Designed as the key component for efficient machine tool operation, our High Precision machine tool bearings are specially engineered for Heavy Load industrial applications. Crafted from aerospace-grade high-purity bearing steel, combined with vacuum quenching heat treatment and nanometer-precision grinding technology, these bearings feature superior wear resistance, fatigue resistance, and ±0.001mm-level operational accuracy, maintaining excellent performance under 15,000 RPM high-speed rotation, 30-ton axial load, and complex multi-directional vibration conditions.
The bearing structure is deeply adapted to international mainstream machine tool architectures, seamlessly compatible with lathes, milling machines, five-axis machining centers, and other equipment. Widely used in aerospace component processing, precision gear manufacturing, and new energy vehicle core component production, their micron-level geometric precision control and 0.002-low friction coefficient reduce equipment energy consumption by 15% and improve processing efficiency by 20%, significantly optimizing workpiece surface roughness to below Ra0.8.
From raw material spectral analysis to finished product dynamic balance testing, the entire process adheres to the ISO/TS 16949 quality management system, with products certified under IATF 16949. Currently exported in bulk to North America, Western Europe, and Southeast Asia, with a cumulative installation base exceeding 500,000 units, they have become the trusted choice for global precision manufacturing enterprises.
Technical Parameters
| 1. Basic Parameters | ||
|
Item |
Technical Index |
International Standard |
|
Model |
BC Series (BC-20/BC-30/BC-50 etc.) |
ISO 15 (Bearing Nomenclature) |
|
Bore Diameter |
10-200mm / Outside Diameter: 30-300mm |
ISO 492 (Bearing Dimensions) |
|
Width |
15-80mm |
ISO 1531 (Bearing Width Series) |
|
Design Type |
Deep Groove Ball/Angular Contact/Tapered Roller |
ISO 15 (Bearing Types) |
| 2. Material & Heat Treatment Standards | ||
|
Category |
Technical Index |
International Standard |
|
Bearing Steel |
AISI 52100 (ISO 683-17 Grade 1 equivalent) / SUJ2 (JIS G4805) |
- |
|
Purity |
Non-metallic inclusions ≤ ISO 4967 Class 1Carbide distribution ≥ ASTM E112-13 Class 2 |
- |
|
Quenching Process |
Vacuum Carburizing Quenching (AMS 2759/6)Hardness: HRC 60-62 (ISO 6508-1) |
- |
|
Stability Treatment |
-70℃ Cryogenic Treatment (SAE J2438)Dimensional stability ≤±0.0005mm/100℃ |
- |
| 3. Precision Parameters | ||
|
Item |
Technical Index |
International Standard |
|
Dimensional Accuracy |
ISO Tolerance Class P4 (GB/T 307.1 ≡ ISO 492) |
ISO 492 |
|
Radial Runout |
≤8μm (ISO 492 P4 Class) |
ISO 492 |
|
Axial Runout |
≤12μm |
- |
|
Surface Roughness |
Raceway: Ra≤0.2μm (ISO 1302)Rolling Element: Ra≤0.1μm |
ISO 1302 |
| 4. Load & Speed Capacity | ||
|
Item |
Technical Index |
International Standard |
|
Basic Dynamic Load (C) |
15-200kN (Radial) / 8-100kN (Axial) |
ISO 281 (Dynamic Load Rating) |
|
Basic Static Load (C₀) |
12-180kN (Radial) / 10-150kN (Axial) |
ISO 76 (Static Load Safety Factor) |
|
Limiting Speed |
8000-20000rpm (Grease Lubrication) |
ISO 281 (Speed-Load Relationship) |
| 5. Operational Performance | ||
|
Item |
Technical Index |
International Standard |
|
Friction Coefficient |
≤0.003 (High-speed, ISO 281 Test Method) |
ISO 281 |
|
Temperature Range |
-40℃~+150℃ (Standard)Optional: -70℃~+200℃ (Special Coating) |
- |
|
L10 Life |
≥10,000 Hours (Rated Load) |
ISO 281 |
| 6. Environmental Parameters | ||
|
Item |
Technical Index |
International Standard |
|
Protection Class |
IP65 (Dust/Water Protection) |
IEC 60529 |
|
Cleanliness Level |
Compliant with ISO 4406-1999 16/14 |
ISO 4406 |
|
Certifications |
IATF 16949 (Automotive), ISO 9001, ISO 14001 |
- |
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