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6311 C3 Advanced Ceramic-Coated Electrically Insulated Ball Bearing for Pump Motors
US$1.00
1 Piece
Sample price:US$10.00/piece.Request sample
Product profile
Customization
AvailableTransport Package
WoodenSpecification
StandardModel NO.
6311Trademark
RockOrigin
LuoyangHS Code
8413910000Production Capacity
5000 Pieces/YearKey features
Electrical Insulation Barrier: Aluminium-oxide ceramic coating blocks current to prevent pitting and premature failure.
Moisture-Resistant Coating: Resin-sealed ceramic coating preserves insulation performance in humid environments.
Interchangeable Dimensions: Complies with ISO 15 standards for easy replacement without shaft or housing redesign.
High Voltage Resistance: Minimum 50 MOhm resistance for 1,000 V DC; options available up to 3,000 V DC.
Customizable Insulation Location: Available with outer-ring or inner-ring plasma-sprayed aluminium-oxide coating.
Flexible Clearance Options: C3 clearance standard; CN, C4, or special clearances available upon engineering confirmation.
Comprehensive Inspection Support: Dimensional and insulation test reports supplied upon agreement in quotation.
OEM and ODM Services: Full customization, minor customization, and design-based customization services available.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.28h
AI-Powered supplier vetting
SummaryLuoyang Rock Precision Engineering Co., Ltd. is a China-based limited company established in 2022 with 19 employees. Its stated product scope includes bearings, machine tools, robots, and port machinery, and its products are reportedly used in construction machinery, mining equipment, CNC machine tools, wind power, robotics, and heavy industry. The supplier reports flexible customization and OEM service for well-known brands, but no SDK availability. Manufacturing resources include one production line and two export-trade staff, with one experienced export employee. Service-control weaknesses are documented: no written procedures or records for supplier-service assessment, corrective and preventive actions, or complaint handling. Finished products are checked by packing staff, and continuous quantity reconciliation is not performed for each batch. Overseas warehouse, showroom, agent/branch, and offline trade-show capabilities are absent. Certification holdings, verified customer cases, and sufficient...
After-Sales capabilityFinished products are checked by packing staff, but the supplier has no written procedures or records for effective service-capability assessment, corrective and preventive actions, or customer-complaint handling. It also has no overseas warehouse, showroom, agent or branch, and has not participated in offline trade shows, indicating limited documented and overseas service infrastructure.
R&D capabilityThe company describes 20 years of continuous innovation and modern precision technology, and its products are used in technically demanding sectors including CNC machine tools, wind power, robotics, and heavy industry. However, it explicitly reports no available SDK, so software-development integration capability is not demonstrated.
Production capacityThe supplier reports one manufacturing production line and one year of export experience, supported by two export-trade staff and one experienced export employee. It does not perform continuous quantity reconciliation for every batch or mass-production run, which is a stated production-control weakness.
Customization capabilityThe supplier explicitly reports customization from samples, designs, full customization, minor customization, and flexible customization. It also states that it provides OEM services for well-known brands, supporting a positive assessment of customization capability.
Product Q&A
Q:What is the standard insulation voltage rating?
A:
The standard reference voltage class is 1,000 V DC with a minimum resistance of 50 MOhm. Options for 2,000 V or 3,000 V DC are available upon confirmation.
Q:Can the insulation be applied to the inner ring?
A:
Yes, insulation can be applied to the outer ring (outside diameter and side faces) or the inner ring (bore and side faces) via plasma-sprayed aluminium-oxide.
Q:Are these bearings compatible with existing motor shafts?
A:
Yes, they retain nominal boundary dimensions of standard 63 series bearings, allowing replacement without redesigning the shaft or housing in most applications.
Q:What clearance options are available for motor applications?
A:
C3 radial internal clearance is commonly selected. Other clearances like CN or C4, as well as special clearances, are subject to engineering confirmation.
Q:Do you provide test reports for these bearings?
A:
Dimensional and insulation test reports can be supplied when agreed upon in the quotation.
Send Inquiry
*To:
Luoyang Rock Precision Engineering Co., Ltd.
Luoyang Rock Precision Engineering Co., Ltd.*Content:
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