Sonoff 2 Unisex Square Flange Linear Ball Bearing D30mm Gcr15 Steel Abrasion Resistant High Precise Flange Linear Motion Bushing

Sonoff 2

Square Flange Linear Ball Bearing D30mm Gcr15 Steel Abrasion Resistant High Precise Flange Linear Motion Bushing.Feature: 1. HIGH HARDNESS: The flange linear ball bearing is made of Gcr15 bearing steel with heat treatment process, has high hardness and strong bearing capacity. 2. STANDARD AND PRECISE: The linear motion ball bearing is exquisitely made with high precise and smoothly surface, easy to install. 3. HIGH SPEED: The flange linear motion bushing has low noise, low friction and high rota