SKF7013ACDP4ADGBSuper Precision Angular Contact Ball Bearing Set of 2 – Straight Bore, 65 mm ID, 100 mm OD, 18 mm Width, Open, 25° Contact Angle, Medium Preload

Product Description

What this part is

SKF 7013-ACD/P4ADGB super-precision angular contact ball bearings, supplied as a universally matchable set of two. Series: 70, extra light section. Bore: 65 mm. Outside Diameter: 100 mm. Width: 18 mm per bearing. Open on both faces, machined fabric-reinforced phenolic resin cage, steel balls on steel raceways. Searchable forms: 7013 ACD/P4ADGB, 7013ACDP4ADGB, 7013-ACD-P4A-DGB, 7013ACD/P4A DGB.

Decoding the designation

Contact Angle: 25°. Precision Class: P4A — ABEC 7 dimensional tolerance with running accuracy held to ABEC 9. Preload: medium. Cage: machined phenolic resin, rated for continuous service to 120°C.

What these specs mean in practice

A 25° contact angle carries more thrust and less speed than a 15° bearing on the same envelope, which suits spindles seeing combined radial and axial load. Per bearing: Dynamic Load Rating 39.0 kN, Static Load Rating 35.5 kN. Limiting speed: 12 000 r/min. Medium preload raises stiffness and shaft location accuracy over light preload, at the cost of more heat at speed.

Quantity and configuration

Two bearings. Unit Quantity: 2 Pcs. Universally matchable set, ground so the pair shares a common preload when clamped together. Open bearings, lubricated on installation with oil or grease.

Fitting notes

The phenolic cage sets the temperature ceiling at 120°C. Preloaded bearings run without internal clearance, so shaft and housing seats are held to super-precision tolerances. Both bearings are clamped to a common face for the ground preload to take effect.

Interchange guidance

Same-specification equivalent: FAG B7013-E-T-P4S-DUM, a medium-preload universally matched duplex pair. SKF 7013 CD/P4ADGB is a related size at a 15° contact angle. SKF 7013 ACD/P4ADGA is a related size at light preload.