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R20, R20Z, R20ZZ, R20RS, R20-2RS Inch Deep Groove Ball Bearings 1-1/4"x2-1/4"x1/2" (31.75x57.15x12.7mm) – Heavy-Duty Sealed Bearings for Large Motors, Pumps, Industrial Fans, Gearboxes & Machinery
Needle Bearing for Printing Machines
R20, R20Z, R20ZZ, R20RS, R20-2RS Inch Deep Groove Ball Bearings 1-1/4"x2-1/4"x1/2" (31.75x57.15x12.7mm) – Heavy-Duty Sealed Bearings for Large Motors, Pumps, Industrial Fans, Gearboxes & Machinery

R20, R20Z, R20ZZ, R20RS, R20-2RS Inch Deep Groove Ball Bearings 1-1/4"x2-1/4"x1/2" (31.75x57.15x12.7mm) – Heavy-Duty Sealed Bearings for Large Motors, Pumps, Industrial Fans, Gearboxes & Machinery

R20, R20Z, R20ZZ, R20RS, R20-2RS Inch Deep Groove Ball Bearings 1-1/4"x2-1/4"x1/2" (31.75x57.15x12.7mm) – Heavy-Duty Sealed Bearings for Large Motors, Pumps, Industrial Fans, Gearboxes & Machinery
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R20, R20Z, R20ZZ, R20RS, R20-2RS Inch Deep Groove Ball Bearings 1-1/4"x2-1/4"x1/2" (31.75x57.15x12.7mm) – Heavy-Duty Sealed Bearings for Large Motors, Pumps, Industrial Fans, Gearboxes & Machinery


The R20 series inch deep groove ball bearings feature standard dimensions of 1-1/4"x2-1/4"x1/2" (31.75x57.15x12.7mm), offering high radial and moderate axial load capacity—ideal for heavy-duty industrial applications such as large electric motors, water/oil pumps, industrial blowers, gear reducers, agricultural equipment, and conveyor systems.
Available in multiple sealing configurations to suit your operating environment:
  • R20: Open type – minimal friction, ideal for clean or oil-lubricated systems
  • R20Z / R20ZZ: Single or double metal shields – reduce dust ingress while retaining factory grease
  • R20RS / R20-2RS: 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 washdown environments.
These bearings are engineered for reliability in medium to high-speed operations where durability, load capacity, and consistent performance are critical.
🔧 Key Specifications:
  • Models: R20, R20Z, R20ZZ, R20RS, R20-2RS
  • Dimensions: 1-1/4"x2-1/4"x1/2" (31.75x57.15x12.7mm)
  • Material: Chrome Steel (standard); Stainless Steel optional
  • Type: Inch series deep groove ball bearing
  • Ideal for: Large industrial motors, pump shafts, HVAC fans, gear drives, farm & construction machinery
⚠️ Tip: Use R20-2RS in wet/dusty conditions; R20ZZ for dry indoor use; open R20 for high-speed or custom-lubricated setups.
Each bearing undergoes strict quality inspection and is packed in anti-rust packaging. Available in single units or bulk—contact us for OEM or wholesale orders!

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