What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

Do you have stock for the NA5911 to NA5918 series?

Yes, we offer these specific models as well as other RNA and NA series models from stock.

What is the certification status of your products?

Our products hold CE certification, ensuring they meet required safety and quality standards.

Precision Needle Bearings Na5911 to Na5918 with Inner Ring Design

Name: Precision Needle Bearings Na5911 to Na5918 with Inner Ring Design
Brand: Zaozhuang Yiding Bearing Co., Ltd.
SKU: 1937373322

Shandong, ChinaZaozhuang Yiding Bearing Co., Ltd.

US$1.00

100 Pieces

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Cage

With Cage

Rows Number

Single

Model NO.

NA5911

Load Direction

Radial Bearing

Style

Without Inner Ring, With Inner Ring

Material

Bearing Steel

Type

Closed

Transport Package

as Your Request

Specification

All size in stock

Trademark

Edinh

Origin

China

Production Capacity

500000/20 Days

Key features

High Load Capacity: Solid ring design with cage offers smaller volume and higher carrying capacity for large transmission power.

Flexible Inner Ring Options: Available with or without inner ring to suit different radial dimension constraints and shaft designs.

High Speed Performance: Cage separates needle rollers to reduce friction, enabling use in components with higher rotational speeds.

Effective Sealing Protection: Sealed versions prevent dirt intrusion and are filled with lithium-based grease for durability.

Wide Application Range: Suitable for heavy industry, gearboxes, engines, steering systems, and various mechanical tools.

Stock Availability: Common models like NA5911-NA5918 and RNA series are available from stock for quick delivery.

CE Certified Quality: Products meet CE certification standards ensuring quality and safety for international markets.

Fast Lead Time: Average lead time within 15 workdays for both peak and off-season periods.

Company profile

Zaozhuang Yiding Bearing Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading CompanyExport Year: 2011-02-02 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.78h CertifiedTerms of Payment: LC, T/T, D/P, etc. CertifiedInternational Commercial Terms(Incoterms): FOB, CIF, CFR

AI-Powered supplier vetting

SummaryZaozhuang Yiding Bearing Co., Ltd. is a China-based trading company established in 2014, specializing in bearing export, sales, production coordination, and after-sales service. It offers multiple bearing categories and reports broad export coverage, with peak- and off-peak fulfillment stated as within 15 working days. The supplier describes quality-assurance and management systems, but supplier-management certification is recorded as NIL. Its stated workforce is seven employees, including 6–10 quality-control staff in another record, creating an internal inconsistency. R&D experience is limited to one year, and no direct customization capability or named customer portfolio is provided. A single trade transaction is recorded, which is insufficient to establish broad customer-case experience. Financial credibility cannot be assessed because the available financial-related information is incomplete and monetary data is excluded.

Supplier typeThe supplier is explicitly identified as a trading company and limited company headquartered in Zaozhuang, Shandong, China. Its stated operations include bearing export, selling, production, and after-sales service, but the available classification identifies it primarily as a trading company.

CertificationsSupplier-management-system certification is explicitly recorded as NIL. Although the supplier claims to have established a strict quality-assurance system, no formal certification is evidenced in the provided information.

After-Sales capabilityThe supplier explicitly states that it provides after-sales service and describes a professional management system covering pre- and post-sales activities. Its company background also lists after-service as part of its operations, providing positive but self-reported evidence of capability.

Production capacityThe supplier reports two production lines, stated product output for ball screws, roller bearings, and ball bearings, and fulfillment within 15 working days in both peak and off-peak periods. However, the company is classified as a trading company and the production information is not independently supported, so capability is evidenced but not fully verifiable.

Product Q&A

Q:What is the difference between bearings with and without inner rings?

Bearings without inner rings (RNA/NK type) are for limited radial dimensions where the shaft serves as the rolling surface. Bearings with inner rings (NA/NKI type) allow separate installation and do not restrict axial displacement.

Q:What are the surface requirements for shafts used with inner-ring-less bearings?

The journal surface must have a hardness not lower than HRC60 and a surface roughness Ra value not more than 0.63um to ensure high life and running accuracy.

Q:Are sealed versions available for these needle roller bearings?

Yes, sealed versions are available on one or both sides. They are filled with lithium-based grease and feature wider inner rings to ensure good sealing even with slight shaft displacement.

Q:What types of applications are these bearings suitable for?

They are widely used in heavy industry machine tools, gearboxes, transfer cases, engines, steering and braking systems, axle supports, and electrical tools like copiers and printing presses.

Q:What is the average lead time for orders?

The average lead time is within 15 workdays for both peak season and off-season periods.