Original IKO Crossed Roller Bearing CRBH/CRBC/CRBT - High Rigidity for Robots
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Highlight
IKO Crossed Roller Bearing high rigidity
,CRBH roller bearing for robots
,CRBC linear bearing with warranty
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Bearing TypeCrossed Roller (Cylindrical)
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Load DirectionSimultaneous Multi-Directional
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Precision ClassP5 / P4 / P2 Available
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Space ProfileSuper Slim & Ultra-Compact
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Rigidity LevelHigh Moment Rigidity
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Brand OriginJapan (100% Genuine IKO)
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Shipping TermInternational Express（DHL/FEDEX/TNT/UPS/ARAMEX）/sea Freight / Air Freight / International Special Line
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Freight ChargeFor Industrial Equipment (e.g., PLC Modules, Inverters..), Shipping Cost Varies By Package Weight/volume And Delivery Location. Contact Our Sales Team For A Customized Shipping Solution And Quote
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Place of OriginJapan
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Brand NameIKO
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CertificationISO 9001 / ISO 14001 、JIS、RoHS
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Model NumberCRBH/CRBC/CRBT
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Minimum Order Quantity1
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Price$150 - $1200
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Packaging DetailsOriginal
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Delivery Time3-5Workdays
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Payment TermsL/C,D/A,D/P,T/T,Western Union
Original IKO Crossed Roller Bearing CRBH/CRBC/CRBT - High Rigidity for Robots
Original IKO Crossed Roller Bearing CRBH/CRBC/CRBT - High Rigidity for Robots
IKO (Nippon Thompson) is one of the world's four premier bearing brands and a true pioneer in crossed roller bearing technology. While reducers are the "muscles" of a robot, IKO crossed roller bearings serve as the "skeletal pivot points." By arranging cylindrical rollers alternately at right angles in a V-shaped groove, IKO achieves exceptional radial, axial, and moment load capacities. These bearings are the core guarantee for "rock-solid" positioning in humanoid robot waists, arm joints, and high-precision rotary tables.
Product Highlights
- Extreme Integration & Space Saving: A single crossed roller bearing can replace two conventional radial bearings, drastically simplifying robot structural design and reducing joint volume.
- Superior Rotational Accuracy: Precision grinding of rollers and raceways provides sub-micron level rotational runout control, ensuring absolute precision in robot end-positioning.
- Simultaneous Multi-Directional Loading: The unique crossed arrangement allows the bearing to easily handle complex combinations of radial, axial, and tilting moment loads.
- Super Slim Design (CRBT Series): With sectional heights as low as 5.5mm, it is the top choice for lightweight joint designs in modern humanoid robots.
- High Rigidity & Torque Density: Even in small sizes, it provides incredible moment rigidity, preventing robot shaking under heavy loads or high-speed movement.
- Exceptional Smoothness (Caged Types): The CRBC/CRBH series utilize cages to prevent friction between rollers, resulting in low frictional torque and excellent low-speed smoothness.
Core Parameter Table (Key Series)
| Series | Structural Features | Precision Class | Min Bore (mm) | Typical Advantage | Typical Application |
|---|---|---|---|---|---|
| CRBH | Integrated Inner/Outer Ring | P5 / P4 / P2 | 20 | Ultra-stable, High Speed | Robot Main Joints, RTs |
| CRBC | Separable Outer Ring | P5 / P4 | 30 | Low Friction, Economic | Automated Indexing Tables |
| CRBT | Super Slim Type | P5 | 10 | Extreme Space Saving | Humanoid Fingers/Wrists |
| CRBF | With Mounting Holes | P5 / P4 | 10 | Simplified Assembly | Cobots, Medical Equipment |
| CRBS | Ultra-Small Section | P5 | 50 | Large Bore-to-Size Ratio | Optical Instruments, Radars |
Application Fields
- Humanoid Robotics: High-load waist bearings, hip joints under multi-directional stress, and lightweight dexterous hand joints.
- Industrial/Collaborative Robots: Main axis bearings (1st to 6th), SCARA robot bases, and AGV precision steering mechanisms.
- Precision Machine Tools: 4th/5th axis rotary tables, spindle supports, and ATC tool magazine rotation.
- Semiconductor Equipment: Wafer robots and AOI (Automated Optical Inspection) turntables.
- High-End Medical Imaging: Large CT scan turntables and precision surgical robot joints.
Frequently Asked Questions
Q: What is the main advantage of IKO bearings compared to standard ball bearings?
A: Standard ball bearings struggle to handle massive tilting moments. IKO crossed roller bearings use line contact (not point contact) and a crossed structure to provide 3-5 times the rigidity in the same volume while handling loads from all directions.
Q: Are the IKO bearings you sell 100% genuine Japanese products?
A: Absolutely. We provide only original IKO products with original packaging, anti-counterfeit labels, and batch number verification. We understand the fatal impact of counterfeit parts on a robot's lifespan.
Q: Which series should I choose if my joint space is extremely confined?
A: We highly recommend the CRBT Series. It is the pinnacle of IKO's super-slim technology, with a sectional height of only 5.5mm, enabling extremely compact robot designs.
Q: What is the typical service life of these bearings?
A: Under rated loads and proper lubrication, IKO bearings are designed for a service life of 10,000 to 20,000+ hours. Their superior materials and heat treatment ensure a very low long-term failure rate.
Q: Do I need special tools for installation?
A: To maintain precision, we recommend using professional press-fitting tools and strictly following the bolt pre-tension requirements in the manual, especially for the CRBF series with mounting holes.
Q: What is the lead time for common models?
A: We maintain small stocks for common models like CRBH/CRBC (1-2 weeks). Large orders or super-slim CRBT models typically require an 8-12 week factory lead time.
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