High-Speed Miniature Router Bits with Precision Ball Bearings
Ultra-smooth 693ZZ/R-830ZZ bearings feature durable plastic retainers for reduced friction, ensuring flawless high-speed rotation in dental grinding and micro-machining.
Hardened steel 3x8x4mm bearings deliver exceptional wear resistance, ideal for prolonged use in CNC routers, engraving tools, and precision rotary equipment.
The compact design enables seamless integration into tight-spaced dental handpieces and industrial micro-drills, minimizing vibration for surgical-level accuracy.
Pre-lubricated for maintenance-free operation, these bearings outperform standard models with 30% higher RPM tolerance in high-torque applications.
Direct OEM replacement for Dremel, Proxxon, and Foredom systems – trusted by dental labs and jewelry makers for detail work requiring sub-millimeter precision.






























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Excellent, good
Jun.22.2024

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Super fast shipping! Wasn't expecting my package for another 3 days, yet it was at my door much sooner than that. I love it
Jan.23.2024

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High Speed Miniature Router Bits Ball Bearing 3x8x4mm 693ZZ R-830ZZ Plastic Retainer Ball Bearings for Dental grinding machine
$0.29
Brand Name:
CVH
Outside Diameter:
693ZZ(3x8x4mm)
Quantity:
Add to Cart
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