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10PCS S6702ZZCB 15x21x4 mm ABEC-7 Ceramic Bearing Stainless Steel Hybrid Ceramic Bearing Without Grease Fast Turning
10PCS S6702ZZCB 15x21x4 mm ABEC-7 Ceramic Bearing Stainless Steel Hybrid Ceramic Bearing Without Grease Fast Turning
Regular price
$35.71 USD
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$0.00 USD
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$35.71 USD
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Specifications:
Item: S6702ZZ CB
Structure: Deep Groove
Bearing Material: 440C Stainless Steel
Ball Material:Ceramic Si3N4
Bearing Type : Hybrid ceramic ball bearing
Bore Dia (d): 15mm
Outer Dia (D): 21mm
Width (B): 4mm
Closures: Metal Shielded(ZZ)
Lubrication: Free of Grease Free of Runing
Magnetic: little
Hardness: 58HRC
Corrosion Resistance: General
Clearance: C0
Bearing Grades: ABEC 7
Features:
Engineered for those who demand perfection in motion, this premium hybrid ceramic bearing redefines the limits of speed, smoothness, and reliability. Designed for high-performance applications across fishing reels, precision motors, drones, and performance machinery, it eliminates the friction and instability that hold systems back — replacing hesitation with effortless momentum and control.
✅ Frictionless Spin for Lightning-Fast Acceleration
At its core lies a revolutionary hybrid design: high-grade stainless steel races paired with ultra-smooth silicon nitride (Si₃N₄) ceramic balls. The result? Drastically reduced rotational mass and near-zero rolling resistance. Spools launch instantly, motors spin freely, and drivetrains respond with immediacy — harnessing every ounce of input energy into pure, unimpeded motion. Perfect for high-RPM environments where split-second responsiveness defines success.
✅ Eliminate Heat & Wear for Long-Lasting Precision
Traditional steel bearings generate heat under load, leading to expansion, micro-wear, and performance decay. With non-conductive, corrosion-resistant ceramic balls that resist deformation and eliminate cold welding, this bearing operates cooler and lasts significantly longer. Experience consistent performance over time — even under aggressive use — without degradation in smoothness or rotational accuracy.
✅ Ultra-Clean, Fast-Turning Design for Maximum Responsiveness
Shipped without grease, these bearings are optimized for users who prefer lightweight lubricants or application-specific tuning. The clean, dry state allows for immediate customization — whether you're applying ultra-thin oil for maximum speed or specialty coatings for environmental resistance. The result is a truly personalized performance curve, engineered exactly how you need it.
✅ Silent, Balanced Rotation for Unmatched Control
Precision-machined to ABEC-7 tolerances, every component meets exacting standards for sphericity, surface finish, and dimensional accuracy. Dual ZZ metal shields protect against dust and debris while minimizing drag — ensuring long-term reliability without sacrificing speed. A whisper-quiet, vibration-free spin that enhances sensitivity and feedback, turning subtle inputs into precise, predictable motion.
When internal resistance fades, your equipment stops working against you — and starts moving with you. Whether you're skipping a jig beneath a dock, fine-tuning a drone motor, or optimizing a high-speed reel, this bearing delivers a new level of synergy between intent and action.
