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Internal-tooth four-point-contact ball slewing bearing
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Product Details
- Product Description
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- Commodity name: Internal-tooth four-point-contact ball slewing bearing
Applications of internal‑gear four‑point contact ball slewing bearings: Lifting equipment: Used in cranes, tower cranes, stage lighting hoisting systems, and similar devices to support both rotational and lifting functions. Rotating platforms: Employed in rotating stages, exhibition equipment, camera‑support systems, and other applications to ensure smooth rotation.
Application fields of internal-tooth four-point-contact ball slewing bearings:
Lifting equipment: Used for cranes, tower cranes, stage lighting rigging, and other devices to support rotational and lifting functions.
Rotating platform: Used in applications such as rotating stages, exhibition equipment, and photographic gear supports, enabling smooth rotation.
Wind turbines: Used in wind turbines to orient the turbine blades into the wind, maximizing wind energy capture.
Construction machinery: Used in excavators, concrete pump trucks, loaders, and other equipment to support rotational and lifting functions.
In summary, the internal‑gear type four‑point contact ball slewing bearing is a critical mechanical component that offers highly controllable rotational performance and substantial load‑carrying capacity. It is widely employed in large rotating equipment and mechanical systems that demand both high load capacity and freedom of rotation. Its design and operating principles make it well suited to a broad range of engineering and mechanical applications, meeting diverse functional requirements.
Product Specifications
Internal-tooth four-point-contact ball slewing bearing model specifications Corresponding model (INA) Installation dimensions Gear Basic load Weight (kg) Clearance Inner diameter Outer diameter Height Module (m) Number of teeth (z) Ca（KN） C0a (kN) Cr (KN) C0r (KN) Radial Axial VI160288-N 216 340 39 4 56 165 420 108 190 12 0.04-0.16 0.07-0.26 VI140326-V 250 382 59 3.5 73 83 206 78 93 18 0.03-0.08 0.08-0.18 VI160420-N 332 486 39 4 85 93 620 125 275 23 0.04-0.16 0.07-0.26 VSI250755-N 610 855 80 10 63 460 2250 300 1010 119 0.03-0.13 0.05-0.24 VSI250855-N 710 955 80 10 73 485 2550 315 1150 137 0.03-0.13 0.05-0.24 VSI250955-N 810 1055 80 10 83 500 2850 330 1280 149 0.03-0.13 0.05-0.24 VSI251055-N 910 1155 80 10 93 520 3150 340 1410 165 0.03-0.13 0.05-0.24 VSI200414-N 325 486 56 5 67 169 560 111 248 31 VSI200544-N 444 616 56 6 76 188 740 123 325 42 VSI200644-N 546 716 56 6 93 200 880 131 385 50 VSI200744-N 648 816 56 6 110 211 1010 138 445 58 VSI200844-N 736 916 56 8 94 222 1150 145 510 69 VSI200944-N 840 1016 56 8 107 231 1280 151 570 76 VSI201094-N 984 1166 56 8 125 244 1490 160 660 91 VLI200414-N 325 518 56 5 67 169 295 111 110 27.5 VLI200544-N 444 648 56 6 76 188 385 123 145 38 VLI200644-N 546 748 56 6 93 200 455 131 171 45 VLI200744-N 648 848 56 6 110 211 530 138 198 51.5 VLI200844-N 736 948 56 8 94 222 600 145 224 61.5 VLI200944-N 840 1048 56 8 107 231 670 151 250 67.5 VLI201094-N 984 1198 56 8 125 244 770 160 290 81.5
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