+86-13686085021
admin@maysmeprecision.com
Products
R168, R168Z, R168ZZ, R168RS, R168-2RS Inch Miniature Deep Groove Ball Bearings 1/4"​x3/8"​x1/8" (6.35x9.525x3.175mm) – Sealed Bearings for Small Motors, Power Tools, Printers, RC Models & Precision Ma
Needle Bearing for Printing Machines
R168, R168Z, R168ZZ, R168RS, R168-2RS Inch Miniature Deep Groove Ball Bearings 1/4"​x3/8"​x1/8" (6.35x9.525x3.175mm) – Sealed Bearings for Small Motors, Power Tools, Printers, RC Models & Precision Ma

R168, R168Z, R168ZZ, R168RS, R168-2RS Inch Miniature Deep Groove Ball Bearings 1/4"​x3/8"​x1/8" (6.35x9.525x3.175mm) – Sealed Bearings for Small Motors, Power Tools, Printers, RC Models & Precision Ma

R168, R168Z, R168ZZ, R168RS, R168-2RS Inch Miniature Deep Groove Ball Bearings 1/4"​x3/8"​x1/8" (6.35x9.525x3.175mm) – Sealed Bearings for Small Motors, Power Tools, Printers, RC Models & Precision Machinery
Send Inquiry
The Quick Details

R168, R168Z, R168ZZ, R168RS, R168-2RS Inch Miniature Deep Groove Ball Bearings 1/4"x3/8"x1/8" (6.35x9.525x3.175mm) – Sealed Bearings for Small Motors, Power Tools, Printers, RC Models & Precision Machinery


The 168 series inch miniature deep groove ball bearings feature standard dimensions of 1/4"x3/8"x1/8" (6.35x9.525x3.175mm), offering higher load capacity and stability than smaller 166-series bearings—ideal for small electric motors, power tools, printers, scanners, RC vehicles, drones, and precision mechanical systems.
Available in multiple sealing configurations to suit your operating environment:
  • R168: Open type – minimal friction, ideal for clean or oil-lubricated systems
  • R168Z / R168ZZ: Single or double metal shields – reduce dust ingress while retaining factory grease
  • R168RS / R168-2RS: Single or double rubber seals – provide excellent protection against moisture, dust, and fine contaminants
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 corrosive or hygiene-sensitive applications.
These bearings support both radial and moderate axial loads, making them suitable for low-to-medium speed applications where reliability and compact design are critical.
🔧 Key Specifications:
  • Models: R168, R168Z, R168ZZ, R168RS, R168-2RS 
  • Dimensions: 3/8" × 7/8" × 5/16" (9.525 × 22.225 × 7.94 mm)
  • Material: Chrome Steel (standard); Stainless Steel optional
  • Type: Inch miniature deep groove ball bearing
  • Ideal for: Electric hand tools, model engines, office automation, small gearboxes, dental equipment

⚠️ Note: This is the R168 series. Always verify shaft and housing fit before installation.


Send us a message