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63 Series
Home Deep Groove Ball Bearings 63 Series

6322 ZZ Single-Row Deep Groove Ball Bearing For Heavy Industrial Equipment | 110x240x50 mm

6322 ZZ Single-Row Deep Groove Ball Bearing For Heavy Industrial Equipment | 110x240x50 mm

The 6322 ZZ is a heavy-duty Single-Row Deep Groove Ball Bearing engineered for reliable performance in large-scale industrial applications. Featuring a standardized deep groove raceway design, this metric bearing is built to accommodate very high radial loads while also handling moderate axial loads in both directions. With a 110 mm bore, it is an essential component for heavy electric motors, large pumps, industrial gearboxes, and mining equipment requiring robust load support and operational stability.

6322 ZZ Deep Groove Ball Bearing 110x240x50 mm | 6300 Series | Double Shielded Design

A robust industrial bearing utilizing the proven deep groove geometry to deliver high radial load capacity and smooth rotational performance. Engineered for consistent operation at speeds reaching 3,900 r/min with grease lubrication. The 6322 ZZ is manufactured from high-quality chrome steel to withstand continuous operation in demanding environments, making it a trusted component for heavy machinery and power transmission systems.

6322 ZZ  Heavy-duty Single-Row Deep Groove Ball Bearing For Heavy Industrial Equipment | 110×240×50 mm

Comprehensive Applications

This large-frame bearing is ideally suited for a broad spectrum of heavy industrial equipment:

Heavy Machinery & Industrial Processing
  • Paper Mill Roller Supports
  • Steel Mill Equipment
  • Industrial Mixer & Agitator Shafts
  • Large Material Handling Systems
Mining & Aggregate Processing
  • Crusher Shaft Supports
  • Vibrating Screen Mechanisms
  • Conveyor Head Pulley Bearings
  • Aggregate Processing Equipment
Industrial Gear Drives & Transmissions
  • Large Gear Reducer Output Shafts
  • Industrial Transmission Supports
  • Heavy-Duty Pump Drives
  • Mill Gearbox Applications
Heavy-Duty Electric Motors & Generators
  • Large AC/DC Electric Motor Bearings
  • Industrial Generator Main Shafts
  • High-Volume Fan & Blower Rotors
  • Pump & Compressor Drives

Key Performance Features

01. Exceptional Load Carrying Capacity

As a large-format 63-series bearing, the 6322 ZZ delivers outstanding radial load capacity with a dynamic load rating of 205 kN. Manufactured from high-purity chrome steel (GCr15/SAE 52100), its robust construction ensures excellent durability and resistance to wear under continuous heavy loads, guaranteeing extended service life in the most demanding conditions.

02. Integral Protection with Double Shields

This variant comes standard with double metal shields (ZZ) , providing effective protection against the ingress of dust, debris, and contaminants while retaining lubricating grease for maintenance-free operation. The shielding design minimizes friction while extending bearing life in dirty environments.

03. Precision Engineering for Smooth Operation

Manufactured to standard industrial precision tolerances (P0), the 6322 ZZ ensures consistent quality and reliable performance. The precision-ground deep raceway grooves and high-grade steel balls facilitate stable, vibration-free rotation, contributing to efficient power transmission and reduced noise levels in heavy machinery.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 03 Series (63)
Basic Designation 6322
Suffix ZZ (Double Shielded)
Bore Diameter (d) 110 mm
Outer Diameter (D) 240 mm
Width (B) 50 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class ABEC 1 / ISO P0 (Standard); ABEC 3 Available
Cage Material Pressed Steel Ribbon
Dynamic Load Rating (Cʳ) 205 kN  
Static Load Rating (C₀ʳ) 178 kN
Limiting Speed (Grease) 3,900 r/min
Limiting Speed (Oil) 5,500 r/min 
Weight (approx.) 9.5 kg

Interchange Part Numbers

Direct replacement and cross-reference for industry standard part numbers:

  • SKF: 6322-2Z
  • NSK: 6322ZZ
  • FAG: 6322.2ZR
  • NTN: 6322ZZ
  • KOYO: 6322ZZX
  • Timken: 6322-ZZ   

Design & Configuration

While the 6322 ZZ is supplied as standard with double shields, the base open design allows for customization to meet specific operational requirements:

• Double Shield (6322-ZZ / 2Z): Standard configuration. Provides excellent protection and grease retention for general industrial use.

• Double Seal (6322-2RS / 2RS1): For enhanced protection against moisture and fine contaminants in harsh environments.

• Open Bearing (6322): For high-speed applications requiring oil lubrication.

• Increased Clearance (6322 ZZ C3): Recommended for applications where interference fits or temperature differentials may reduce internal clearances.

"For heavy electric motors, large industrial gearboxes, and mining equipment, the 6322 ZZ delivers reliable, high-capacity bearing performance. Specify seal suffixes or C3 clearance to match your specific operating environment."

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