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 typically one month, or 1-3 months depending on the season.

Are tapered bore options available?

Yes, the NNU series is available with a tapered bore (K type) for interference fit applications.

High Stiffness Nnu4996 Double Row Wind Turbine Bearing

Name: High Stiffness Nnu4996 Double Row Wind Turbine Bearing
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2154740702

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 Radial Load Capacity: Double row cylindrical rollers provide superior load distribution and rigidity for heavy-duty applications.

High Precision Grades: Available in P4 and P5 precision grades for high-speed and high-precision spindle applications.

Separable Design: Separable structure allows easy mounting, maintenance, and free axial displacement for thermal expansion.

Premium Material: Manufactured from high carbon chromium steel (GCr15) for durability and outstanding performance.

Multiple Size Options: Available in multiple sizes from small to large bore diameters to fit various industrial needs.

Tapered Bore Option: Available with tapered bore (K type) for secure interference fit on shafts.

OEM/ODM Service: Supports full customization, minor customization, and flexible customization from samples or designs.

Wide Application Range: Ideal for machine tool spindles, wind turbines, mining equipment, and high-speed electric motors.

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: ≤0.58h

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 features of the NNU4996 bearing?

It features double row cylindrical rollers for high rigidity, separable design for easy maintenance, and high precision grades (P4/P5) for accuracy.

Q:Is this bearing suitable for wind turbine applications?

Yes, it is designed for high-speed and high-precision applications, including wind turbine main shafts, due to its high radial stiffness and reliability.

Q:What material is used to manufacture these bearings?

They are manufactured from high-quality high carbon chromium steel (GCr15) to meet demanding industrial requirements.

Q:Can I customize the bearing size or design?

Yes, we offer OEM and ODM services including full customization, minor customization, and flexible customization from samples or designs.

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

The minimum order quantity is 1 set.