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The minimum order quantity is 1 set.

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Nn3012 Nn Series High Precision Bearing Cylindrical Roller Bearing for CNC Lathe

Name: Nn3012 Nn Series High Precision Bearing Cylindrical Roller Bearing for CNC Lathe
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2251726095

Henan, ChinaLuoyang Rock Precision Engineering Co., Ltd.

US$35.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Rolling Body

Cylindrical Rollers

The Number of Rows

Double

Model NO.

Outer Dimension

Multiple Sizes Available

Material

High Carbon Chromium Bearing Steel

Spherical

Non-Aligning Bearings

Load Direction

Primarily Radial Load

Separated

Transport Package

Stardard

Specification

Stardard

Trademark

Rock

Origin

Luoyang

HS Code

8431100000

Production Capacity

5000 Pieces/Year

Key features

Super Precision Performance: Designed for CNC lathe spindles with high radial stiffness and rotational accuracy.

Extended Fatigue Life: High-purity bearing steel with special heat treatment and cold treatment processes.

High-Speed Capability: PEEK cages support DmN up to 1,820,000 for maximum speed applications.

Dual Cage Options: Available with PEEK resin or copper alloy cages for different application needs.

Flexible Bore Types: Available in cylindrical and tapered bore types for easy clearance adjustment.

Multiple Size Options: Outer dimensions range from 30mm to 460mm with various inner diameters.

Customization Support: ODM and OEM services available with flexible customization options.

Company profile

High Repeat Buyers ChoiceIn-stock CapacityFast DeliveryCustomization from Samples

Luoyang Rock Precision Engineering Co., Ltd.

Henan, China

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: ≤1.88h

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 are the main applications for this bearing?

Suitable for spindles in machine tools requiring high radial stiffness and high speed, such as CNC lathe spindles, CNC grinding machine wheel spindles, and aero-engine spindles.

Q:What materials are used for the inner and outer rings?

Made of high-purity bearing steel or high-temperature heat-resistant ZTG42Cr bearing steel, combined with special heat treatment and material modification technologies.

Q:What lubrication methods are supported?

Supports both grease lubrication and oil (minimum quantity) lubrication, with specific DmN limits depending on the cage type and series.

Q:Is customization available for this product?

Yes, ODM and OEM services are available. Customization options include samples, designs, full customization, minor customization, and flexible customization.

Q:What are the available bore types?

Both single-row and double-row roller bearings are available in cylindrical bore and tapered bore types. Tapered bore bearings facilitate radial internal clearance adjustment.