Is the bearing pre-lubricated?

Bearings are pre-filled with grease upon shipment. Oil lubrication is available if specified in the operating conditions form.

What is the recommended grease replenishment cycle?

We recommend replenishing with the same brand of grease every six to twelve months based on application conditions.

What is the material of the bearing?

The bearing is made of chrome steel.

High Quality Long Service Life Nnf5018ek P6 High Precision Bearing W3

Name: High Quality Long Service Life Nnf5018ek P6 High Precision Bearing W3
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2141480662

Henan, ChinaLuoyang Rock Precision Engineering Co., Ltd.

US$1.00

1 Piece

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Rolling Body

Roller Bearings

The Number of Rows

Double

Model NO.

NNF Series

Outer Dimension

Multiple Sizes Available

Material

Chrome Steel

Spherical

Non-Aligning Bearings

Load Direction

Primarily Radial Load

Separated

Transport Package

Stardard

Specification

Stardard

Trademark

Rock

Origin

Luoyang

HS Code

8482500090

Production Capacity

5000 Pieces/Year

Key features

Maximum Radial Load Capacity: Double-row full complement design optimized for maximum radial load in compact spaces.

Split Inner Ring Design: Facilitates easy installation and maintenance with simple assembly requirements.

Integrated Contact Seals: Provides effective protection against contamination for reliable operation.

Wide Size Range: Available in standard 50x and heavy-duty 3194x series covering 20-310mm bore sizes.

Chrome Steel Material: Constructed from high-quality chrome steel for durability and performance.

Reduced Maintenance Needs: Designed for reduced maintenance requirements in harsh industrial conditions.

OEM and ODM Services: Offers flexible customization from samples, designs, and full customization options.

Pre-filled Grease Lubrication: Shipped pre-filled with grease; oil lubrication available upon request.

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: ≤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.