32310/55 Metric Tapered Roller Bearing 55x110x42.25mm Heavy Truck Differential Bearing

1.Product Overview

32310/55 is single row metric separable tapered roller bearing, dimension 55×110×42.25mm, split cone assembly and single flange outer cup. Optimized tapered roller profile reduces edge stress and friction heat. Separable design simplifies assembly and on-site maintenance. It bears combined heavy radial load and one-way axial thrust, widely used in truck differentials, tractor drive axles and engineering gearboxes.

2.Technical Specifications

Model: 32310/55
d:55mm, D:110mm, T:42.25mm
Cone width B:40mm, Cup width C:33mm
Min fillet r:3mm
Dynamic load Cr:165kN, Static load C0r:223kN
Grease limiting speed:4800r/min
Net weight:1.96kg
Structure: Single row separable cone & cup open type
Cage: Stamped steel cage
Material: GCr15 bearing steel, HRC60-65
Clearance: Standard CN, C3 customizable
Precision: P0 standard, P6/P5 optional
Temp range: -30℃~120℃
Drawings and durability test reports available on request.

3.Core Advantages

• Separable cone and cup, no full shaft disassembly for component replacement
• Logarithmic crowned rollers for uniform load distribution and longer fatigue life
• Large composite load capacity for vehicle differential and heavy transmission positions
• High-strength stamped steel cage stable under continuous vibration and impact
• Superfinished raceways lower operating temperature and avoid premature bearing burnout
• Special 55mm bore size, fully interchangeable with mainstream international brands
• Custom clearance, high-temperature grease and exclusive laser marking available

4.Application Scenarios

• Commercial vehicles: Medium & heavy truck differential assemblies, rear drive axles
• Agricultural machinery: Large tractor transmission shafts, harvester gearboxes
• Construction equipment: Loader drive hubs, engineering machinery reducers
• General industry: Mining transport vehicle transmission parts

Suitable for OEM assembly and aftermarket replacement of heavy-duty mobile machinery with composite radial and axial loads.

5.Why Choose GQZ Bearing

25 years production experience of metric tapered roller bearings. Vacuum smelting GCr15 steel with complete quenching and tempering heat treatment for stable hardness. Full OEM & ODM customization for clearance, lubricant and surface marking. Strict full-process inspection covers raw material test, raceway superfinishing, roller sorting and vibration aging test. 24-hour professional technical support for load matching, shaft tolerance selection and regular relubrication plans. Factory direct bulk price, stable stock for global auto and heavy machinery buyers.

6.Quality Control

1. Raw material chemical composition and hardness inspection
2. Integral quenching and stress relief tempering
3. CNC turning and ultra-precision raceway grinding
4. Precise stamped steel cage forming
5. Dust-free assembly with quantitative grease filling
6. High-speed aging and radial-axial composite load fatigue testing
7. Final full dimension inspection, anti-rust coating, neutral export carton packaging

Each batch passes vibration and noise test to guarantee stable operation in dusty and bumpy harsh environments.

7.Get A Quote

Send inquiries for 32310/55 bearings used on heavy truck differentials, agricultural tractors and construction loaders.
Services after inquiry:

1. Standard quotation document delivered within 24 working hours
2. Technical guidance for paired bearing installation, tolerance matching and maintenance lubrication
3. Upgrade options: P5 high precision grade, C3 enlarged clearance, high-temperature synthetic grease
4. Competitive factory bulk price for large quantity orders

Please state order quantity, load, speed and working environment for complete formal quotation.

8.FAQ