What is the dynamic load rating?

The dynamic load rating ranges from 172 to 420 kN depending on the model.

Are these bearings suitable for machine-tool spindles?

Yes, they are specifically designed as drop-in upgrades for machine-tool spindles.

P4 Double-Row Cylindrical

Name: Nn3012-Nn3026 K/W33 Machine-Tool Spindle Bearings - P5/P4 Double-Row Cylindrical
Brand: Doking Industrial Limited
SKU: 2114804322

Hebei, ChinaDoking Industrial Limited

US$3.80-9.20

10 Pieces

Sample price:US$5.50/piece.Request sample

Product profile

Customization

Available

Rolling Body

Roller Bearings

The Number of Rows

Single

Model NO.

Nn3012, Nn3013, Nn3014, Nn3015, Nn3016, Nn3017

Outer Dimension

35mm-180mm

Material

Bearing Steel

Spherical

Non-Aligning Bearings

Load Direction

Radial Bearing

Separated

Application

Heavy-Duty Freight Cars

Service

OEM, ODM, Customized Services

After Service

Within 24 Hours Response

Lubrication

Grease or Oil

Clearance

C2 C0 C3 C4 C5

Feature

Long Life / Durable / Low Voice

Precision

Super-Finishing Rollers

Inner

Standard

Width

Standard

Lubricate

Oil Grease Dry

Structure

Cylindrical

Transport Package

Box+Carton+Pallet

Specification

standard

Trademark

DOKING

Origin

China

HS Code

8482500090

Production Capacity

500000PCS a Month

Key features

Super-Precision P5/P4 Grade: Features P5/P4 tolerance and super-finished rollers for high-precision machine-tool spindles.

High-Speed Performance: Supports oil-limit speeds of 8,000-15,000 rpm with dynamic load ratings up to 420 kN.

W33 Lubrication Groove: Equipped with a W33 lubrication groove and brass cage for efficient operation and durability.

Wide Size Range: Available in bore sizes 60mm-130mm, OD 95mm-200mm, and widths 26mm-52mm.

Drop-in Upgrade Solution: Direct replacement for NN30../W33 and NN30..-K-M-SP series bearings.

Global Same-Day Shipping: Large inventory in stock enables global same-day shipment and fast delivery.

OEM/ODM Customization: Offers OEM, ODM, and customized services for specific application requirements.

Versatile Sealing Options: Available with 2RS rubber seals, ZZ metal seals, or open type without seals.

Company profile

Doking Industrial Limited

Hebei, China

Business Type: Manufacturer/FactoryExport Year: 2008-04-01Nearest Port: TIANJIN, QINGDAOAverage Response Time: ≤2.83hTerms of Payment: T/T, Small-amount paymentInternational Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, FCA

About Our Factory & Business Background

AddressXingtai, Hebei, China

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Our Production Capability & Technical Expertise

Main ProductsBearings, Deep Groove Ball Bearing, Tapered Roller Bearing, Pillow Block Bearing, Thrust Roller Bearing, Wheel Hub Bearing, Cylindrical Roller Bearing, Spherical Roller Bearing, Bearing Bushing, Needle Roller Bearing