VL2071 Deep Groove Ball Insulated
Insulation Resistance: >200 MΩ (1000 VDC)
Voltage Rating: Up to 2000V DC
Material: Bearing Steel (Gcr15) + Al2O3 Coating
Precision: P0, P6, P5
Structure: Open / Shielded / Sealed
Bore Range: 25mm – 150mm
Application: High-voltage traction motors, power generation equipment, large VFD motors
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VL2071 insulated deep groove ball bearings offer enhanced insulation with resistance exceeding 200 MΩ at 1000 VDC, rated for voltages up to 2000V DC. The thicker ceramic coating provides superior protection against electrical pitting and fluting damage in high-voltage motor applications. Commonly specified for main traction motors in electric locomotives, high-power wind generators, and heavy-duty industrial drives.
Technical Specifications
| Bearing No. | Bore (d) mm | Outer Dia. (D) mm | Width (B) mm | Dyn. Load Cr (kN) | Stat. Load Cor (kN) | Ref. Speed (rpm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| 6300 | 10 | 35 | 11 | 8.20 | 3.50 | 22000 | 0.055 |
| 6301 | 12 | 37 | 12 | 9.70 | 4.20 | 20000 | 0.062 |
| 6302 | 15 | 42 | 13 | 11.40 | 5.45 | 18000 | 0.085 |
| 6303 | 17 | 47 | 14 | 13.50 | 6.55 | 16000 | 0.120 |
| 6304 | 20 | 52 | 15 | 15.90 | 7.90 | 14000 | 0.150 |
| 6305 | 25 | 62 | 17 | 22.50 | 11.60 | 11000 | 0.241 |
| 6306 | 30 | 72 | 19 | 28.10 | 16.00 | 9500 | 0.369 |
| 6307 | 35 | 80 | 21 | 33.20 | 19.00 | 8500 | 0.476 |
| 6308 | 40 | 90 | 23 | 40.50 | 24.00 | 7500 | 0.655 |
| 6309 | 45 | 100 | 25 | 52.70 | 31.50 | 6700 | 0.866 |
| 6310 | 50 | 110 | 27 | 62.00 | 38.50 | 6000 | 1.123 |
| 6311 | 55 | 120 | 29 | 71.50 | 45.00 | 5600 | 1.435 |
| 6312 | 60 | 130 | 31 | 81.50 | 52.00 | 5000 | 1.799 |
