Spherical Roller Bearing 22311CC/W33 55×120×43mm Double Row for Heavy-Duty Machinery

Spherical Roller Bearing 22311CC/W33 55×120×43mm Double Row for Heavy-Duty Machinery

The 22311CC/W33 Double-Row Spherical Roller Bearing is designed to withstand extreme radial loads and complex axial forces in heavy industrial machinery. Featuring a refined internal configuration (CC-design) with two window-type steel cages and a flangeless inner ring, it provides exceptional stability, low operating friction, and automatic self-alignment capability under heavy vibration or shaft deflection.

• Model: 22311CC/W33 (Also classified as 22311 CC/W33)
• Inner Diameter (ID): 55 mm
• Outer Diameter (OD): 120 mm
• Width (B): 43 mm
• Structure: Double Row Spherical Roller Bearing
• Cage Type: CC-Type (Two window-type stamped steel cages, guideless inner ring)
• Lubrication Feature: W33 (Outer ring lubrication groove and 3 oil holes)
• Material: GCr15 High-Carbon Chrome Bearing Steel

• Superior load-carrying capacity featuring a robust 22300 heavy-duty series profile with wide rollers for maximum contact area.
• Flangeless inner ring and floating guide ring (CC design) which minimizes operating friction, reduces heat generation, and optimizes roller guidance.
• Excellent self-alignment capable of managing severe mounting misalignment or shaft deflection dynamically without stress concentration.
• Integrated W33 lubrication system with a central annular groove and three oil holes on the outer ring to streamline re-greasing and cooling.

• 25+ years experience in industrial high-precision bearing manufacturing
• Exported to 50+ countries worldwide with certified reliability across heavy industries
• Rich experience in OEM & custom projects adjusting radial clearances (C3, C4) and heat-stabilization thresholds
• Strict quality inspection meticulously carried out on every product lot before packaging
• Fast response within 24 hours from our dedicated engineering and export sales teams