GQZ 4T-30210 Single Row Tapered Roller Bearing 50×90×21.75mm Separable Type For Vehicle And Industrial Transmission Shafts

4T-30210 is single row separable tapered roller bearing. The conical rollers and raceway surfaces can bear radial load and unidirectional axial load simultaneously. The separable cone assembly and outer cup make installation, disassembly and preload adjustment simple and convenient. Widely used for transmission shafts working under mixed radial and axial load conditions.

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

Model: 4T-30210

Dimensions: d50 mm, D90 mm, T21.75 mm

Net weight: approx 0.76 kg

Dynamic load rating Cr: 92.8 kN

Static load rating Cor: 112 kN

Limiting speed: Grease 4600 rpm, Oil 5600 rpm

Structure: Single row tapered rollers, separable inner cone & outer cup, 4T standard configuration

Material: GCr15 bearing chrome steel, stamped steel cage

Clearance: Standard factory preset clearance, customized clearance available

Complete dimension drawings and load data available on request.

1. Standard 4T series structure, excellent interchangeability for aftermarket vehicle and machinery parts
2. Tapered contact surface bears 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. Compact overall size saves installation space for limited-structure mechanical design
6. Customizable options: OEM laser marking, high-temperature grease, special clearance grades
   Effectively reduce roller fatigue wear and extend service life of transmission assemblies.

• Automobile wheel hubs, drive axles and differential assemblies
• Light & medium construction machinery rotary transmission parts
• Agricultural machinery gearboxes and power output shafts
• Small and medium industrial reducers and conveyor support structures
• General machinery with combined radial and unidirectional axial load demands

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 matching guidance

Sufficient bulk stock for automotive, engineering and machinery distributors

We provide 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 cone, cup and roller surfaces

Stamped cage forming and deburring processing

Full dimensional tolerance, static & dynamic load and rotational performance testing

If you need 4T-30210 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.

8. FAQ

Q1: What does 4T stand for?

4T represents complete set tapered roller bearing including inner cone, outer cup, rollers and cage as one unit.

Q2: Core dimension of 4T-30210?

50×90×21.75 mm, single row standard tapered roller bearing.

Q3: What loads can this bearing carry?

Simultaneously radial load and one-way axial thrust load.