# Confirming S71916ACEGA/HCP4A Before the Housing Is Opened

S71916ACEGA/HCP4A is listed as a high-precision spindle angular contact bearing. Because a public millimetre sheet is thin on some catalog pages, confirm bore, outside diameter, and width against your drawing or the live product listing.

Typical duty includes machine-tool spindles that need low vibration and high running accuracy. Material on this listing is stainless steel or hybrid ceramic, as specified on the order. If your equipment sits outside that range, say so on the request rather than forcing a familiar part number.

Do not substitute a standard 71916 or a different preload/contact-angle suffix. P4 and P2 precision grades are discussed for this spindle series. Confirm preload, contact angle, and hybrid vs steel balls on the drawing.

Review S71916ACEGA/HCP4A on the TFL Bearing Made-in-China listing. Shandong TFL Bearing Co., Ltd can confirm stock, packing, and any OEM marking once the drawing or sample is attached.