R188 Hybrid
R188 Hybrid
R188 Hybrid
R188 Hybrid

R188 Hybrid

$3.50 USD

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R188 Hybrid

8-Ball Si3N4 Ceramic Precision Bearing

Engineered for high-performance EDC enthusiasts, the R188 Hybrid combines a stainless steel race with premium Si3N4 ceramic balls. This specific 8-ball configuration delivers a superior balance of silence, smoothness, and rotational feedback. Ideal for premium fidget spinner upgrades or precision instrument modification where low friction is paramount.

Core Features

  • Hybrid Ceramic Architecture: Features a 440C Stainless Steel race paired with Black Si3N4 Ceramic Balls. The ceramic material is harder, lighter, and smoother than steel, significantly reducing friction for extended spin times.
  • Precision 8-Ball Configuration: Unlike standard 10-ball setups, the 8-ball design optimizes the gap tolerance. This eliminates the "gritty" feeling often found in cheaper bearings, providing a fluid and satisfying tactile feedback.
  • Open Cage Design: The crown cage construction allows for easy maintenance. It runs cleaner by preventing dust accumulation and is fully accessible for air or solvent cleaning.

Specifications

Model R188 Hybrid
Ball Material Si3N4 Black Ceramic
Ball Count 8 Balls
Structure Material Stainless Steel (440C)
Cage Type Crown Cage / Open
Lubrication Supplied Dry (Oil-free)

Usage & Maintenance Guide

• Run Dry: This bearing is designed to operate without lubrication. Adding oil or grease will significantly reduce spin times and attract dust.

• Cleaning: If spin times decrease or the bearing feels rough, it is likely due to dust. Use compressed air (canned air) to clear debris. For deep cleaning, soak in high-purity alcohol or warm soapy water, then dry thoroughly with a hair dryer.

• Break-in Period: A short break-in period may be required for the bearing to reach its maximum smoothness and silence.