22213 CC/W33 65x120x31mm Spherical Roller Bearing W33 Lubrication Groove

1. Product Overview

22213 CC/W33 is metric double row spherical roller bearing with dimension 65×120×31mm. CC is optimized symmetrical roller structure with stamped steel cage for uniform load distribution. W33 refers to outer ring with circumferential lubrication groove and 3 oil holes for convenient on-site grease refilling without equipment disassembly. Spherical outer raceway offers excellent self-aligning performance to accommodate shaft deflection and assembly misalignment up to 1.5°. Double spherical rollers withstand heavy radial load and bidirectional axial thrust, featuring shock resistance and stable operation under long-time vibration, dusty and heavy-duty working conditions. Widely used in industrial reducers, mine crushers, vibrating screens, heavy conveyors, construction mixers and papermaking equipment.

2. Technical Specifications

Model: 22213 CC/W33
d:65mm, D:120mm, B:31mm
Min fillet r:1.5mm
Dynamic load Cr:141kN, Static load C0r:176kN
Grease limiting speed:4000r/min, Oil limiting speed:5000r/min
Net weight:1.42kg
Structure: Double row spherical roller, CC symmetrical roller, stamped steel cage, W33 outer ring lubrication groove & 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 durability test reports available on request.

3. Core Advantages

• CC symmetrical roller design balances contact pressure, lowers heat generation and extends service life under continuous heavy alternating load
• Built-in W33 lubrication groove and holes support periodic refilling, reduce maintenance downtime effectively
• Strong self-aligning ability compensates shaft bending, housing deformation and assembly offset to avoid early bearing damage
• Double roller structure provides great radial load capacity, bears two-way axial thrust simultaneously
• High-toughness bearing steel with outstanding anti-shock and anti-fatigue performance, fits harsh mining and construction environments
• Standard ISO metric interchangeable size, universal replacement for mainstream heavy machinery spare parts
• Custom options: brass machined cage, C3 clearance, high-temperature grease, outer ring laser marking

4. Application Scenarios

• Mining & crushing: Jaw crushers, cone crushers, vibrating screens, heavy mine belt conveyors
• Industrial transmission: Heavy gear reducers, industrial speed reduction boxes
• Construction machinery: Concrete mixers, road roller walking parts, excavator auxiliary transmission shafts
• Paper & textile: Paper machine drying rollers, heavy loom main spindles
• General heavy equipment: Large industrial fans, grain processing machines, lifting transport machinery

Suitable for OEM assembly and aftermarket replacement of heavy-load, vibration-prone industrial rotating equipment.

5. Why Choose GQZ Bearing

25 years professional manufacturer of 22200 series spherical roller bearings. High-purity vacuum smelting GCr15 steel with complete quenching and tempering heat treatment, stable anti-fatigue and shock resistance under long-term heavy vibration load. Full OEM & ODM customization for cage material, clearance, precision grade and special high-temperature lubricants. Strict full-process inspection: raw material hardness test, CNC ultra-precision spherical raceway superfinishing, roller sorting and heavy vibration aging test. 24-hour professional technical support for misaligned shaft matching and W33 relubrication layout design. Factory direct bulk price, sufficient 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 residual stress
3. CNC ultra-precision inner & outer spherical raceway mirror superfinishing
4. High-precision spherical roller screening and stamped steel cage forming
5. Dust-free assembly pre-filled with heavy-duty anti-wear mechanical grease
6. Continuous rotation aging and heavy vibration wear resistance cycle testing
7. Full dimension 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.

7. Get A Quote

Send inquiries for 22213 CC/W33 self-aligning spherical roller bearings for mining crushers, heavy conveyors and industrial heavy reducers.
Services after inquiry:

• Standard formal quotation document within 24 working hours
• Technical guidance for misalignment shaft tolerance and W33 lubrication layout
• Upgrade options: P5 precision, C3 clearance, brass cage, high-temperature synthetic grease
• Competitive factory bulk price for large orders

Please state order quantity, working load, rotating speed and environment for full quotation documents.

8. FAQ