1. Product name: Miniature single direction thrust ball bearing. 2. Product material: 1) chrome steel SAE 52100, 2) stainless steel SUS440C, 3) Nylon PA66. 3. Product quality: ABEC-1, ABEC-3. 4. M means that axial race and housing race have a groove. 5. Product brand: Neutral brand, OEM service is welcome. 6. Product packing: Plastic tube and / or single box + carton + wooden case.
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