Precision Angular Contact Ball Bearings

1.Product Introduction: The raceways are processed by ultra-precision grinding, with radial runout ≤ 0.002mm, suitable for high-speed and high-precision transmission, and are mostly used in the core spindles of high-end equipment.
2.Structure Type: Inner ring / outer ring (ultra-precision ground angular contact raceway, Ra ≤ 0.02μm) + precision steel balls + aerospace aluminum alloy or brass cage, and some are equipped with positioning steps.
3.Size Range: Inner diameter: 20 - 300mm, outer diameter: 47 - 500mm, width: 14 - 100mm.
4.Material: Inner ring / outer ring: GCr15 (ultra-precision forged), rolling elements (steel balls): GCr15 (ultra-precision ground), cage: aerospace aluminum alloy (for high-speed) / brass (for precision).
5.Accuracy: Conventional P0 grade, precision models are of P6/P5/P4 grades.
6.Application Fields: Spindles of CNC lathes, machining centers, aerospace equipment, precision testing instruments, semiconductor manufacturing equipment.
7.Key Inspection Items: Radial runout (≤ 0.002mm), running noise (≤ 40dB), accuracy of contact angle, surface roughness of the raceway.

Product Description

Precision Angular Contact Ball Bearings Built for Demanding Industries

When your machinery faces extreme heat, heavy shock loads, or non-stop operation, precision angular contact ball bearings deliver unmatched stability. Designed for metallurgical, medical, and automation sectors, our bearings combine ISO-certified precision with industry-leading durability to keep critical industrial applications running smoothly.

Precision Angular Contact Ball Bearings Built for Demanding Industries

When your machinery faces extreme heat, heavy shock loads, or non-stop operation, precision angular contact ball bearings deliver unmatched stability. Designed for metallurgical, medical, and automation sectors, our bearings combine ISO-certified precision with industry-leading durability to keep critical industrial applications running smoothly.

Where Our Bearings Excel

  • Rolling Mill Gearboxes: Impact-resistant precision angular contact ball bearings handle dynamic loads up to 250kN in continuous casting.
  • Medical Imaging Equipment: P4-grade precision ball bearings ensure quiet, low-runout operation for medical scanner systems.
  • Robotic Assembly Lines: Low-friction angular contact bearings enable high-speed 15,000 RPM operation and low maintenance.

Quality Assurance & Customization

Every bearing undergoes spectrographic steel purity testing, 500-hour continuous load validation, and 12-parameter inspections. We offer 7-day rapid prototyping and 15–20 day bulk production for custom large-scale angular contact ball bearings.

FAQs

Q: How do your precision angular contact ball bearings maintain precision at 500°C?
A: Our proprietary heat treatment stabilizes microstructure, while aerospace-grade cages prevent thermal expansion mismatch in severe bearing environments.

Q: Can you make angular contact bearings over 3000mm OD?
A: Yes! We deliver large custom ball bearings up to φ3200mm+ in 15–22 days for heavy rolling mills.

Q: What certifications apply to your precision bearings?
A: ISO 9001, IATF 16949, API 613, and EN 10204-3.1 material compliance for all high-precision ball bearings.

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