Shaft Diameter 10 mm BNAT105 Crossed Roller Bearing 10X21X5mm
Precision Robot bearing Joints
BNAT105 ,Ultra-Thin Section Type Both the inner and outer rings are of an integral structure. This
series minimizes axial and radial section dimensions to the extreme
(with a minimum section of just 5mm), featuring an ultra-thin
design. It is most suitable for applications requiring lightweight
and compact structures in rotating parts, such as collaborative
robots, service robots, special-purpose robots, and alignment
platforms.. Key features include:
- Outer Diameter: 21 mm
- Bore Diameter: 10 mm
- Width:5mm
The BNAT105 bearing excels in applications requiring high performance and
reliability, offering superior stiffness and load capacity while
simplifying installation.
| Part Number | BNAT105 |
| Measurement System | Metric |
| Bearing Type | Roller Bearing |
| Roller Bearing Type | Crossed |
| For Load Direction | Combined Load |
| Construction | Single Row |
| Seal Type | Open |
| Bore Diameter | 10 mm |
| Outer Diameter | 21 mm |
| Width | 5 mm |
| Holes | With Holes |
| Ring Material | Steel |
| Roller Material | Steel |
| Basic Dynamic Load Rating(C) | 1100N |
| Basic Static Load Rating (Co) | 800N |
| Lubrication | Required |
| Shaft Mount Type | Press Fit |
| Temperature Range | 0 -230 °F |
| ABEC Rating | ABEC5/7/9 (P5,P4,P2) |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 0.009kg |
What's the Performance Features of BNAT105 Crossed Roller Bearing?
- Ultra-Thin Profile: Minimized axial and radial dimensions for compact, space-saving
applications.
- High Precision: Ensures accurate rotation, ideal for robotics and precision
machinery.
- Lightweight: Reduces overall weight, perfect for robotic joints and portable
devices.
- Versatile Load Capacity: Handles radial, axial, and moment loads efficiently.
- Integral Structure: Single-piece inner and outer rings enhance rigidity and stability.
What's the Applications of the BNAT105 Crossed Roller Bearing?
The application areas of the BNAT105 bearing are primarily concentrated in scenarios that demand high
precision, lightweight design, and compact structure. These include
the following fields:
1. Robotics
- Collaborative Robots: Suitable for rotational support in joint sections, as its
ultra-thin design (height of only 5mm) meets the requirements for
lightweight and compact structures.
- Service Robots: Such as logistics robots, cleaning robots, and other equipment
with frequently rotating parts (e.g., heads, robotic arms) .
- Specialized Robots: Including firefighting robots, underwater robots, and other
special-environment operation equipment, requiring high rigidity
and stability .
2. Precision Industrial Equipment
- CNC Machines: Used in indexing mechanisms and rotary tables for high-precision
rotating components, replacing traditional bearings to improve
equipment response speed .
- Alignment Platforms: Such as precision positioning stages in semiconductor
manufacturing, requiring minimal section size and high rotational
accuracy .
3. Medical and Scientific Research Equipment
- Surgical Robots: Provides precise rotational support for joints, ensuring stable
performance in sterile environments .
- Medical Devices: Such as rotating components in imaging equipment, requiring low
friction and long service life .
4. Radar and Optical Equipment
- Mobile Radar Vehicles: Supports rotating antenna bases, requiring vibration resistance
and high reliability.
- Optical Instruments: Such as rotating platforms in telescopes and laser positioning
systems, demanding low backlash and high rigidity .
5. Other Industrial Applications
- Hollow Rotary Platforms: Supports inner rotors of direct-drive motors (DD motors),
requiring an extremely thin section to save space .
- Harmonic Reducers: Precision transmission components in robotic joints, relying on
the bearing’s high load-carrying capacity .
