R20 ZZ RICH 31,7x57,15x12,7

R20 ZZ RICH – Deep Groove Ball Bearing 31.7x57.15x12.7 mm (Metal Shielded)

Technical Specifications

• Model: R20 ZZ
• Brand: RICH
• Type: Single row deep groove ball bearing
• Inner Diameter (ID): 31.7 mm
• Outer Diameter (OD): 57.15 mm
• Width: 12.7 mm
• Internal Clearance: CN (standard)
• Sealing: Double metal shields (ZZ)
• Weight: 0.12 kg

The R20 ZZ RICH bearing is a reliable choice for applications that require steady performance and smooth rotation over time. Its dimensions make it well suited for medium-sized mechanical assemblies, where a balance between strength and efficiency is important.

Instead of full contact seals, this model uses metal shields on both sides. This design helps limit the entry of dust and debris while keeping rotational resistance low, making it particularly suitable for systems that operate at higher speeds in relatively clean environments.

With standard internal clearance and a solid overall construction, it performs consistently under normal working conditions and supports continuous operation without unnecessary friction or instability.

Key Features

Smooth and efficient rotation: designed to reduce friction and support stable running.

Metal shield protection (ZZ): helps protect internal components while maintaining speed capability.

Balanced design: suitable for a wide range of mechanical and industrial uses.

Reliable operation: consistent performance in everyday working conditions.

Applications

• Belt-driven systems and pulleys
• Electric motors and ventilation units
• Gearboxes and transmission components
• Industrial machinery and workshop equipment
• High-speed applications with low friction requirements