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.

1. Standard inch matched set 861/854, excellent interchangeability for overseas aftermarket vehicle spare parts
2. Tapered raceway structure withstands radial force and one-way axial thrust load at the same time
3. Separable inner and outer components support independent fitting and flexible preload adjustment
4. Precision superfinished roller surface reduces friction heat and running noise during continuous operation
5. Stable performance under frequent impact loads for long-distance transportation scenarios
6. 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 lubrication and marking solutions
• Competitive factory direct price

Contact our sales team for full technical datasheets and formal offer.