High-Precision Miniature Deep Groove Ball Bearing
Premium P5-grade stainless steel construction ensures smooth operation and extended service life under high-speed rotations. Ultra-thin 4x9x4mm design ideal for compact spaces in precision instruments and micro machinery.
Advanced Sealed Lubrication Technology
Pre-lubricated with high-performance grease for minimal friction and maintenance-free operation. Shielded design prevents dust contamination while retaining optimal lubricant integrity.
Versatile Industrial-Grade Applications
Perfect for dental tools, optical equipment, small motors, and robotics requiring micron-level accuracy. Heat-treated raceways withstand radial/axial loads in automation systems.
Wholesale-Optimized Bulk Supply
Factory-direct pricing for industrial buyers purchasing multiple units. Certified identical replacements for L-940ZZ/684ZZ bearings with full dimensional compatibility.
Quality Assurance Guarantee
Laser-engraved part numbers enable flawless traceability. Electropolished surfaces reduce wear particles in cleanroom environments. Vacuum-sealed individual packaging prevents corrosion.






























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L-940ZZMTR P5P24LY121 L-940ZZ miniature deep groove ball bearing 684ZZ size 4x9x4mm
$0.83
Brand Name:
LLH or as your request
Outside Diameter:
9mm
Quantity:
Add to Cart
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