N15 15*24*5mm Super Precision High-speed Cylindrical Roller Bearings Without Outer Ring for Robot Reducers
The N15 cylindrical roller bearing without outer ring,inner diameter d is 15,outer diameter D is 24mm,the width B is 5mm.
Cylindrical roller bearings without an outer ring are known as outer ring-less roller bearings. Such bearings are adopted in specific application scenarios, for instance, in systems where space is limited or special configurations are required. The design without an outer ring makes the installation of the bearing more flexible, allowing it to come into direct contact with other parts to achieve specific mechanical functions. In certain industrial applications, such as automotive transmission systems or precision machinery, outer ring-less roller bearings are widely used due to advantages like compact structure, lightweight, and high load-bearing capacity.
| Name | High-speed Cylindrical Roller Bearings for Robot Reducers |
Bearing Number | Boundary Dimensions(mm) | Basic Load Rating(N) | Limiting Speed(rpm) |
| Inner Diameter | Outer Diameter | Width | Chamfer | Dynamic | Static | Grease | Oil |
| d | D | B | r(min) | Cr | Cor | Non-contact |
| mm | mm | mm | mm | N | N | r/min | r/min |
| N9 | 9 | 14 | 3 | 0.3 | 1760 | 1900 | 21200 | 26600 |
| N15 | 15 | 24 | 5 | 0.3 | 2560 | 2800 | 14300 | 17200 |
| N17 | 17 | 26 | 5.6 | 0.3 | 3560 | 3900 | 13300 | 16000 |
| N25 | 25 | 37 | 7 | 0.3 | 5120 | 5600 | 8700 | 10600 |
| N35 | 35 | 47 | 7 | 0.3 | 7390 | 8100 | 7300 | 6500 |
| N45 | 45 | 58 | 7 | 0.3 | 9300 | 10200 | 6900 | 6200 |
This series of products is continuously evolving and advancing in response to growing customer demand.
Applications of Outer Ringless Cylindrical Roller Bearings (or Full Complement Cylindrical Roller Bearings without Outer Rings)
Due to their compact structure, high load capacity, and ease of installation, outer ringless cylindrical roller bearings are widely used in various fields:
Reduction Gears and Gearboxes:
Primarily used in planetary gear reducers and industrial gearboxes, their compact design saves space and enhances transmission efficiency.
For example, planetary gearbox designs can directly utilize the inner bore of gears as the outer raceway, simplifying the main unit design.
Gearboxes in wind power drives require handling high torque and impact loads, where these bearings meet heavy-duty requirements.
Construction Machinery:
Suitable for cranes, port machinery, mining equipment, and other heavy machinery.
Components like pulley sets in lifting machinery and port cranes need high radial load capacity.
In steel mill continuous casting machines and mining crushers, bearings must remain stable under extreme conditions.
Automotive Industry:
Applied in critical components such as transmissions, steering systems, and drive shafts.
Automotive transmissions require compact designs to reduce axial dimensions while withstanding high-speed rotation and combined loads.
The drivetrains of construction vehicles and heavy trucks rely on the high reliability and easy maintenance of these bearings.
Wind Power Equipment:
Speed increasers and main shaft systems in wind turbines require lightweight, long-life bearing solutions. These bearings adapt to low-speed, heavy-load, and frequent start-stop conditions.
Precision Machinery and Automation Equipment:
Used in applications like machine tool spindles and robot joints, where high precision and low friction characteristics enhance equipment performance.
These bearings offer versatile solutions across a broad range of demanding applications, ensuring reliability, precision, and efficiency in everything from heavy industry to advanced automation technologies.
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N15 15*24*5mm Super Precision High-speed Cylindrical Roller Bearings Without Outer Ring for Robot Reducers Images
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