GQZ 3320 Inch Tapered Roller Bearing Outer Cup, Matched With 3386 Inner Cone For Truck, Trailer And Agricultural Wheel Hubs

3320 is the separable outer cup of inch tapered roller bearing set 3386/3320, matched with 3386 inner cone. It bears combined radial and unidirectional axial loads, widely applied to heavy truck, trailer and tractor wheel hubs under rough road heavy impact.

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👉 Full technical data and drawings available upon request

• Independent outer cup supports single-piece replacement to cut spare parts cost
• Super-finished tapered raceway fits rollers tightly, low friction and less heat
• High hardness chrome steel resists wear, deformation and vehicle overload shock
• Standard inch dimension fully interchangeable with original 3320 for direct repair
• Custom anti-rust coating, heavy-duty grease and OEM laser marking supported

👉 Helps reduce maintenance cost and improve machine performance

This bearing outer cup is widely used in:

• Heavy truck & semi-trailer wheel hub assemblies
• Tractor and harvester axle replacement parts
• Light construction transport vehicle wheel ends
• Small off-road mining transport machinery
• General industrial heavy-duty reduction gearboxes

👉 Ideal for customers looking for durable heavy-load tapered roller outer cup solutions

• 25+ years experience manufacturing inch tapered roller bearings
• Exported to 50+ countries worldwide
• Strict dimension, hardness and raceway smoothness inspection before shipment
• Fast response within 24 hours
• Stable bulk supply for vehicle spare parts distributors

👉 We focus on quality, reliability, and long-term partnership

• GCr15 steel raw material metallurgy & hardness inspection
• Precision tapered raceway superfinishing grinding
• Stable quenching & tempering heat treatment
• Matching clearance test with standard 3386 cone
• Full OD, width and fillet dimension inspection

👉 Ensuring stable matching performance for every bearing cup

Looking for replacement tapered roller outer cup 3320 matched with 3386?

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• Fast quotation within 24 hours
• Technical support from engineers
• Custom solution suggestions
• Competitive factory price

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