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Home / Double Row Angular Contact Ball Bearing / Double Row Angular Contact Bearing With Two Inner Rings

Double Row Angular Contact Bearing With Two Inner Rings

The double row angular contact bearing with two inner rings generally adopts high-quality bearing steel, such as GCr15, etc., and is manufactured through multiple precision processing procedures, including forging, heat treatment, grinding, and so on. The advanced manufacturing process ensures the dimensional accuracy and surface quality of the bearing, enabling it to operate stably under high-speed and high-precision working conditions.

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Double Row Angular Contact Bearing With Two Inner Rings
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TOP PRODUCT TYPES DENTAIL APPLICATION RELATED PRODUCTS
Double Row Angular Contact Bearing With Two Inner Rings
  Type Main dimensions Rated load Rated speed
      Dynamics Static Speed limit
Mail   d[mm] D[mm] B[mm] C[kN] C0[kN] [r/min]
3086313.0 65 140 29 163.6 150.5 -
3318 DA 90 190 36 225.0 250.0 -
3317 DA 85 180 36 198.5 205.4 -
3316 DA 80 170 34 190.0 196.0 -
3315 DA 75 160 34 174.2 165.4 -
3314 DA 70 150 31 163.4 158.1 -
3313 DA 65 140 29 144.4 137.5 -
3312 DA 60 130 27 119.9 109.0 -
3311 DA 55 120 24 111.0 100.0 -
3310 DA 50 110 22 93.6 85.0 -
3309 DA 45 100 19 79.3 69.5 -
3308 DA 40 90 18 68.9 64.0 -
3307 DA 35 80 17 50.1 41.1 -
3306 DA 30 72 15 39.3 31.6 -
3305 DA 25 62 12 29.8 23.1 -
3304 DA 20 32 11 24.3 17.5 -
3318 DMA 90 190 36 225.0 250.0 -
3317 DMA 85 180 36 198.5 205.4 -
3316 DMA 80 170 34 190.0 196.0 -
3315 DMA 75 160 34 174.2 165.4 -
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Dentail
  • Structural Features: This type of bearing features two inner rings. Two rows of steel balls are arranged at a certain angle between the two inner rings and the same outer ring. Generally, the contact angle ranges from 15° to 40°, with common values being 25° and 30°. The unique design of the two inner rings enables the bearing to withstand axial loads in both directions and relatively large radial loads, while maintaining high rigidity and precision.
  • Materials and Manufacturing Processes: High-quality bearing steel, such as GCr15, is typically used. It is manufactured through multiple precision processing procedures, including forging, heat treatment, and grinding. Advanced manufacturing techniques ensure the dimensional accuracy and surface quality of the bearing, allowing it to operate stably under high-speed and high-precision working conditions.
Application
The bearings can be used in the following industries
  • Machine Tool Industry: It is often used in machine tool spindles. It can bear the radial and axial forces generated during the cutting process of the spindle, ensuring the rotational accuracy and stability of the spindle, thus improving the accuracy and surface quality of the machined parts.
  • Industrial Robots: At the joints of industrial robots, the double row angular contact bearing with two inner rings can withstand complex loads, including radial forces, axial forces, and overturning moments. It provides reliable support for the precise movement of the robot, ensuring the accuracy and repeatability of the robot's actions.
  • Aerospace: It is applied in some key parts of aircraft engines, such as the supporting structures of the compressor rotor and turbine rotor. It can work reliably under high-temperature, high-speed, and high-load conditions, ensuring the performance and reliability of the engine.
  • Precision Instruments: In precision measuring instruments such as coordinate measuring machines and optical projectors, high-precision bearings are required to ensure measurement accuracy. The double row angular contact bearing with two inner rings can provide stable support, reduce measurement errors, and improve the measurement accuracy and reliability of the instruments.
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