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Metric A-type Thin-wall Angular Contact Ball Bearings

Metric A-type Thin-wall Angular Contact Ball Bearings, featuring 0.6-1.2mm ultra-thin rings for 52% weight reduction, support 15°, 25° contact angles with axial load capacity ranging from 4.2kN to 16.8kN.these bearings are ideal for high-accuracy applications in semiconductor, medical, and other advanced industries.

Metric A-type Thin-wall Angular Contact Ball Bearings
Metric A-type Thin-wall Angular Contact Ball Bearings
  Type Main dimensions Rated load Rated speed
      Dynamics Static Speed limit
Mail   d[mm] D[mm] B[mm] C[kN] C0[kN] [r/min]
LK07013AR0 70 96 13 860.0 1456.0 -
LK06013AR0 60 86 13 782.0 1232.0 -
LK05013AR0 50 76 13 725.0 1064.0 -
LK02513AR0 25 51 13 554.0 616.0 -
LK36008AR0 360 376 8 1110.0 4264.0 -
LK34008AR0 340 356 8 1073.0 4023.0 -
LK32008AR0 320 336 8 1039.0 3805.0 -
LK30008AR0 300 316 8 999.0 3564.0 -
LK25008AR0 250 266 8 897.0 2974.0 -
LK20008AR0 200 216 8 791.0 2405.0 -
LK19008AR0 190 206 8 769.0 2296.0 -
LK18008AR0 180 196 8 742.0 2165.0 -
LK17008AR0 170 186 8 720.0 2055.0 -
LK16008AR0 160 176 8 696.0 1946.0 -
LK15008AR0 150 166 8 667.0 1815.0 -
LK14008AR0 140 156 8 643.0 1706.0 -
LK13008AR0 130 146 8 618.0 1596.0 -
LK12008AR0 120 136 8 587.0 1465.0 -
LK11008AR0 110 126 8 561.0 1356.0 -
LK10008AR0 100 116 8 533.0 1246.0 -
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Key Technological Advancements

  1. Ultra-thin Ring Manufacturing
    • 0.6-1.2mm wall thickness (diameter ratio <0.025) reduces weight by 52% vs. traditional bearings
    • CNC precision grinding ensures raceway surface roughness Ra≤0.1μm
  2. Modular Contact Angle System
    • Standard angles α=15°/25°/40° available, axial load capacity C_a=4.2-16.8kN
    • Optimized stress distribution extends contact fatigue life by 40% under P_r=12kN
  3. Metric Precision Standard
    • Full compliance with ISO 492:2018 (bore d=12-80mm, OD D=28-120mm)
    • P5-class rotational accuracy (GB/T 307.1) with radial runout ≤3μm
Application
The bearings can be used in the following industries
  • Semiconductor: Lithography lens supports (radial runout ≤0.5μm)
  • Medical Imaging: MRI gradient coil rotors (30,000+ hours service life)
  • Precision Drives: High-speed centrifuge spindles (45,000rpm operation)
  • Aerospace: Micro-turbine engine bearings (-60℃~+180℃ temperature range)
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