What is the average lead time for production?

The lead time is one month during the off-season and one month to 3 months during the peak season.

Does the company support OEM or ODM services?

Yes, both OEM and ODM services are available, including full customization, minor customization, and flexible customization.

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.

High Performance Nncf4856ek up High Precision Bearing K Long Service Life

Name: High Performance Nncf4856ek up High Precision Bearing K Long Service Life
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2265470695

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.

NNCF 48 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

Heavy Load Capacity: Double-row full-complement design for extremely heavy radial loads.

High Precision Classes: Available in P2, UP, P4, SP, P5, and P6 precision grades.

Premium Material: Made of chrome steel with optimized heat treatment for durability.

Wide Application: Suitable for gearboxes, rolling mills, mining, and wind power.

Easy Maintenance: Separable inner structure allows convenient installation and service.

Long Service Life: Strong wear resistance ensures reliability in heavy-duty conditions.

Customizable Options: K tapered bore and W33 lubrication groove available for customization.

Flexible Customization: Supports full customization, minor customization, and design-based 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: ≤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 are the main applications of NNCF 48 series bearings?

They are widely used in heavy industrial machinery, large gearboxes, rolling mills, mining machinery, paper-making equipment, crushers, heavy motor shafts, wind power gearboxes, and engineering machinery.

Q:What precision classes are available for this bearing series?

We supply full-range precision classes including P2, UP, P4, SP, P5, and P6.

Q:Can the bearings be customized with specific bores or lubrication?

Yes, optional K tapered bore and W33 lubrication groove with oil holes are available to enhance adaptability.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 set.

Q:What are the payment terms accepted?

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