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GQZ NA12581SW Single Row Inch Tapered Roller Bearing NA12581SW/K38985 Separable Cone And Cup Heavy Impact Resistance

Name: GQZ NA12581SW Single Row Inch Tapered Roller Bearing NA12581SW/K38985 Separable Cone And Cup Heavy Impact Resistance
Brand: Wuxi Guangqiang Bearing Trade Co.,Ltd
SKU: NA12581SW/K38985
Price: 325.00 USD
Availability: InStock

Brand Name:	GQZ
Model Number:	NA12581SW/K38985
MOQ:	100.PCS
Price:	negotiation
Delivery Time:	5 working days
Payment Terms:	T/T,Western Union,Paypal,MoneyGram

Detail Information

Product Description

Detail Information

Place of Origin:

CHINA

Certification:

ISO9001/ISO14001/GJB9001

Payment Term:

T/T,paypal,Western Union

Specification:

Open, Z, ZZ, RZ, 2RZ, RS, 2RS

Certifiexcavatore:

ISO/TS16949

Color:

Black, Grey, White, Red, Green

Loadtype:

Radial And Axial

Package:

Cartons,Netural Packing

Precison:

Precisiongrade:

ABEC 1 To ABEC 9 Or ISO P0 To P4

Packing:

Original Packaging

Sample Available:

Available

Factory Type:

Trade+ Factory

Delivery:

1~15days

Bearing:

ZKLF2068-2RS

Noise:

Z1, Z2, Z3, Z4

Number Of Row:

Single Row,Double Row

Vibration And Noise:

Z0V0 / Z1V1 / Z2V2 / Z3V3

Materila:

Gcr15 Chrome Steel

Oil Rotation Speed:

56000

Seals Type:

OPEN ZZ 2RS

Stock:

735 PCS

Other Materials:

Available

Load Direction:

Radial Bearing

Vibration Level:

Z1V1 Z2V2 Z3V3

Precision:

P0 P6 P5 P4

Port:

SHANGHAI/NINGBO

Service:

OEM Service/ Customized Service

Certifiexcavatorion:

ISO9001:2008

Type:

Rolling Element Bearing

Vibration Level Code:

V1,V2.V3

The Whole Volume:

0.0263 CBM

Noise Level:

Z1,Z2

Rows Number:

Single

Free Sample:

Available

Speedrating:

High Speed Capability

Outside:

Stardard Size

Hs Code:

8482102000

Weight:

1.45kg.

Feature:

Low Noise. Long Life

Width:

14 Mm

Operating Temper:

-25°C ~ +120°C

Application:

General Industrial Transmission Systems

Rolling Body:

Roller Bearings

Warranty:

12 Months

Innerring:

Tapered

Grease Lubrication:

750 R/min

Outer Diameter:

320mm

Lubrication:

Grease Or Oil

Other Number:

90368-34001

Bore Size:

34.925 Mm

Packaging Details:

Standard Carton Box

Supply Ability:

1000.pcs / Month

Product Description

1. Product Overview

NA12581SW/K38985 is imperial standard single row tapered roller bearing.

NA12581SW: Inner cone assembly; SW suffix means chamfer design on cone front face for lubrication passage
K38985: Matching single outer cup

Separable cone & cup construction enables independent installation, disassembly and inspection. It can withstand combined heavy radial load and unidirectional axial thrust. Normally installed in opposed paired layout to support bidirectional axial forces. Open design supports periodic re-lubrication maintenance. Widely used on special engineering machinery, heavy transport equipment, mining auxiliary units and custom heavy-duty rotary transmission assemblies.

Formal quotation will be sent within 24 hours upon your inquiry.

2. Technical Specifications

Model: NA12581SW/K38985
Dimensions: d=20.638 mm (0.8125 inch), D=76.2 mm (3.000 inch), T=48.42 mm
Inner ring width B: 24.211 mm
Outer ring width C: 20.638 mm
Net weight: approx 1.40 kg
Structure: Single row tapered roller bearing
Material: GCr15 bearing chrome steel, pressed steel cage
Structural feature: Separable cone and cup
Reminder: Cross reference to Timken inch series; please confirm interchange dimension before replacement
Additional Data: Complete dimension drawings and load data available on request.

3. Core Advantages

SW chamfered cone structure improves lubricant flow, reduces edge stress and extends service life
Separable cone & cup design simplifies maintenance and component replacement
Robust roller geometry provides excellent shock resistance under variable heavy loads
Carries heavy radial load together with substantial single-direction axial load simultaneously
Standard imperial dimension matching overseas special equipment aftermarket
Customizable: OEM laser marking, heavy-duty extreme pressure grease, P6 precision grade

4. Application Scenarios

Special construction machinery and custom heavy engineering equipment
Mining auxiliary transport and crushing supporting assemblies
Heavy-duty off-road vehicle transmission and hub positions
Steel plant auxiliary rotary equipment and large reduction gear units
Low-to-medium speed machinery under alternating impact loads

5. Why Choose GQZ Bearing

25 years professional bearing manufacturer, products exported globally.
Strict raw material inspection and precision superfinishing process.
Professional support for inch series model cross reference verification.
24-hour technical consultation for interchange confirmation.
Ample stock for machinery distributors.
Precise dimensions and stable service performance.

6. Quality Control Process

GCr15 raw material quenching & tempering hardness inspection
Precision superfinishing for raceways and tapered rollers
Cone chamfer geometry and surface roughness inspection
Dimension tolerance, contact angle and rotational performance testing

7. Request Quotation

If you need NA12581SW/K38985 tapered roller bearings:

Send inquiry to obtain below supports:

Quick quotation within 24 hours
Cross-model interchange technical verification
Competitive factory direct price

Contact our sales team for full datasheets and formal offer.

8. FAQ

Q1: Model composition explanation: NA12581SW = inner cone assembly; K38985 = outer cup.
Q2: Main dimensions of NA12581SW/K38985?: 20.638×76.2×48.42 mm single row inch tapered roller bearing.
Q3: SW suffix function: Chamfer on cone front face, forming lubrication channel to improve lubrication efficiency.

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products details

GQZ NA12581SW Single Row Inch Tapered Roller Bearing NA12581SW/K38985 Separable Cone And Cup Heavy Impact Resistance