex bearing used in many FRC robots. Teams choose this bearing because it fits the standard hex shaft and handles tough matches. You can install it easily in your drivetrain, arm joints, or any moving part. The thicker inner ring helps your robot survive impacts and heavy loads. Many teams also use this bearing in practice robots and test beds. You can trust it for both competition and learning.
In educational robots, you want parts that last. The FR8ZZ hex bearing gives you smooth movement for wheels, gears, and rotating arms. You can use it in 3D printed or CNC machined parts. This makes your robot easy to build and repair. Teachers and students like this bearing because it works well and does not need much maintenance.
Industrial Uses
You find the FR8ZZ hex bearing in more than just robots. Many engineers use it in industrial applications. You can add it to lightweight machines, automated production lines, or testing equipment. The bearing’s double shields keep out dust and help it last in busy factories.
If you design custom parts with CNC or 3D printing, you can use this bearing for smooth rotation. It fits well in precision tools and small machines. The strong steel and thick inner ring help prevent damage, even with heavy use. You get a reliable part for many different applications.
Common Applications
Why Choose FR8ZZ Hex Bearing?
FRC Robots
High load, easy fit, proven record
Educational Robots
Durable, low maintenance
3D Printed/CNC Parts
Keyless install, smooth movement
Industrial Automation
Dust protection, long life
You help your team or company succeed when you pick a bearing with a strong record and many uses.
Choosing the Right Bearing
You want your robot to run smoothly and last through many matches. Start with a good bearing selection guide. Look at the shaft size, load needs, and speed of your robot. The FR8ZZ hex bearing fits a 12.7mm hex shaft and handles high loads. Check if your robot needs double shields for dust protection. If you use your robot in a dirty place, double shields help keep the bearing clean. Always match the bearing to your robot’s design and the tasks it will do.
Installation Tips
You get the best results when you install the bearing the right way. Work in a clean area to keep out dust and dirt. Use the right tools to avoid damage. Hot-loading helps the bearing fit better on the shaft. Wear gloves to protect the bearing from rust and scratches. Make sure the shaft is straight and smooth before you install the bearing. If you see any dents or rough spots, fix them first.
Maintenance
You keep your robot running well with regular maintenance. Check your bearings often for signs of trouble. Watch for these signs:
Excessive noise from the bearing
Increased vibration during operation
Overheating of the bearing
Visible wear or damage on bearing surfaces
If you notice any of these, you may need to clean or replace the bearing. Good lubrication is important. Use the right grease to lower friction and stop overheating. Clean the bearing if you see dirt or dust. Always check for rust and fix it fast. Regular maintenance and proper lubrication help your bearing last longer and keep your robot ready for action.
You now know the most important specs of the FR8ZZ hex bearing. The hex bore, GCr15 steel, ABEC-3 rating, and double shields help your robot perform better and last longer. When you choose bearings from RMO, you get proven quality.
Make a checklist for bearing selection and maintenance.
Check your bearings often to keep your robot ready for action.
Where can you buy high-quality FR8ZZ hex bearings?
You can buy from trusted bearings suppliers like Rimao Bearing. They offer high-quality bearings tested by many robotics teams. You get fast delivery and reliable support.
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