High Precision Black Polished Media Silicon Nitride Ceramic Bearing Ball

• Customization: Available
• Color: Black
• Diameter: 1 mm
• Model NO.: HBF-C010
• Material: Silicon Nitride
• Surface Finish: Polished
• Usage: Bearing Ball
• Name: Silicon Nitride Ceramic Ball
• Certification: ISO9001
• Size: Customized
• Sintering Way: GPS/HP/Ssn
• Keyword1: Siliocn Nitride
• Keyword2: Silicon Nitride Ball
• Keyword3: Silicon Carbide Grinding Ball
• Application: Structure Ceramic, Grinding
• Type: Ceramic Balls
• Transport Package: Safe Package, Export Carton with Foam
• Specification: customized
• Trademark: HIGHBORN
• Origin: Lianyungang, Jiangsu
• Production Capacity: 20000PCS/Month
• Package Size: 15.00cm * 15.00cm * 5.00cm
• Package Gross Weight: 0.500kg

Product Description

Product Description

Silicon nitride ball

Professional advanced ceramic manufacturer with many years of Si3N4 production experience, Hybrid ceramic ball bearings, high-speed machine tool spindle bearings New energy vehicle motor bearing, electric vehicle transmission bearing, Aerospace precision instruments, food processing machinery
High-speed rotating equipment, anti-corrosion equipment, insulating bearing components

silicon nitride media

Density 3.20~3.25 g/cm³;

Vickers hardness 1450~1550 HV;

fracture toughness 6.0~7.2 MPa·m¹/²;

elastic modulus 310 GPa;

thermal expansion coefficient 2.8×10-6 /K;

volume resistivity >10 14 Ω·cm;

long-term use temperature in air ≤800℃;

accuracy grade G3/G5/G10/G16; size range 0.8mm–50mm, 

Key Advantages

Much lighter than steel balls, producing less centrifugal force at high speeds;

tougher than alumina ceramic balls, resistant to impact and less prone to chipping;

corrosion-resistant against acids, alkalis, and salts; excellent insulation to prevent electrical corrosion in bearings;

low friction coefficient with self-lubricating properties, suitable for low-oil or dry friction conditions.

Silicon nitride bearing ball

Q1: Are silicon nitride balls insulating?

A: Yes. Silicon nitride ceramic is excellent insulator, widely used to solve bearing electric corrosion problem for new energy motors.

Q2: Can silicon nitride balls be used in hybrid bearings with steel rings?
A: Absolutely. Si3N4 ball is the mainstream material for hybrid ceramic bearings used in EV motors and high-speed spindles.

**Applications**
Hybrid ceramic bearings, high-speed spindle bearings for machine tools, new energy motor bearings, chemical pump and valve sealing balls, marine equipment, precision aerospace instruments, food machinery, and insulated bearing components.

Technical Specifications

(The above data is only for your reference.)

Item	gas pressure sintering	hot pressing sintering	reactive sintering	pressureless sintering
Rockwell hardness (HRA)	≥75	-	>80	91-92
Volume density(g/cm3)	3.25	>3.25	1.8-2.7	3.0-3.2
Dielectric constant (εr20℃,1MHZ)	-	8.0(1MHz)	-	-
electric volume resistivity (Ω.cm)	1014	108	-	-
breaking tenacity (Mpa m1/2)	6-9	6-8	2.8	5-6
Elasticity modulus(GPa)	300-320	300-320	160-200	290-320
thermal expansivity (m/K*10-6/℃)	3.1-3.3	3.4	2.53	600
thermal conductivity (W/MK)	15-20	34	15	-
weibull modulus (m)	12-15	15-20	15-20	10-18

You May Like

Strict Quality System & Digital Certification

Strict Full-process QC & Complete Verified Certifications

We adopt standardized ISO 9001:2015 and IATF 16949 quality management systems with full-process inspection from raw materials incoming, production processing to finished product delivery. We have obtained a full range of international certifications including RoHS, CE, EMC, LVD, FDA, MSDS, SGS and TUV, and own 8 registered trademarks and 40 technical patents as our core intellectual property.

