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60 Series
Home Deep Groove Ball Bearings 60 Series

6011-ZZ Metal Shielded Deep Groove Ball Bearing | Efficient Rotation Design | 55×90×18 mm

6011-ZZ Metal Shielded Deep Groove Ball Bearing | Efficient Rotation Design | 55×90×18 mm

The 6011-ZZ is a reliable, Double Metal Shielded Single-Row Deep Groove Ball Bearing engineered for applications demanding reduced friction and consistent rotational performance. Equipped with dual pressed steel shields (ZZ), this bearing retains factory lubrication while minimizing torque loss during operation. Measuring 55 mm in bore, 90 mm in outer diameter, and 18 mm in width, it falls within the 6000 "Extra Light" ISO series, offering a streamlined radial profile ideal for assemblies where space optimization matters.

6011-ZZ Deep Groove Ball Bearing 55×90×18 mm | ISO 6000 Series – Extra Light | Double Metal Shields (Non-Contact)

Manufactured with precision-honed raceways and hardened chrome steel balls, the 6011-ZZ ensures dependable operation in conditions requiring moderate particle protection without sacrificing speed. The shield design keeps lubricant contained while allowing heat to dissipate efficiently, making it well-suited for electric drives and power transmission systems. This bearing handles considerable radial forces plus moderate axial loads in either direction, serving as a trusted component for enclosed mechanical assemblies.

6011-ZZ Metal Shielded Deep Groove Ball Bearing | Efficient Rotation Design | 55×90×18 mm

Comprehensive Applications

The 6011-ZZ supports diverse industries requiring balanced protection and rotational efficiency:

Industrial Motors & Drives
  • Three-Phase Motor End Covers
  • Servo Motor Shaft Supports
  • Variable Frequency Drive Spindles
  • Brake Motor Assemblies
Agricultural Machinery
  • Grain Auger Drive Shafts
  • Seeder Metering Wheels
  • Sprayer Pump Rotors
  • Baler Knotter Mechanisms
Automotive Components
  • Engine Accessory Pulleys
  • Power Steering Pump Bearings
  • Air Conditioning Compressors
  • Tensioner Idler Wheels
General Manufacturing
  • Assembly Line Conveyor Rollers
  • Pneumatic Tool Spindles
  • Welding Positioner Turns
  • Automation Robot Joints

Key Performance Features

01. Reduced Friction Operation (ZZ Shield Type)

The 6011-ZZ incorporates non-contact steel shields that eliminate seal drag, resulting in lower operating temperatures and improved energy efficiency. This configuration excels in continuous-run applications where heat management directly impacts system reliability.

02. Compact Cross-Section (6000 Series Design)

As an Extra Light series bearing, the 6011 provides a thinner outer ring compared to 6200 or 6300 series options with matching bore sizes. Engineers benefit from reduced housing dimensions while maintaining sufficient load capacity for most industrial requirements.

03. Pre-Greased for Extended Service

Filled with quality lithium-based grease at the factory, the dual shields work together to prevent lubricant loss and block external debris. This sealed construction supports long maintenance intervals in applications where regular bearing access is limited.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 60 Series – Extra Light Duty
Basic Designation 6011
Suffix ZZ (Double Metal Shields)
Bore Diameter (d) 55 mm
Outer Diameter (D) 90 mm
Width (B) 18 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard (P0) / P6 or P5 Available Upon Request
Cage Material Riveted Steel Cage
Dynamic Load Rating (Cʳ) 28.5 kN
Static Load Rating (C₀ʳ) 26.5 kN
Limiting Speed (Grease) 7,500 - 8,000 r/min
Limiting Speed (Oil) 9,000 r/min
Weight (approx.) 0.26 kg

Interchange Part Numbers

Industry-standard equivalents from recognized bearing manufacturers:

  • SKF: 6011-2Z
  • NSK: 6011ZZ
  • FAG: 6011-2ZR
  • NTN: 6011ZZ
  • KOYO: 6011ZZ
  • Nachi: 6011-2ZE
  • TIMKEN: 6011ZZ

Design & Configuration

The 6011-ZZ uses stamped steel shields fitted into the outer ring groove for secure retention. Standard units ship with CN (Normal) internal clearance, while C3 (Increased Clearance) versions suit high-temperature motor environments where thermal expansion occurs. Applications needing enhanced contamination defense may opt for the rubber-sealed (2RS) alternative available in our inventory.

"The 6011-ZZ combines compact dimensions with efficient shielding, delivering a practical bearing solution for machinery where speed, space, and protection must work together seamlessly."

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