GQZ 4T-861/854 Single Row Inch Tapered Roller Bearing 88.9×152.4×39.688mm Separable Matching Assembly
4T-861/854 is single row separable inch-size tapered roller bearing, matched assembly consisting of inner cone 861 and outer cup 854. Tapered contact surfaces between rollers and raceways can bear radial load and unidirectional axial load simultaneously. Separable cone and cup simplify installation, disassembly and preload adjustment. Widely applied on heavy trucks, semi-trailers and engineering transport transmission systems.
Formal quotation will be sent within 24 hours upon your inquiry.
Model: 4T-861/854
Dimensions: d88.9 mm, D152.4 mm, T39.688 mm
Net weight: approx 2.75 kg
Dynamic load rating Cr: 186 kN
Static load rating Cor: 242 kN
Limiting speed: Grease 2400 rpm, Oil 3100 rpm
Structure: Single row tapered rollers, separable 861 inner cone & 854 outer cup, complete 4T set
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.
- Standard inch matched set 861/854, excellent interchangeability for overseas aftermarket vehicle spare parts
- Tapered raceway structure withstands radial force and one-way axial thrust load at the same time
- Separable inner and outer components support independent fitting and flexible preload adjustment
- Precision superfinished roller surface reduces friction heat and running noise during continuous operation
- Stable performance under frequent impact loads for long-distance transportation scenarios
- Customizable options: OEM laser marking, high temperature resistant grease, special clearance grades
Effectively reduce roller fatigue wear and extend service life of vehicle transmission assemblies.
- Heavy truck, semi-trailer wheel hubs and drive axle assemblies
- Medium construction transport machinery rotary transmission components
- Large agricultural machinery gearboxes and power output drive shafts
- Inch-standard industrial reducers and heavy conveyor roller supporting structures
- General mechanical equipment operating under mixed radial and one-way 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 mixed-load performance and long-term cooperative support.
- GCr15 raw material chemical composition and hardness inspection
- Complete quenching & tempering heat stabilization treatment
- Precision superfinishing grinding for inner cone, outer cup and roller surfaces
- Stamped cage forming and deburring processing
- Full dimension tolerance, static & dynamic load and rotational performance testing
If you need 4T-861/854 inch tapered roller bearings:
Send inquiry to obtain below supports:
- Quick formal quotation within 24 hours
- Professional preload adjustment suggestion for different working conditions
- Custom lubriion and marking solutions
- Competitive factory direct price
Contact our sales team for full technical datasheets and formal offer.



Q1: What does 4T-861/854 mean?
4T represents full complete bearing assembly; 861 stands for inner cone, 854 refers to outer cup.
Q2: Main dimensions of 4T-861/854?
88.9×152.4×39.688 mm, inch size single row tapered roller bearing.
Q3: What loads can this bearing bear?
It can withstand radial load and one-way axial thrust load simultaneously.
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