Does the supplier offer OEM or ODM services?

Yes, we provide OEM and ODM services, including customization from samples, designs, and flexible minor customization.

What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

What is the average lead time for production?

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

Ncf3021ek P5 High Precision Bearing K W33

Name: Ncf3021ek P5 High Precision Bearing K W33
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2274218525

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

Single

Model NO.

NCF 30 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

Ultra-High Precision Grades: Available in P2, UP, P4, SP, P5, and P6 grades for CNC spindles and robotics.

Full-Complement Design: Single-row cylindrical rollers maximize radial load capacity and rigidity.

Flexible Shaft Matching: Optional K tapered bore allows for flexible shaft matching and assembly.

Optimized Lubrication: W33 configuration features circumferential groove and oil holes for efficiency.

Separable Structure: Flanged outer ring enables easy installation, disassembly, and maintenance.

Premium Material: Made of high-carbon chromium steel for shock resistance and wear resistance.

Heavy-Duty Applications: Ideal for metallurgical mills, mining machinery, and marine propulsion systems.

Customization Options: Supports customization from samples, designs, and flexible minor adjustments.

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: ≤2.03h

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 precision grades are available for NCF30 series bearings?

We offer full coverage of premium precision grades including P2, UP, P4, SP, P5, and P6 to meet high-precision industrial requirements.

Q:What is the difference between K and W33 configurations?

K indicates a tapered bore for flexible shaft matching, while W33 features a circumferential lubrication groove with oil holes on the outer ring to improve lubrication efficiency.

Q:What are the main applications for these bearings?

They are widely used in CNC machine tool spindles, industrial robot joints, heavy-duty metallurgical rolling mills, mining machinery, and marine propulsion systems.

Q:How should the bearings be lubricated?

Bearings are pre-filled with grease upon shipment. For oil lubrication, specify in the order. Do not mix different grease brands, and replenish every 6-12 months based on conditions.

Q:What is the Minimum Order Quantity (MOQ)?

The Minimum Order Quantity is 1 set.