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Home / Double Row Angular Contact Ball Bearing / Double Row Angular Contact Bearing With U-shaped Holder

Double Row Angular Contact Bearing With U-shaped Holder

Double Row Angular Contact Bearing With U-shaped Holder The overall manufacturing accuracy of the bearings reaches P4 level (GB/T 307.1), with the radial runout strictly controlled below 3μm, guaranteeing high-precision operation of the equipment, especially suitable for precision instruments and automated equipment with stringent accuracy requirements.

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Double Row Angular Contact Bearing With U-shaped Holder
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TOP PRODUCT TYPES DENTAIL APPLICATION RELATED PRODUCTS
Double Row Angular Contact Bearing With U-shaped Holder
  Type Main dimensions Rated load Rated speed
      Dynamics Static Speed limit
Mail   d[mm] D[mm] B[mm] C[kN] C0[kN] [r/min]
3210 RSU 50 90 30 54.2 52.9 -
3209 RSU 45 85 30 54.7 52.2 -
3208 RSU 40 80 30 50.4 44.8 -
3207 RSU 35 72 27 38.1 33.1 -
3206 RSU 30 62 23 32.7 27.4 -
3205 RSU 25 32 20 22.7 18.5 -
3204 RSU 20 47 20 20.6 15.1 -
3203 RSU 17 40 17 12.8 7.9 -
3313 ZU 65 140 58 154.3 150.5 -
3312 ZU 60 130 54 123.5 119.4 -
3311 ZU 55 120 49 114.2 108.0 -
3310 ZU 50 110 44 103.3 90.1 -
3309 ZU 45 100 39 87.0 74.4 -
3308 ZU 40 90 36 72.0 60.3 -
3307 ZU 35 80 34 58.2 47.5 -
3306 ZU 30 72 30 45.8 36.5 -
3305 ZU 25 62 25 27.5 22.8 -
3304 ZU 20 32 22 20.6 15.5 -
3303 ZU 17 47 22 20.6 15.0 -
3215 ZU 75 130 41 100.5 111.2 -
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Dentail

Unique Design Highlights

  1. Innovative U-shaped Holder
    • Featuring a distinct U-shaped cross-section design, compared to traditional retainers, it enables smoother ball guidance, effectively reducing the frictional resistance between the balls and the holder by approximately 30%, with a friction coefficient as low as 0.06 - 0.1.
    • Made of high-performance engineering plastics, it exhibits excellent self-lubricating properties, extending the operating temperature range to -50°C to +180°C, capable of adapting to various complex working conditions. Meanwhile, its weight is about 40% lighter than that of metal retainers, facilitating high-speed operation.
  2. Optimized Dual Row Angular Contact Structure
    • With an axial load capacity of up to 20kN, enabling stable operation even under significant axial forces, meeting the requirements of equipment such as machine tool spindles.
    • Employing back-to-back (DB) or face-to-face (DF) pairing installation methods, it enhances system rigidity, effectively resists overturning moments, and improves the reliability of the equipment under heavy loads and high-speed operation.
Application
The bearings can be used in the following industries
  1. Machine Tool Industry: As a crucial supporting component for the spindles of various machine tools (such as machining centers, lathes, milling machines), it ensures machining accuracy and efficient cutting, facilitating the manufacturing of precision parts.
  2. Industrial Automation: Widely used in the joints of robotic arms and high-speed transmission devices in automated production lines, it ensures precise motion execution and stable power transmission, enhancing production efficiency.
  3. Aerospace: Meeting the stringent requirements of aircraft engines, navigation equipment, etc. for the high precision, high reliability, and extreme environment resistance of bearings, ensuring flight safety and the normal operation of equipment.
  4. High-End Medical Equipment: For example, the rotating parts of CT scanners and magnetic resonance imaging equipment.
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Contact:

+86-379-64152635

+86-13721614625

sale@lkwebearing.com

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