RTB HSA are designed for high speed applications like tables of turning machines and of milling heads.
Differences concern axial rollers, radial filling and preload. RTB HSA are available in two different series:
RTB***HSA ungreased
The bearing is delivered without lubrication like RTB standard type.
RTB***HSA-G greased
The bearing is pre-lubricated with Lithium soap based grease approx. 25% filling.
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