Shaft 20 Mm BNAT205 Crossed Roller Bearing 20X31X5mm
Shaft Diameter 20 mm BNAT205 Crossed Roller Bearing 20X31X5mm Precision Robot bearing Joints
BNAT205 ,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: 31 mm
- Bore Diameter: 20 mm
- Width:5mm
The BNAT205 bearing excels in applications requiring high performance and reliability, offering superior stiffness and load capacity while simplifying installation.
| Part Number | BNAT205 |
| Measurement System | Metric |
| Bearing Type | Roller Bearing |
| Roller Bearing Type | Crossed |
| For Load Direction | Combined Load |
| Construction | Single Row |
| Seal Type | Open |
| Bore Diameter | 20 mm |
| Outer Diameter | 31 mm |
| Width | 5 mm |
| Holes | With Holes |
| Ring Material | Steel |
| Roller Material | Steel |
| Basic Dynamic Load Rating(C) | 1500N |
| Basic Static Load Rating (Co) | 1400N |
| 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 | 0.015kg |
What's the Performance Features of BNAT205 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 BNAT205 Crossed Roller Bearing?
The application areas of the BNAT205 bearing are primarily concentrated in scenarios that demand high precision, lightweight design, and compact structure. These include the following fields:
1. Robotics Field
The ultra-thin structure characteristics of the BNAT205 bearing make it lightweight and compact, making it highly suitable for various types of robots. For instance, collaborative robots, service robots, and special-purpose robots often have high requirements for the weight and size of components to achieve flexible movement and operation. The BNAT205 bearing meets the needs of lightweight and compact structures for rotating parts in robots, ensuring their efficient operation.
2. Alignment Platform Field
In alignment platforms, precise rotation and positioning functions are required. The high precision and compact design of the BNAT205 bearing can provide stable rotational support for alignment platforms, ensuring accuracy and reliability during operation. This results in precise alignment operations.
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 | |||
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