ball support

基本解释

Rolling material support ball is set, to minimize fish tail with sheet bar and to reduce frictional resistance.
滚动托料球，减少板料划伤，并可减少摩擦阻力。
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The high rigid main axle structure, coordinates the ultra precise drift angle ball bearing support localization, may make the heavy cut processing.
高刚性主轴结构，配合超精密之斜角滚珠轴承支撑定位，可作重切削加工。
This includes the high-speed Robust series of bearings, together with data on conventional angular contact bearings, thrust bearings, cylindrical roller bearings and ball screw support bearings .
这包括高速稳健一系列的轴承，连同数据的常规角接触轴承，推力轴承，圆柱滚子轴承和滚珠丝杠轴承支持。

Indeed, it's the support at the ball of the foot that gave my pair their distinct feel.
FORBES: The Sole of Stefano Bemer