Bearing Number | Dimensions(mm) | Mounting Size | Basic Load Rating(N) | Inner Ring Mounting Hole | Outer Ring Mounting Hole | Reference
Weight(Kg) |
| Inner Diameter | Outer Diameter | Width | Chamfer | Dynamic | Static | Hole Center | Hole size | Hole Center | Hole size |
| d | D | B | r(min) | da | Da | Cr | Cor | dn | do | Dn | Do | Wt ≈ |
| RJ40 | 8 | 40 | 8 | 0.3 | 26 | 28 | 3020 | 3780 | 20 | 4-M3 | 34 | 6-ф2.8-ф4.6/凵2.8 | 0.06 |
| RU208 | 8 | 44 | 8 | 0.3 | 26 | 32 | 3020 | 3780 | 16 | 4-M3 | 38 | 4-ф3-ф 5/凵3 | 0.08 |
| RU28 | 10 | 52 | 8 | 0.3 | 24 | 29.5 | 2900 | 3400 | 16 | 4-M3 | 42 | 6-ф3.4-ф6.5/凵3.3 | 0.12 |
| RU42 | 20 | 70 | 12 | 0.6 | 37 | 47 | 7350 | 8350 | 28 | 6-M3 | 57 | 6-ф3.4-ф6.5/凵3.3 | 0.29 |
| RU52 | 30 | 80 | 12 | 0.6 | 46.5 | 58.5 | 8610 | 10600 | 35 | 6-M3 | 67 | 6-ф3.4-ф6.5/凵3.3 | 0.40 |
| RU66 | 35 | 95 | 15 | 0.6 | 59 | 74 | 17500 | 22300 | 45 | 8-M4 | 83 | 8-Φ4.5-Φ 8/凵4.3 | 0.62 |
| RU85 | 55 | 120 | 15 | 0.6 | 79 | 93 | 20300 | 29500 | 65 | 8-M5 | 105 | 8-Φ5.5-Φ9.5/凵5.4 | 1.00 |
| RU124 | 80 | 165 | 22 | 1 | 114 | 134 | 33100 | 50900 | 97 | 10-M5 | 148 | 10-Φ5.5-Φ9.5/凵5.4 | 2.60 |
| RU178 | 115 | 240 | 28 | 1.5 | 161 | 195 | 80300 | 13500 | 139 | 12-M8 | 217 | 12-Φ8.6-Φ14/凵8.6 | 6.80 |
| CRBTF105A | 10 | 43 | 5 | 0.15 | 12.5 | 38.5 | 2800 | 2500 | 16 | 6-M2.5 | 35 | 6-ф2.8-ф4.6/凵2.8 | 0.09 |
| CRBTF305A | 30 | 63 | 5 | 0.15 | 33.5 | 58.5 | 5040 | 4500 | 36 | 8-M2.5 | 55 | 8-ф2.8-ф4.6/凵2.8 | 1.20 |
| CRBT305-41A | 30 | 41 | 5 | 0.15 | 33.5 | 36.5 | 3640 | 3250 | - | 0.08 |
| RA5008C | 50 | 66 | 8 | 0.5 | 53.5 | 60.5 | 5100 | 7190 | - | 0.08 |
| RA6008C | 60 | 76 | 8 | 0.5 | 63.5 | 70.5 | 5680 | 8680 | - | 0.09 |
| RA7008C | 70 | 86 | 8 | 0.5 | 73.5 | 80.5 | 5980 | 9800 | - | 0.10 |
| RA8008C | 80 | 96 | 8 | 0.5 | 83.5 | 90.5 | 6370 | 11300 | - | 0.11 |
| RA9008C | 90 | 106 | 8 | 0.5 | 93.5 | 100.5 | 6760 | 12400 | - | 0.12 |
| RA10008C | 100 | 116 | 8 | 0.5 | 103.5 | 110.5 | 7150 | 13900 | - | 0.14 |
| BNAT105 | 10 | 21 | 5 | 0.2 | 12.5 | 18.5 | 1100 | 800 | - | 0.009 |
| BNAT205 | 20 | 31 | 5 | 0.2 | 22.5 | 28.5 | 1500 | 1400 | - | 0.015 |
| BNAT305 | 30 | 41 | 5 | 0.2 | 32.5 | 38.5 | 1900 | 2100 | - | 0.021 |
| BNAT408 | 40 | 56 | 8 | 0.2 | 42.5 | 53.5 | 4200 | 5800 | - | 0.027 |
| BNAT505 | 50 | 61 | 5 | 0.2 | 52.5 | 58.5 | 2400 | 3400 | - | 0.032 |
| BNAT555 | 55 | 66 | 5 | 0.2 | 57.5 | 63.5 | 2500 | 3700 | - | 0.035 |
| BNAT805 | 80 | 91 | 5 | 0.2 | 82.5 | 88.5 | 3000 | 5400 | - | 0.05 |
| BNAT905 | 90 | 101 | 5 | 0.2 | 92.5 | 98.5 | 3100 | 6000 | - | 0.056 |
If you need more detailed information , feel free to ask!
