What is the lead time for orders?

The average lead time is one month, with a range of 1-3 months depending on the season.

What payment terms are accepted?

Accepted payment terms include LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

What are the recommended maintenance intervals?

We recommend a grease replenishment cycle of six to twelve months based on varying application conditions to maintain optimal lubrication protection.

High Quality Durable Nnf5028ek P6 High Precision Bearing K W33

Name: High Quality Durable Nnf5028ek P6 High Precision Bearing K W33
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2145100652

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

High Load Capacity: Double-row full complement design maximizes radial load capacity for heavy-duty applications.

Split Inner Ring Design: Features split inner rings for simple installation and easy maintenance in compact spaces.

Contamination Protection: Integrated contact seals protect against contamination, ensuring protected 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 high precision performance.

Versatile Applications: Ideal for industrial gearboxes, mining equipment, steel processing, and marine machinery.

Reduced Maintenance: Designed for reduced maintenance needs in harsh conditions with pre-filled grease options.

Customization Options: Supports full customization, minor customization, and flexible customization based on designs or samples.

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.

Product Q&A

Q:What is the maximum radial load capacity?

The double-row full complement cylindrical roller bearings are designed for maximum radial load capacity, with dynamic load ratings (Cr) ranging from 48 kN to 1050 kN depending on the specific model.

Q:What are the available bore sizes?

The bearings cover a wide range of bore sizes from 20mm to 310mm, including standard 50x series and heavy-duty 3194x series.

Q:Can the bearings be customized?

Yes, customization options are available including full customization, minor customization, flexible customization, and customization from samples or designs.

Q:What is the minimum order quantity?

The minimum order quantity is 1 set.

Q:What lubrication options are available?

Bearings are typically pre-filled with grease upon shipment. Oil lubrication is also available if specified. Different grease brands must not be mixed.