B71940-E-T-P4S-UL

Designed primarily for machine tool spindles and high-capacity industrial equipment, the FAG B71940-E-T-P4S-UL is a super-precision single-row angular contact ball bearing engineered to balance rigid axial support with high-speed stability. This specific model measures 200mm in bore diameter, 280mm outer diameter, and 38mm in width. The B71940-E-T-P4S-UL employs a 25-degree contact angle, making it highly effective at handling combined radial and axial loads while significantly minimizing vibration. Inside the B71940-E-T-P4S-UL, an outer-ring-guided textile laminated phenolic resin cage keeps heat generation low, enabling reliable operations up to a limiting speed of 4,000 rpm with grease or 6,300 rpm under oil-air lubrication. FAG builds the B71940-E-T-P4S-UL to its proprietary P4S tolerance standard, which matches ABEC-7 dimensional limits with stricter ABEC-9 running accuracy to secure minimal operational runout. As a single universally matchable bearing with a light preload, it allows engineers to field-configure sets in back-to-back, face-to-face, or tandem mounting layouts without complex adjustments.

We provide sea and air freight services for large bearings, and international express shipping services for small bearings.

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