FAG B71920-E-T-P4S-UL Spindle Bearings Spindellager 100 × 140 × 20 mm

Overview

FAG B71920-E-T-P4S-UL Spindle Bearing is a super-precision angular contact ball bearing for high-speed, high-accuracy spindle positions in machine tools. It supports low heat generation, high rigidity, and controlled preload to improve machining quality and spindle stability.

It consists of precision-ground rings, high-accuracy balls, and a high-speed cage. P4S-class accuracy and matched arrangements are used to set preload, rigidity, and running accuracy, while lubrication method strongly affects performance.

Selection guidance

Review precision class, contact angle, arrangement, preload, lubrication method, maximum speed, and required spindle rigidity.