GQZ 30317DU Single Row Tapered Roller Bearing 85×180×42mm Reinforced DU Structure For Heavy Load Transmission Shafts
30317DU is single row separable tapered roller bearing adopting upgraded DU reinforced roller structure. Tapered contact surfaces between rollers and raceways can bear heavy radial load and unidirectional axial load simultaneously. Separable inner cone and outer cup facilitate installation, disassembly and preload adjustment. It is widely applied to heavy-duty transmission systems subjected to impact load and mixed working loads.
Formal quotation will be sent within 24 hours upon your inquiry.
Model: 30317DU
Dimensions: d85 mm, D180 mm, T42 mm
Net weight: approx 4.85 kg
Dynamic load rating Cr: 295 kN
Static load rating Cor: 372 kN
Limiting speed: Grease 2700 rpm, Oil 3500 rpm
Structure: Single row tapered rollers, DU strengthened design, separable inner cone & outer cup
Material: GCr15 bearing chrome steel, stamped steel cage
Clearance: Standard factory preset clearance, custom clearance available
Complete dimension drawings and load data available on request.
- DU optimized roller structure expands contact area, greatly improves load capacity and shock resistance
- Tapered raceway structure withstands radial force and one-way axial thrust at the same time
- Separable inner and outer components support independent fitting and flexible preload adjustment
- Superfinished roller surface reduces friction heat and running noise during continuous operation
- Standard metric dimensions, fully interchangeable with same specifiion tapered roller bearings
- Customizable options: OEM laser marking, high temperature resistant grease, special clearance grades
Effectively reduce roller fatigue wear and extend service life of heavy machinery transmission assemblies.
- Truck, bus drive axles, differential and vehicle gearbox assemblies
- Excavators, loaders and other construction machinery rotary transmission components
- Agricultural machinery gearboxes and power output drive shafts
- Heavy industrial reducers and large conveyor roller supporting structures
- Mining machinery and engineering vehicle wheel hub assemblies
- General mechanical equipment operating under heavy combined radial and axial loads
25 years professional manufacturer of tapered roller bearings
Products exported to over 50 countries worldwide
Strict inspection on raw material hardness, roller surface finish, load capacity and rotational smoothness before delivery
24-hour professional technical support for clearance selection and installation guidance
Sufficient bulk stock for automotive, engineering and machinery distributors
We supply stable dimensional accuracy, reliable impact-resistant performance and long-term cooperative support.
GCr15 raw material composition and hardness inspection
Complete quenching & tempering heat stabilization treatment
Superfinishing grinding for inner cone, outer cup and roller surfaces
Stamped cage forming and deburring treatment
Full dimension tolerance, static & dynamic load and rotational performance testing
If you need 30317DU reinforced tapered roller bearings:
Send inquiry to obtain below supports:
- Quick formal quotation within 24 hours
- Professional preload adjustment advice for various working scenarios
- Custom lubriion and marking solutions
- Competitive factory direct price
Contact our sales team for full technical datasheets and formal offer.
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