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R1-5, R1-5Z, R1-5ZZ, R1-5RS, R1-5-2RS Inch Deep Groove Ball Bearings 3/32"x5/16"x9/64" (2.38x7.938x3.571mm) – Miniature Sealed Bearings for Small Motors, RC Models, Printers & Precision Instruments
Needle Bearing for Printing Machines
R1-5, R1-5Z, R1-5ZZ, R1-5RS, R1-5-2RS Inch Deep Groove Ball Bearings 3/32"x5/16"x9/64" (2.38x7.938x3.571mm) – Miniature Sealed Bearings for Small Motors, RC Models, Printers & Precision Instruments

R1-5, R1-5Z, R1-5ZZ, R1-5RS, R1-5-2RS Inch Deep Groove Ball Bearings 3/32"x5/16"x9/64" (2.38x7.938x3.571mm) – Miniature Sealed Bearings for Small Motors, RC Models, Printers & Precision Instruments

R1-5, R1-5Z, R1-5ZZ, R1-5RS, R1-5-2RS Inch Deep Groove Ball Bearings 3/32"x5/16"x9/64" (2.38x7.938x3.571mm) – Miniature Sealed Bearings for Small Motors, RC Models, Printers & Precision Instruments
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R1-5, R1-5Z, R1-5ZZ, R1-5RS, R1-5-2RS Inch Deep Groove Ball Bearings 3/32"x5/16"x9/64" (2.38x7.938x3.571mm) – Miniature Sealed Bearings for Small Motors, RC Models, Printers & Precision Instruments


The R1-5 series inch miniature deep groove ball bearings feature compact dimensions of 3/32" ID × 5/16" OD × 9/64" W (2.38x7.938x3.571mm), making them ideal for space-limited applications in small electric motors, RC cars/drones, toy models, printers, scanners, medical devices, and precision instruments.
Available in multiple sealing options to suit your environment:
  • R1-5: Open type – minimal friction, best for clean or oil-lubricated systems
  • R1-5Z / R1-5ZZ: Single or double metal shields – reduce dust ingress while retaining grease
  • R1-5RS / R1-5-2RS: Single or double rubber seals – offer superior protection against dust, moisture, and fine particles
Manufactured from high-quality chrome steel (SAE 52100) with precision grinding for smooth, quiet operation and extended service life. Stainless steel (440C) versions are available upon request for corrosion resistance.
These bearings support both radial and light axial loads, perfect for low-to-medium speed applications where reliability and compact size matter most.
🔧 Key Specifications:
  • Models: R1-5, R1-5Z, R1-5ZZ, R1-5RS, R1-5-2RS
  • Dimensions: 3/32"x5/16"x9/64" (2.38x7.938x3.571mm)
  • Material: Chrome Steel (standard); Stainless Steel optional
  • Type: Inch series miniature deep groove ball bearing
  • Ideal for: Hobby models, small DC motors, office equipment, lab instruments
⚠️ Tip: Use R1-5-2RS for dusty/humid conditions; R1-5ZZ for dry environments; open R1-5 for high-speed or custom-lubricated setups.
Each bearing is inspected for quality and packed in anti-rust packaging. Available in single units or bulk—contact us for OEM or wholesale orders!


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