SKF7213CP4DGASuper-Precision Angular Contact Ball Bearings – 65 mm ID, 120 mm OD, 23 mm Width, 15° Contact Angle, Open, Light Preload, 2 Pcs

Product Description

What this part is

SKF 7213 C/P4 DGA super-precision angular contact ball bearings. Bore: 65 mm. Outside diameter: 120 mm. Width: 23 mm. Series: 72. Single-row, open, universally matchable spindle bearings. The carton also carries the Fafnir designation 2MM213WI CR DUL for the same size and class.

Decoding the designation

7213: series 72, bore code 13, 65 mm bore. C: 15° contact angle. P4: ABEC 7 precision. DGA: light preload on a universally matchable bearing. The Fafnir cross reads the same way – 2MM = 15°, CR = phenolic outer-ring-land-riding cage, DUL = duplex universal light preload.

What these specs mean in practice

A 15° contact angle favours speed and radial stiffness; light preload keeps running friction and heat generation down, which is what a high-speed grinding or milling spindle needs. Basic dynamic load rating: 66.3 kN. Basic static load rating: 53 kN. Limiting speed: 11,000 rpm. Operating temperature range: -30 to +120 °C, set by the phenolic cage.

Quantity and configuration

Two pieces, 2 Pcs. Universally matchable bearings, so the pair mounts back-to-back, face-to-face or in tandem without a spacer and the preload comes out as ground.

Fitting notes

Straight bore, open on both faces. Oil lubrication suits the light-preload high-speed duty. Rings locate against square shoulders and the outer rings are clamped by the housing cover.

Interchange guidance

FAG B7213-C-T-P4S-DUL and NSK 7213CTYNSULP4 are the same 65 x 120 x 23 mm size at 15° with light preload. Timken/Fafnir 2MM213WI CR DUL is the Fafnir designation for it. 7213 ACD/P4A is a related size at a 25° contact angle. Searchable forms: 7213CP4DGA, 7213 C/P4 DGA, 7213-C-P4-DGA, 7213 CDGA/P4A.