What is the average lead time for production?

The lead time is one month during the off-season and one month to three months during the peak season.

Does the company offer OEM or ODM services?

Yes, OEM and ODM services are available, including customization from samples, designs, and flexible modifications.

How should the bearings be lubricated?

Bearings are pre-filled with grease upon shipment. For oil lubrication or specific grease requirements, please specify in the operating conditions form.

Best Selling Stable Nnc4016ek P4 Sp High Precision Bearing K W33

Name: Best Selling Stable Nnc4016ek P4 Sp High Precision Bearing K W33
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2266817755

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.

NNC 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

High Precision Grades: Available in P2, UP, P4, SP, P5, P6 precision grades for demanding applications.

Heavy Load Capacity: Double-row cylindrical design with full complement rollers for high rigidity and radial loads.

Customizable Bore & Lubrication: Supports K tapered bore and W33 lubrication groove plus oil holes customization.

Premium Material Quality: Made of high-quality chrome steel ensuring high strength, low noise, and wear resistance.

Versatile Industrial Applications: Ideal for gearboxes, machine tool spindles, reducers, and heavy-duty transmission devices.

OEM/ODM Support: Offers full customization from samples, designs, and flexible minor modifications.

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: ≤0.78h

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.