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10Pcs SMR74RSCB 4*7*2.5 mm Stainless Steel hybrid Si3N4 ceramic ball bearing Without Grease Fast Turning ABEC-7
10Pcs SMR74RSCB 4*7*2.5 mm Stainless Steel hybrid Si3N4 ceramic ball bearing Without Grease Fast Turning ABEC-7
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$28.57 USD
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Specifications:
Item: SMR74RSCB-Orange
Item: SMR74RSCB-Orange
Material: 440C Stainless Steel & Si3N4 Ceramic
Structure: Deep Groove Ball Bearing
Bearing Type: Hybrid Ceramic Ball Bearing
Bore Diameter: 4mm
Outer Diameter: 7mm
Width: 2.5mm
Lubrication: Free of Grease
Magnetic: Little
Hardness: 58HRC
Corrosion Resistance: General
Clearance: C0
Bearing Grades: ABEC-7
Features:
Engineered for extreme-speed operations in compact systems, this stainless steel hybrid ceramic flanged bearing combines lightweight ceramic components with corrosion-resistant construction to deliver unmatched rotational performance and durability for the most demanding applications.
✅ Hybrid Ceramic for Ultra-High Speed & Low Friction
Featuring silicon nitride (Si3N4) ceramic balls within stainless steel races, this bearing dramatically reduces centrifugal force and friction, enabling exceptional performance at ultra-high RPMs. It is the optimal choice for critical high-speed applications such as miniature turbochargers, high-frequency spindle motors, and advanced drone propulsion systems.
✅ Dry-Design for Ultra-Clean or Custom Lubrication
Supplied without factory grease, this bearing is ready for cleanroom installation, high-vacuum use, or for pairing with specialized lubricants. This versatility makes it indispensable for semiconductor wafer handling robots, aerospace gyroscopes, and scientific instruments where contamination control is paramount.
✅ Super-Precision ABEC-7 for Critical Motion Control
Manufactured to ABEC-7 precision class standards, it guarantees near-zero vibration and exceptional running accuracy. This precision is fundamental for the stability of high-resolution optical scanners, the balance of precision grinding tools, and the flawless motion in micro-robotic actuators.
✅ Corrosion-Resistant & Sealed for Harsh Environments
Constructed from stainless steel and protected by effective seals, it offers superior resistance to moisture, chemicals, and corrosion. This ensures long-term reliability in medical handheld tools, marine navigation equipment, and food-grade processing machinery.
This advanced component is the ultimate solution for applications pushing the limits of speed and precision, enabling next-generation performance in micro-machining, extreme-environment robotics, and high-fidelity scientific instrumentation.
