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SMR74-2RS Ceramic Si3N4 ABEC-7 DRY Sealed Miniature Stainless Steel Ball Bearing 4x7x2.5
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SMR74-2RS Ceramic Si3N4 ABEC-7 DRY Stainless Steel Grade 440C 4mm x 7mm x 2.5mm 1 Ball Bearing |
SMR74-2RS Ceramic Si3N4 ABEC-7 DRY Sealed Ball Bearing, SMR74-2RS Made of stainless steel Steel, SMR74-2RS bearing is covered by a built-in rubber seal from both sides to protect the bearing from dust or any possible contamination, SMR74-2RS bearing is pre-lubricated with grease.
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💡 What Does ABEC-7 Mean?
ABEC-7 is a high-precision rating from the Annular Bearing Engineers’ Committee (ABEC), indicating extremely tight manufacturing tolerances. These bearings provide ultra-smooth, low-friction performance and are often used in high-speed, high-accuracy applications.
ABEC-7 bearings are commonly found in precision instruments, aerospace equipment, high-end electric motors, and demanding industrial machinery. They offer exceptional performance but are typically more expensive due to the level of accuracy involved.