GQZ NA12581SW Single Row Inch Tapered Roller Bearing NA12581SW/K38985 Separable Cone And Cup Heavy Impact Resistance
NA12581SW/K38985 is imperial standard single row tapered roller bearing.
- NA12581SW: Inner cone assembly; SW suffix means chamfer design on cone front face for lubriion 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-lubriion 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.
- 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.
- 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
- 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
- 25 years professional bearing manufacturer, products exported globally.
- Strict raw material inspection and precision superfinishing process.
- Professional support for inch series model cross reference verifiion.
- 24-hour technical consultation for interchange confirmation.
- Ample stock for machinery distributors.
- Precise dimensions and stable service performance.
- 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
If you need NA12581SW/K38985 tapered roller bearings:
Send inquiry to obtain below supports:
- Quick quotation within 24 hours
- Cross-model interchange technical verifiion
- Competitive factory direct price
Contact our sales team for full datasheets and formal offer.
- 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 lubriion channel to improve lubriion efficiency.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.