Precision Grooved Ruby / Sapphire Bearings – High Hardness, Ultra-Low Friction, Micron-Level Precision

Our grooved ruby and sapphire bearings are precision-engineered from high-purity synthetic corundum, delivering unmatched performance in the most demanding applications.

🔧 Key Features

Exceptional Hardness

• 9 Mohs hardness, second only to diamond, for extreme wear resistance and long service life

Ultra-Low Friction

• The precision-machined cup/groove design minimizes contact area, reducing friction and energy consumption

Superior Stability

• Resistant to corrosion, high temperatures, and chemical attack, ensuring reliable operation in harsh environments

Micron-Level Precision

• Tight dimensional tolerances and ultra-smooth surface finishes guarantee consistent, accurate performance

📋 Specifications

🔬 Typical Applications

• Precision meters (electricity, water, gas)
• Aerospace and navigation instruments
• High-end timepieces and chronographs
• Medical devices and laboratory equipment
• Industrial sensors and actuators

⚙️ Customization

We offer a full range of standard sizes and can also provide custom solutions to meet your specific requirements. All custom components are manufactured according to customer drawings or specifications. Contact us today to discuss your project needs.

❓ Frequently Asked Questions

Q: What is the minimum order quantity (MOQ) for custom bearings?
A: For prototypes, MOQ can be as low as 5–10 pieces depending on complexity. Production MOQs vary by part size and material. Contact us with your requirements for a specific quotation.

Q: What is the typical lead time for prototypes?
A: Prototype samples typically ship within 2-4 weeks from drawing approval, depending on complexity and material availability.

Q: Where do you ship from?
A: We ship from our logistics center in Asia via DHL/FedEx/UPS. Delivery to most countries takes 2-4 business days after dispatch. Tracking information will be provided once your order ships.

Q: What is the advantage of ruby/sapphire bearings over metal bearings?
A: Ruby and sapphire bearings offer exceptional hardness (Mohs 9), ultra-low friction, and excellent corrosion resistance, resulting in longer service life and maintenance-free operation in demanding environments.

Q: Do you offer design assistance?
A: Yes, our engineering team can help optimize your design for manufacturability (DFM) to meet your exact requirements.

Q: What file formats do you accept?
A: We accept PDF, STEP, DXF, and most common CAD file formats. Solid models are preferred for complex geometries.