GQZ 32221-A Single Row Tapered Roller Bearing 105×190×53mm Separable Design For Heavy Load Transmission Shafts

32221-A is single row separable tapered roller bearing adopting optimized A-type internal geometry. Tapered contact surfaces between rollers and raceways can withstand heavy radial load and unidirectional axial load simultaneously. Separable inner cone and outer cup simplify installation, disassembly and preload adjustment. It is widely applied to heavy-duty transmission systems subjected to impact vibration and mixed load conditions.

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

Model: 32221-A

Dimensions: d105 mm, D190 mm, T53 mm

Net weight: approx 6.28 kg

Dynamic load rating Cr: 328 kN

Static load rating Cor: 425 kN

Limiting speed: Grease 2400 rpm, Oil 3100 rpm

Structure: Single row tapered rollers, A optimized geometry, 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.

1. A optimized internal geometric design optimizes stress distribution, improves load capacity and shock resistance
2. Tapered raceway structure 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. Superfinished roller surface reduces friction heat and running noise during continuous operation
5. Standard metric dimensions, fully interchangeable with same specification tapered roller bearings
6. Customizable options: OEM laser marking, high temperature resistant grease, special clearance grades
7. 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 heavy-load performance and long-term cooperative support.

• GCr15 raw material chemical 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 32221-A tapered roller bearings:

Send inquiry to obtain below supports:

• Quick formal quotation within 24 hours
• Professional preload adjustment advice for various working scenarios
• 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 suffix A mean for 32221-A?

Suffix A represents optimized internal geometry design for better stress distribution and higher load capacity.

Q2: Main dimensions of 32221-A?

105×190×53 mm, single row heavy-duty tapered roller bearing.

Q3: What loads can this bearing bear?

It can withstand heavy radial load and one-way axial thrust load simultaneously.