625 ZZ Miniature Deep Groove Ball Bearing for Measuring Devices | 5×16×5 mm

The 625-ZZ Bearing For Office Automation is a Premium Miniature Deep Groove Ball Bearing engineered for reliable performance in compact, precision devices. Featuring double metal shields (ZZ) on both sides, this metric bearing provides enhanced protection against dust and contaminants while maintaining low friction torque. With a 5mm bore, it is ideal for small motors, precision instruments, office automation, and applications requiring a compact yet protected bearing solution.



625 ZZ Deep Groove Ball Bearing 5x16x5 mm | ISO 62 Series – Extra Light | Double Shielded

This premium miniature bearing utilizes a universal deep groove geometry to deliver exceptional smoothness and stability in high-speed applications, supporting speeds up to 38,000 r/min (Oil). It is designed to handle both radial and light axial loads, providing reliable and precise performance in compact precision instruments, small motor spindles, and delicate mechanical assemblies where operational smoothness and space efficiency are paramount.

625 ZZ Deep Groove Ball Bearing Double Shielded Miniature Bearing

Comprehensive Applications

Supports compact and slim designs across multiple sectors:

Small Motors & Drives
  • Small DC & Stepper Motors
  • Axial & Cooling Fans
  • Micro Gearmotors
  • Servo & Small Motor Axles
Office & Consumer Devices
  • Printers & Scanners
  • Optical Media Drives
  • Cash & Ticket Dispensers
  • Compact Home Appliances
Precision Instruments
  • Encoders & Position Sensors
  • Precision Gauges & Meters
  • Lab & Testing Equipment
  • Medical & Diagnostic Tools
General Industry
  • Compact Gearboxes
  • Light-Duty Conveyor Rollers
  • Textile Spindles & Bobbins
  • Low-Flow Pump Systems

Key Performance Features

01. Reliable Dual-Shield Defense

Featuring double non-contact steel shields that provide effective protection from both sides against dust and larger particulate contaminants. This design helps retain lubrication for longer service life while ensuring very low rotational resistance.

02. Compact & Lightweight (Extra Light Series)

The extra-light series design delivers a minimal cross-section, balancing good load capacity within compact dimensions. Its small footprint makes it well-suited for applications where space and weight are critical constraints.

03. Smooth, Low-Vibration Operation

Built to standard industrial tolerances and offered in higher precision grades (up to P5), the optimized internal geometry promotes quiet, smooth rotation with minimal vibration—ideal for sensitive instruments and precision mechanisms.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 62 Series – Extra Light
Basic Designation 625
Suffix ZZ (Both sides with steel shields)
Bore Diameter (d) 5 mm
Outer Diameter (D) 16 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.) 3.2 g

Interchange Part Numbers

Direct replacement for:

  • SKF: 625-2Z
  • NSK: 625 ZZ
  • FAG: 625 ZZ
  • NMB: MR105ZZ
  • NTN: 625ZZ

Design & Configuration

The 625-ZZ comes standard with double pressed steel shields for contamination protection on both sides. Where moisture or fine dust sealing is required, the double rubber contact seal variant (625-2RS) is available as an alternative.

"In applications exposed to higher contamination or humidity, the 625-2RS with double rubber seals is recommended for improved sealing and durability."



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