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60 Series
Home Deep Groove Ball Bearings 60 Series

605 ZZ Miniature Deep Groove Ball Bearing for Small Electric Motors | 5×14×5 mm

605 ZZ Miniature Deep Groove Ball Bearing for Small Electric Motors | 5×14×5 mm

The 605 ZZ is a Premium Miniature Deep Groove Ball Bearing engineered for reliable performance in compact, high-speed devices. Featuring double metal shields (ZZ) on both sides, this metric bearing offers enhanced protection against dust and debris while maintaining low running torque. With a 5mm bore, it is ideal for small motors, encoders, office automation equipment, and precision instruments where space is at a premium.

605 ZZ Deep Groove Ball Bearing 5x14x5 mm | ISO 60 Series – Extra Light | Double Shielded

Engineered as a high-precision miniature bearing based on the versatile deep groove design, this component ensures smooth and reliable high-speed operation up to 38,000 r/min (Oil). Capable of supporting radial loads and light axial loads, the 605-ZZ serves as a versatile and durable choice for a broad range of compact machinery, precision devices, and applications demanding a balance of minimal size and dependable performance.

605 ZZ Deep Groove Ball Bearing Double Shielded Miniature Bearing for Small Motors

Comprehensive Applications

Used in equipment requiring reliable performance in compact designs:

Small Motors & Drives
  • Small DC & Stepper Motors
  • Cooling Fans & Blowers
  • Micro Gearmotors
  • Servo & Spindle Axles
Office & Consumer Automation
  • Printers & Scanners
  • Optical Disc Drives
  • ATM & Vending Mechanisms
  • Home & Kitchen Appliances
Precision Instruments
  • Encoders & Optical Sensors
  • Measuring & Testing Devices
  • Laboratory & Analytical Tools
  • Medical & Dental Handpieces
General Industry
  • Small Gearboxes & Drives
  • Conveyor Guide Rollers
  • Textile & Spinning Machinery
  • Low-Power Fluid Pumps

Key Performance Features

01. Dual-Shield Protection

Fitted with double non-contact steel shields on both sides, this bearing effectively guards against dust and larger particles. The design helps maintain internal lubrication over extended periods while minimizing friction for consistent, low-torque operation.

02. Extra-Light & Compact Design

As part of the extra-light series, it features a reduced cross-section that optimizes the balance between load capacity and minimal space requirement. Its lightweight and slim profile make it especially suitable for applications where size and weight are critical constraints.

03. Smooth, Precision Performance

Manufactured to standard industrial tolerances and available in higher precision grades (up to P5), its refined internal geometry ensures exceptionally quiet and smooth rotation. This makes it ideal for sensitive, vibration-aware, and noise-controlled environments.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 60 Series – Extra Light
Basic Designation 605
Suffix ZZ (Both sides with steel shields)
Bore Diameter (d) 5 mm
Outer Diameter (D) 14 mm
Width (B) 5 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard / P5 Grade Available
Cage Material Pressed Steel Ribbon
Dynamic Load Rating (Cʳ) 1.96 kN
Static Load Rating (C₀ʳ) 0.89 kN
Limiting Speed (Grease) 30,000 r/min
Limiting Speed (Oil) 38,000 r/min
Weight (approx.) 3.8 g

Interchange Part Numbers

Direct replacement for:

  • SKF: 605-2Z
  • NSK: 605 ZZ
  • FAG: 605-ZZ
  • NMB: MR105ZZ
  • NTN: 605ZZ

Design & Configuration

The 605-ZZ features double pressed steel shields for protection on both sides. For applications that require enhanced sealing against moisture or fine dust, we also offer configurations with double rubber contact seals (605-2RS).

"For environments with higher levels of contamination or moisture, the 605-2RS with double rubber seals is the recommended choice."

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