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Current Location : HomeProductsGemstone-bearingsCustom Single Oil Groove Arc-Hole Ruby Bearing
  • Custom Single Oil Groove Arc-Hole Ruby Bearing
  • Custom Single Oil Groove Arc-Hole Ruby Bearing
  • Custom Single Oil Groove Arc-Hole Ruby Bearing
  • Custom Single Oil Groove Arc-Hole Ruby Bearing
  • Custom Single Oil Groove Arc-Hole Ruby Bearing
Custom Single Oil Groove Arc-Hole Ruby Bearing

The TAOMSUN custom single oil groove arc-hole ruby bearing is made from synthetic corundum ruby (Al₂O₃) with Mohs hardness 9. It offers excellent wear resistance, Ra 0.01μm surface finish, and low friction (≈0.14 against steel, dry). The single oil groove stores lubricant to reduce friction, while the arc-hole structure ensures stable, precise positioning. Applications include analytical balances, spectrophotometers, servo motors, CNC spindles, and medical devices. Custom dimensions, tolerances, and geometry are available per drawing. Prototype orders welcome.

Product Details
                                       Custom single oil groove arc-hole ruby bearing
TAOMSUNLaboratory Analytical Instruments
🌏 Made in China · Korea Sales / Technical Support · OEM / ODM Available

Custom Single Oil Groove Arc-Hole Ruby Bearing – Synthetic Corundum Jewel Bearing for Precision Instruments

Material: Synthetic Ruby (Corundum / Al₂O₃) | Mohs Hardness: 9 | Origin: China | Korea Sales / Technical Support: METICULAB (Korea) | Customization: Dimensions, tolerances & oil groove per drawing | Prototype Welcome

The TAOMSUN custom single oil groove arc-hole ruby bearing is a precision support component made from synthetic corundum ruby (Al₂O₃), engineered for instrument and automation applications that require long-term accuracy and wear resistance. With a Mohs hardness of 9 — second only to diamond — the bearing offers excellent abrasion resistance and impact strength. Its high elastic modulus, surface roughness down to 0.01μm, and low friction coefficient (approximately 0.14 against metal) make it an ideal choice for precision support in high-frequency, low-displacement operation.

Customization scope: We manufacture ruby bearings to your drawings — including inner/outer diameter, thickness, tolerance grade, oil groove dimensions, arc-hole geometry, and surface finish. Prototype orders are welcome. Send us your drawing or specification, and our engineering team will confirm feasibility and lead time.

🔍 Structure: The single oil groove stores lubricant to reduce friction loss and extend service life. The arc-hole structure improves overall stability, maintaining precise positioning during high-frequency, low-displacement operation. High temperature resistance, high mechanical strength, and excellent environmental durability ensure reliable performance under demanding conditions.

📷 Product Gallery

Bearing overview

Bearing overview

Arc-hole structure

Arc-hole structure

Oil groove design

Oil groove design

Dimension drawing

Dimension drawing

📋 Technical Specifications

Product NameCustom Single Oil Groove Arc-Hole Ruby Bearing
BrandTAOMSUN (Overseas partner: METICULAB)
OriginChina
Korea Sales / Technical SupportMETICULAB (Korea)
MaterialSynthetic ruby (corundum, Al₂O₃)
Mohs Hardness9 (second only to diamond)
Surface RoughnessDown to 0.01μm
Friction CoefficientApprox. 0.14 (against metal)
Elastic ModulusHigh (synthetic corundum)
StructureSingle oil groove + arc hole
Temperature ResistanceHigh temperature resistant (synthetic corundum)
Dimensions (ID / OD / Thickness)Customized per drawing
ToleranceCustomized per drawing
Oil Groove SpecCustomized per drawing
Arc Hole SpecCustomized per drawing
Surface FinishCustomized (down to 0.01μm)
MOQNegotiable, prototype welcome
Lead Time15-30 days after drawing confirmation
CustomizationOEM/ODM per customer drawing or specification
Quality SystemISO 9001 certified manufacturing

⭐ Key Features

✅ Mohs 9 hardness – Excellent wear and impact resistance, second only to diamond
✅ Low friction coefficient (≈0.14) – Reduces energy loss and heat generation
✅ Surface roughness down to 0.01μm – Ensures smooth, stable rotation
✅ Single oil groove design – Stores lubricant, reduces friction, extends service life
✅ Arc-hole structure – Improves stability and precise positioning
✅ High temperature resistance – Suitable for demanding thermal environments
✅ High elastic modulus – Maintains shape and precision under load
✅ High mechanical strength – Reliable under high-frequency operation
✅ Corrosion and chemical resistance – Synthetic corundum is chemically stable
✅ Custom dimensions & tolerances – Manufactured per customer drawing
✅ Prototype orders welcome – Low MOQ, negotiable
✅ ISO 9001 certified manufacturing – Consistent quality control

🎯 Typical Applications

Analytical BalancesSpectrophotometersPrecision InstrumentsServo MotorsCNC Machine Tool SpindlesIndustrial AutomationMedical DevicesAerospace InstrumentsWatch MovementsMetrology Equipment

❓ Frequently Asked Questions (FAQ)

Q: Can you manufacture ruby bearings to our drawing?
A: Yes. We manufacture to customer drawings, including dimensions, tolerances, oil groove, and arc-hole geometry. Send us your drawing or specification for evaluation.

Q: What material is the bearing made of?
A: Synthetic ruby (corundum, Al₂O₃) with Mohs hardness 9.

Q: What is the minimum order quantity?
A: MOQ is negotiable. Prototype and small-batch orders are welcome.

Q: What is the lead time?
A: Typically 15-30 days after drawing confirmation, depending on quantity and specifications.

Q: What is the function of the single oil groove?
A: It stores lubricant to reduce friction loss during operation and extends bearing service life.

Q: What is the arc-hole structure for?
A: The arc-hole design improves structural stability and maintains precise positioning during high-frequency, low-displacement operation.

Q: Can you provide samples before mass production?
A: Yes. Prototype and sample orders are available for evaluation before mass production.

🏭 About TAOMSUN

TAOMSUN is a laboratory analytical instrument supplier integrating R&D, production, and sales. Our production processes are certified under the ISO 9001 quality management system, with product lines covering spectrophotometers, spectral analysis instruments, precision components, and supporting consumables. Core components are manufactured and assembled with precision processes to ensure accuracy and reliability. Products are widely used in chemical, pharmaceutical, environmental, food, and university research fields.

🌏 Overseas sales and technical support is provided by METICULAB™ (Korea).
TAOMSUN
Laboratory Analytical Instruments
📧 Sales Inquiry
taomsun@vip.163.com
+86-13862625813
🌏 Overseas Sales / Technical Support
METICULAB™ (Korea)
choikyuc@gmail.com
+82-10-3988-4813
💬 WhatsApp / KakaoTalk

All TAOMSUN products are manufactured under ISO 9001. Custom specifications are manufactured per customer drawing; standard specifications as listed. For OEM/ODM customization, contact our sales team. Overseas customers may reach METICULAB (Korea) for Korean/English technical consultation.

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Contact us
  • Add: Building A, Renheng PARK, 1211 Xinghu Street, Suzhou Industrial Park
  • TEL: 13862625813
  • E-mail: taomsun@vip.163.com

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