What is the lead time for production?

The average lead time is one month, ranging from 1 to 3 months depending on the season.

What material is used for these bearings?

They are manufactured from high-quality high carbon chromium bearing steel (GCr15).

What is the load direction for this bearing?

The bearings are primarily designed to handle radial loads.

Sealed Nnu4928K Double Row Cylindrical Roller Bearing

Name: Sealed Nnu4928K Double Row Cylindrical Roller Bearing
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2154740782

Henan, ChinaLuoyang Rock Precision Engineering Co., Ltd.

US$1.00

1 Piece

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Rolling Body

Cylindrical Rollers

The Number of Rows

Double

Model NO.

NNU Series

Outer Dimension

Multiple Sizes Available

Material

High Carbon Chromium Bearing Steel

Spherical

Non-Aligning Bearings

Load Direction

Primarily Radial Load

Separated

Transport Package

Stardard

Specification

Stardard

Trademark

Rock

Origin

Luoyang

HS Code

8431100000

Production Capacity

5000 Pieces/Year

Key features

High Precision Grades: Available in P4 and P5 precision grades for superior rotational accuracy.

Heavy Load Capacity: Double row cylindrical rollers provide exceptional radial load capacity and rigidity.

Separable Design: Separable structure allows for easy mounting, maintenance, and assembly.

High-Speed Performance: Low friction design ensures excellent performance in high-speed spindle applications.

Thermal Expansion Compensation: Non-locating structure allows free axial displacement to compensate for thermal expansion.

Premium Material: Manufactured from high-quality high carbon chromium steel (GCr15) for durability.

Flexible Bore Options: Available with tapered bore (K type) for secure interference fit installation.

Wide Size Range: Multiple sizes available from small to large bore diameters to suit various needs.

Company profile

High Repeat Buyers Choice

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: ≤1.98h

AI-Powered supplier vetting

SummaryLuoyang Rock Precision Engineering Co., Ltd. is a Chinese supplier established in 2022, specializing in bearings and related machinery. The company offers extensive customization capabilities and has OEM partnerships with well-known brands. Despite these strengths, the supplier lacks formal after-sales service procedures and overseas operational capabilities. With only one production line and limited export trade experience, their manufacturing and export capacities are modest. Financial data shows consistent capacity, but other areas like innovation and certifications remain unexplored.

After-Sales capabilityThe supplier does not have written procedures or records for handling customer complaints or service capability assessments.

Financial creditThe supplier has consistent financial data over the last three years, showing stable financial capacity.

R&D capabilityThe supplier does not have research and development capability with SDK availability.

Customization capabilityThe supplier offers full customization, including from samples and designs, indicating strong flexibility in product customization.

Product Q&A

Q:What are the main applications for NNU Series bearings?

They are ideal for machine tool spindles (CNC lathes, machining centers), rolling mills, heavy industrial machinery, wind turbine main shafts, mining equipment, and high-speed electric motors.

Q:What precision grades are available?

High precision grades P4 and P5 are available to meet demanding requirements for rotational accuracy.

Q:Can the bearings be customized?

Yes, OEM and ODM services are available. Customization options include samples, designs, full customization, minor customization, and flexible customization.

Q:What is the minimum order quantity?

The minimum order quantity is 1 set.

Q:What are the payment terms?

Payment can be made via LC, T/T, D/P, PayPal, Western Union, or small-amount payment.