6203-2RZ Sealed Deep Groove Ball Bearing for Space-Optimized Designs & Precision Mechanisms | 17×40×12 Mm

The 6203-2RZ is a Double Rubber-Sealed Light Series Deep Groove Ball Bearing engineered for applications requiring effective sealing and reliable performance in limited spaces. Fitted with two low-friction rubber seals (2RZ) on both sides, it provides excellent protection against dust, moisture, and particulate ingress while retaining lubricant efficiently. With a 17 mm bore and a compact 12 mm width, this bearing is well-suited for small motors, precision gearboxes, and light industrial equipment where environmental resistance and smooth running are vital.



6203-2RZ Deep Groove Ball Bearing 17×40×12 mm | ISO 62 Series – Light | Double Rubber Sealed

Featuring a universal deep groove design, this sealed bearing supports quiet and consistent operation at speeds up to 16,000 r/min (Oil). Capable of handling moderate radial and light axial loads, the 6203-2RZ ensures lasting sealing performance in applications that demand durability and extended service in confined or contaminated environments.

6203-2RZ Sealed Deep Groove Ball Bearing for Space-Optimized Designs & Precision Mechanisms | 17×40×12 Mm

Comprehensive Applications

Ideal for compact assemblies across multiple industries where sealing reliability and structural efficiency are essential:

Industrial & Automation
  • Encoders and Sensors

     

  • Conveyor Rollers and Guides

     

  • Packaging Machinery

     

  • Textile Spindles and Bobbins

Electric Motors & Drives
  • Small AC/DC Motors
  • Gear Motors and Reduction Drives
  • Fan and Blower Motors
  • Pump and Compressor Motors
Office & Home Appliances
  • Printers, Scanners, and Paper Handling Units

     

  • Food Processors and Mixers

     

  • Vacuum Cleaners and Power Tools

     

  • Household Ventilation Systems

Mobility & Automotive Auxiliaries
  • Alternator and Starter Motor
  • HVAC Blower Motors
  • Window Lift and Wiper Mechanisms
  • E-Bike and E-Scooter Drivetrains

Key Performance Features

01. Compact & Robust Construction

With dimensions of 17×40×12mm, this light series bearing provides an optimal balance of cross-section and load capacity, fitting seamlessly into space-sensitive designs.

02. Quiet & Efficient Operation

Precision-ground chrome steel components and controlled internal clearance ensure low noise, minimal vibration, and smooth rotation across a wide speed range.

03. Reliable Dual Rubber Seals

Non-contact rubber seals (2RZ) on both sides effectively exclude contaminants and retain lubrication, enhancing service life in dusty or humid conditions.

Technical Specifications

Bearing Type Single Row Deep Groove Ball Bearing
ISO Dimension Series 62 Series – Light
Basic Designation 6203
Suffix 2RZ (Double Rubber Non-Contact Seals)
Bore Diameter (d) 17 mm
Outer Diameter (D) 40 mm
Width (B) 12 mm
Material (Races & Balls) Chrome Steel (GCr15 / SAE 52100)
Precision Class Standard / P5 Grade Available
Cage Material Steel Stamped
Dynamic Load Rating (Cʳ) 6.10 kN
Static Load Rating (C₀ʳ) 3.15 kN
Limiting Speed (Grease) 13,000 r/min
Limiting Speed (Oil) 16,000 r/min
Weight (approx.) 45 g

Interchange Part Numbers

Common manufacturer equivalents include:

  • SKF: 6203-2RSH
  • NSK: 6203DDU
  • FAG: 6203-2RSR
  • NTN: 6203LLU
  • KOYO: 6203LLB

Design & Configuration

The 6203-2RZ is equipped with double rubber non-contact seals, making it suitable for environments where low friction and contamination resistance are needed. For higher speed requirements, the double shielded version (6203-ZZ) may be considered.

"A dependable choice for electric motors, appliance drives, and light machinery, the 6203-2RZ delivers effective sealing and consistent performance where compactness and protection are critical."


Product Tags 6203-2RZ For Electric Motors          Light Series Sealed Bearing          17x40x12mm Sealed Bearing          6203-2RZ For Gearboxes          Double Rubber Sealed Ball Bearing          Compact Sealed Bearing For Appliances         

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