ISO9001:2015 Quality Management System

CE Certification — European Safety Standard

RoHS Certification — EU Restriction of Hazardous Substances Standard

Period of validity:
from2024.10.17 to 2027.10.25
Full-process standardized production quality control system.

Certificate No. CTA-01-2005-008
 (Original certificate available)
Complies with EU mandatory safety, health and environmental protection standards.

Certificate No. LTR20260427010
Date:MAY .08.2026

Packaging & Shipping

Reliable Fragile Product Packaging & Comprehensive Shipping Protection

Targeting the fragile, high-precision characteristics of industrial ceramic and quartz products, we adopt standardized export-grade shockproof packaging and professional global transportation solutions. Finished products go through independent wrapping, anti-collision foam filling and thickened carton or wooden box reinforcement, greatly reducing the risk of breakage, scratch and deformation during transit. We support customized brand packaging, exclusive shipping marks and standardized export packaging standards, and adapt to multiple transportation modes including sea freight, air freight and international express. With mature logistics docking experience and full-link cargo protection measures, we aim to improve the safety and integrity of product delivery for global industrial customers.

R&D Strength & Mature Project Experience

Independent R&D Innovation + Verified Similar Overseas Project Cases

We have independent professional R&D teams and laboratories capable of continuous innovation, structural optimization and process improvement, to develop customized products tailored to international market needs. Our products are exported to more than 130 countries, and we have established cooperative partnerships with over 100 well-known domestic and foreign universities. We have also maintained successful cooperation with Fortune 500 enterprises.
We boast extensive overseas project experience and have long provided services to worldwide clients covering similar target markets, customer groups and product specifications. Our well-established, replicable project cases comply with major international standards.

Stable Capacity & Fair Pricing

Sufficient & Stable Output Capacity + Standardized              Market-oriented Quotation

Equipped with modern standardized workshops and automatic production equipment, we maintain stable daily, monthly and annual output, capable of handling large-batch, continuous and urgent global orders. We offer transparent, standardized and efficient quotations aligned with prevailing average global market prices. Factory direct sales deliver favorable cost performance with regulated pricing, facilitating long-term stable cooperation on bulk orders.

Full-Cycle Service & Long-Term Trusted Partner

One-stop Full-lifecycle Export Service + Sustainable & Stable Enterprise Operation

As an established, stable export manufacturer with comprehensive enterprise qualifications and worldwide market recognition, we are not makeshift processing workshops and able to deliver sustainable, steady product supply and technical support. We offer one-stop full-lifecycle export services covering pre-sales customization, order progress tracking and professional after-sales maintenance and warranty. Our responsive multilingual service team strives to deliver seamless cooperation with clients.

FAQ

Q1: Can you provide exclusive customized solutions for special project demands? 
A1: Yes. In addition to conventional OEM and ODM customization, we can develop exclusive product structures, adjust technical parameters and optimize solutions according to special project standards, regional industry specifications and personalized buyer requirements, providing one-to-one customized technical support.
 
Q2: Do you support third-party factory inspection and product random testing? 
A2: We support on-site factory audit and offline random inspection by buyers or authoritative third-party institutions. Our standardized production process, complete quality records and standardized management system can comply with mainstream international factory inspection standards.
 
Q3: How do you ensure on-time delivery for bulk orders? 
A3: We have a scientific production scheduling system and sufficient material reserve chain. According to order quantity and delivery cycle, we will formulate a detailed production plan, arrange special personnel to track progress in real time, and effectively avoid delivery delays to ensure stable and punctual shipment of bulk and urgent orders.
 
Q4: Why is your factory price more stable than trading companies? 
A4: As a direct manufacturer, we control all links from raw material procurement, production processing to finished product output. There is no intermediate markup, and we can adjust costs according to long-term cooperative orders, maintaining stable and transparent pricing for long-term strategic partners.
 
Q5: What customized service items can you support besides product structure? 
A5: Besides structural size and precision tolerance customization of industrial ceramic and quartz products, we support personalized services including custom deep processing, surface treatment, laser marking, custom packaging and technical document customization to meet different industrial and brand standards.