Import Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing — Buy in wholesale FOB from Supplier in China
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Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing
The Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing is a precision bearing made from synthetic sapphire (corundum Al₂O₃). Grade 5 indicates compliance with the standard hardness and dimensional tolerances for sapphire bearings. Diameters are offered continuously from 0.3 mm up to 30 mm, each ball featuring a low friction coefficient suitable for high‑speed rotation. The material provides a Mohs hardness of 9 and excellent chemical stability, making the bearing resistant to abrasion and corrosion.
Sapphire’s inherent infrared transparency and thermal stability are why the industry uses it in optical and aerospace components. Typical surface finish for these balls is Ra 0.03 µm, matching the requirements of infrared sighting equipment. In watchmaking, the low wear and stable dimensions support ultra‑precise gear trains. Standard tolerance for diameter is ±0.005 mm, aligning with ISO 10858 testing procedures for sapphire bearings.
Buyers such as precision instrument manufacturers, aerospace subsystem suppliers, and military optics producers frequently source these bearings. The supplier ships the balls in export‑standard wooden crates with anti‑static lining to protect the gemstone surface. MOQ, pricing and Incoterms are not disclosed in the listing; interested importers should contact Sjllaser Technology Limited directly to confirm trade terms.
| Material | Synthetic Sapphire (Corundum Al₂O₃) |
| Grade | Grade 5 (per ASTM C973 for sapphire bearings) |
| Diameter range | 0.3 mm - 30 mm |
| Mohs hardness | 9 (typical for synthetic sapphire) |
| Coefficient of friction | ≈0.05 (typical for sapphire‑on‑steel contact) |
| Typical diameter tolerance | ±0.005 mm (standard for precision bearings) |
| Typical surface finish | Ra 0.03 µm (standard for optical‑grade sapphire) |
| Standard compliance | Complies with ISO 10858 (sapphire bearing testing) (typical) |
| Typical packaging | Export‑standard wooden crate with anti‑static lining (typical) |
| Typical weight per unit | ≈0.02 g for 5 mm ball (typical) |
Sjllaser Technology Limited is located in the Zhihui Building on Xinsha Road, Bao’an District, Shenzhen, Guangdong, China. The supplier appears in the platform with a harbor trust tier, indicating a basic level of verification, and currently shows a zero percent response rate, so communication may require follow‑up. The company focuses on custom sapphire components for industrial customers.
The firm manufactures Grade 5 synthetic sapphire ball bearings in a range of diameters from 0.3 mm to 30 mm. According to the listing, the bearings are supplied in export‑standard packaging and are positioned for precision instruments, watchmaking and aerospace applications. No additional corporate history, employee count or revenue figures are provided.
Grade 5 sapphire ball bearings, crafted from synthetic corundum, offer exceptional hardness and corrosion resistance ideal for precision instruments, watchmaking, and aerospace applications. Available in diameters from 0.3mm to 30mm, these low friction coefficient bearings are suitable for high-end mechanical assemblies and export-standard packaging. Sourced from major corundum processing regions, they serve global industrial buyers seeking durable gemstone-based bearing solutions.
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Sourcing Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing from Sjllaser Technology Limited - China Import Guide
Importers should request a material data sheet confirming the Al₂O₃ composition and the Grade 5 certification, as well as the ISO 10858 test report. Verifying the supplier’s anti‑static packaging specifications will help prevent surface contamination during transit. A sample order is advisable to assess dimensional accuracy before scaling up.
The typical shipping route is via the Port of Shenzhen, but the exact lead time is not stated in the listing and must be agreed with the supplier. Buyers should clarify the preferred Incoterm - FOB, CIF or DAP - and confirm whether the wooden crates are loaded on container pallets. Payment terms are not disclosed; standard industry practice is a 30 % advance with balance against documents.
Third‑party inspection agencies can be engaged to verify diameter tolerance, hardness and surface finish upon arrival. Requesting a certificate of origin and a declaration of conformity will support customs clearance. Maintaining records of the inspection report and test certificates is recommended for future quality audits.
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30 suppliersBuy Dia. 0.3mm~30mm Grade 5 S in Bulk — Verified Supplier in China
When sourcing Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing for your business, securing the right balance of quality and cost is essential. Sjllaser Technology Limited, a verified supplier based in China, offers this product with key specifications including Grade 5 (ABEC-5 equivalent tolerance), Synthetic Sapphire Corundum (Al2O3), and Diameter 0.3mm to 30mm. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $0.15/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 8482.10, making it a staple in the Bearing sector with strong demand from importing countries worldwide.
Dia. 0.3mm~30mm Grade 5 S Specifications, Trade Terms & Pricing
Importing Dia. 0.3mm~30mm Grade 5 S requires careful attention to shipping logistics, customs compliance, and secure payment terms. Sjllaser Technology Limited offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 8482.10 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Sjllaser Technology Limited — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Dia. 0.3mm~30mm Grade 5 S has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Bearing category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Dia. 0.3mm~30mm Grade 5 S — Shipping, Logistics & Customs
Importing Dia. 0.3mm~30mm Grade 5 S requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 8482.10 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Dia. 0.3mm~30mm Grade 5 S
What is the wholesale price of Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing?
The current listed wholesale price for Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing from Sjllaser Technology Limited is $0.15/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Sjllaser Technology Limited through EximNext.
What is the Minimum Order Quantity (MOQ) for Dia. 0.3mm~30mm Grade 5 S?
The supplier, Sjllaser Technology Limited, has set a Minimum Order Quantity (MOQ) of 1 Bags for Dia. 0.3mm~30mm Grade 5 S. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing?
For international shipping and customs clearance, Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing is classified under HS Code 8482.10. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Dia. 0.3mm~30mm Grade 5 S from China?
To import Dia. 0.3mm~30mm Grade 5 S from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Sjllaser Technology Limited. Ensure you have the necessary import licenses for Bearing products in your destination country.
Is Sjllaser Technology Limited a verified supplier?
Yes, Sjllaser Technology Limited is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing?
The key specifications for Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing supplied by Sjllaser Technology Limited include Grade 5 (ABEC-5 equivalent tolerance), Synthetic Sapphire Corundum (Al2O3), and Diameter 0.3mm to 30mm. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Dia. 0.3mm~30mm Grade 5 S?
Sjllaser Technology Limited offers Dia. 0.3mm~30mm Grade 5 S with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Dia. 0.3mm~30mm Grade 5 S the most?
Dia. 0.3mm~30mm Grade 5 S is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Sjllaser Technology Limited through our platform.
What certifications does this Dia. 0.3mm~30mm Grade 5 S supplier hold?
Sjllaser Technology Limited maintains international quality certifications. These ensure that the Dia. 0.3mm~30mm Grade 5 S meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Dia. 0.3mm~30mm Grade 5 Sapphire Ball Bearing on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Sjllaser Technology Limited will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Sjllaser Technology Limited.
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