1/4P SMR74 2RS CB 4X7X2.5 ABEC7 Stainless Steel Hybrid Ceramic Ball Bearing MR63 MR84 MR85 MR95 MR105 MR115 MR117 MR126 MR137

440C Stainless Steel Hybrid Ceramic Ball Bearings with Si3N4 Balls – ABEC-7,
Oil-Free Zero Drag & Corrosion Resistant for Fishing Reels, 3D Printers & High-Speed Spindles

Built for speed, wet environments, and zero maintenance — combining 440C stainless steel rings
with Si3N4 ceramic balls for fishing reels, 3D printers, high-speed spindles, and power tools.

• ABEC-7 Precision, Smooth & Quiet

Ground to ABEC-7 tolerances for accurate, stable rotation with low noise and minimal vibration at high speeds.

• Si3N4 Ceramic Balls – Lighter, Harder, Cooler
Around 30% lighter and harder than steel, ceramic balls generate less friction and heat, allowing faster
rotation and reduced wear on the races.

• 440C Stainless Steel Rings, 58HRC Hardened
High-carbon AISI 440C rings deliver excellent wear resistance, dimensional stability, and resistance
to freshwater & light salt spray.

• Non-Contact Orange Seals + Oil- & Grease-Free, Zero Extra Drag
Non-contact orange rubber seals keep out dust and debris without rubbing the rings, and with no oil
or grease inside, the bearing spins freely without any excess drag — for a smoother, maintenance-free service life.

• Low Magnetic, C0 Clearance, Wide Use
Low magnetism and standard C0 clearance ensure stable performance in fishing reels, 3D printers,
high-speed spindles, power tools, and more.