GQZ 445/440A Single Row Inch Tapered Roller Bearing 63.5×114.3×39.688mm Separable Cone And Cup Shock Resistant Structure

445/440A is standard imperial single row tapered roller bearing, composed of separable inner cone (445) and outer cup (440A). It supports combined heavy radial load and unidirectional axial thrust. Usually installed in opposed paired arrangement to withstand bidirectional axial forces. Separable cone & cup design simplifies assembly, disassembly, inspection and periodic re-lubriion. Widely applied on heavy-duty truck wheel hubs, agricultural tractors, harvesting machinery, light engineering equipment and medium-heavy load reduction gear assemblies.

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

Model

445/440A

Dimensions

d=63.5 mm (2.5 inch), D=114.3 mm (4.5 inch), T=39.688 mm

Inner ring width B

39.700 mm

Outer ring width C

31.750 mm

Net weight

approx 1.75 kg

Structure

Single row tapered roller bearing

Material

GCr15 bearing chrome steel, pressed steel cage

Structural feature

Separable cone and cup

Complete dimension drawings and load data available on request.

1. Separable cone & cup structure facilitates convenient maintenance and component replacement
2. Optimized roller profile provides excellent shock resistance under variable impact loads
3. Carries heavy radial load and substantial one-way axial load simultaneously
4. Standard imperial dimension for global agricultural & truck aftermarket interchange
5. Stable operating temperature during continuous medium-speed operation
6. Customizable: OEM laser marking, heavy-duty extreme pressure grease, P6 precision grade

• Medium & heavy-duty truck wheel hub and drive axle assemblies
• Agricultural tractor transmission and wheel supporting positions
• Harvesters and farm engineering machinery drive units
• Light construction machinery and conveyor heavy load assemblies
• Rotary equipment requiring mixed radial and axial load bearing capacity

• 25 years professional bearing manufacturer, products exported globally.
• Strict raw material inspection and precision grinding process.
• 24-hour technical support for model cross reference verifiion.
• 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
• Internal geometry and surface roughness inspection
• Dimension tolerance and rotational performance testing

If you need 445/440A tapered roller bearings:

Send inquiry to obtain below supports:

• Quick quotation within 24 hours
• Cross-model interchange consultation
• Competitive factory direct price
• Contact our sales team for full datasheets and formal offer.