22220 CC/W33 100x180x46mm Double Row Self-Aligning Spherical Roller Bearing With W33 Lubrication Groove

1. Product Overview

22220 CC/W33 is standard metric double row spherical roller bearing with overall dimension 100×180×46mm. CC stands for optimized symmetrical spherical roller internal structure matched with stamped steel cage, which evenly distributes roller pressure and reduces internal friction loss. W33 design equips outer ring with full circumferential lubrication groove and three oil injection holes, allowing convenient on-site grease replenishment without complete disassembly of equipment. Spherical outer raceway provides excellent self-aligning performance, tolerating up to 1.5° shaft deflection, installation misalignment and housing deformation without abnormal heat generation. Double row spherical rollers undertake ultra heavy radial load and stable bidirectional axial thrust simultaneously, featuring outstanding shock resistance, fatigue resistance and stable operation under long-term vibration, dust and high-load harsh working conditions. Widely matched for mine crushers, vibrating screens, heavy industrial reducers, large belt conveyors, concrete mixers, paper machinery and heavy construction equipment.

2. Technical Specifications

Model: 22220 CC/W33
d:100mm, D:180mm, B:46mm
Min fillet r:2.1mm
Dynamic load Cr:277kN, Static load C0r:425kN
Grease limiting speed:3400r/min, Oil limiting speed:4300r/min
Net weight:5.02kg
Structure: Double row spherical roller, CC symmetrical roller design, stamped steel cage, W33 outer ring lubrication groove & oil holes
Material: Vacuum smelting GCr15 bearing steel, hardness HRC60-65
Clearance: Standard CN, C2/C3/C4 customizable
Precision: P0 standard, P6/P5 optional
Operating temperature: -30℃ ~ 180℃
Dimension drawings and heavy vibration endurance test reports available on request.

3. Core Advantages

• CC symmetrical roller internal structure optimizes contact stress distribution, lowers heat generation and extends service life under continuous ultra-heavy alternating load
• Integrated W33 annular lubrication groove and oil holes support periodic supplementary lubrication, greatly cutting equipment maintenance downtime and production loss
• Powerful self-aligning compensation capability adapts to shaft bending, housing deformation and assembly offset, effectively avoiding premature bearing burnout and failure
• Double row roller layout delivers superior heavy radial bearing capacity, reliably bears two-way axial thrust loads at the same time
• High toughness carburized bearing steel rings and rollers, excellent anti-shock and anti-fatigue performance, fully adaptable to dusty mining and construction severe environments
• Standard ISO metric interchangeable dimension, universal replacement for all mainstream heavy industrial machinery spare parts
• Multiple customizable configurations: brass machined cage, C3 loose clearance, high-temperature anti-oxidation grease, outer ring laser marking service

4. Application Scenarios

• Mining & crushing equipment: Jaw crushers, cone crushers, vibrating screens, mine long-distance heavy belt conveyors
• Industrial transmission equipment: Large heavy-duty gear reducers, mine speed reduction boxes, main drive gearboxes
• Construction machinery: Concrete mixers, road roller walking assemblies, large excavator auxiliary transmission spindles
• Paper & textile industry: Paper machine drying rollers, heavy textile loom main rotating shafts
• General heavy-duty equipment: Large industrial exhaust fans, grain processing heavy machinery, lifting transport equipment

Fit OEM assembly and aftermarket replacement of heavy-load, continuous vibration industrial rotating equipment.

5. Why Choose GQZ Bearing

25 years professional manufacturer of full 22200 series spherical roller bearings. Adopt high-purity vacuum smelting GCr15 bearing steel with complete quenching and tempering heat treatment, stable anti-fatigue and anti-shock performance under long-term heavy vibration load. Full OEM & ODM customization support for cage material, radial clearance grade, precision class and special high-temperature lubricants. Complete strict full-process inspection workflow: raw material hardness detection, CNC ultra-precision spherical raceway mirror superfinishing, high-precision roller sorting and heavy vibration aging durability test. 24-hour professional technical support for misalignment shaft matching and periodic W33 relubrication layout design. Factory direct bulk price, sufficient 22220 CC/W33 bearing spot stock for global mining, reducer and construction machinery manufacturers.

6. Quality Control

1. Raw material chemical composition and hardness inspection
2. Integral quenching and stress relief tempering to eliminate internal residual stress
3. CNC ultra-precision inner and outer ring spherical raceway mirror superfinishing
4. High-precision spherical roller screening and stamped steel cage stamping forming
5. Dust-free assembly with heavy-duty anti-wear mechanical grease pre-filling
6. Continuous rotation aging and heavy vibration load cycle wear resistance testing
7. Full dimensional inspection, anti-rust oil coating, neutral moisture-proof export carton packaging

Each batch passes rotation smoothness and temperature rise test to guarantee stable long-term heavy-load self-aligning operation for mining and heavy industrial equipment.

7. Get A Quote

Send inquiries for 22220 CC/W33 self-aligning spherical roller bearings used on mining crushers, heavy conveyors and large industrial heavy reducers.
Available services:

1. Standard formal quotation document delivered within 24 working hours
2. Professional technical guidance for misalignment shaft fit tolerance and W33 relubrication pipeline layout
3. Upgrade options: P5 high precision grade, C3 loose clearance, solid brass machined cage, high-temperature synthetic grease
4. Competitive factory bulk unit price for large quantity orders

Please state order quantity, operating load, rotating speed and working environment to receive complete quotation documents.

8. FAQ