SKFS7024ACDP4ADGCAngular Contact Ball Bearing — Sealed Super-Precision P4A, Matched Pair, 120 mm ID, 180 mm OD, 28 mm Width, 25° Contact Angle, Moderate Preload

Product Description

What this part is

SKF S7024 ACD/P4ADGC matched pair of super-precision, high-capacity, sealed single-row angular contact ball bearings supplied at moderate preload. Bore Diameter: 120 mm. Outside Diameter: 180 mm. Overall Width: 28 mm per bearing. Total Width: 56 mm for the pair. Contact Angle: 25°. Preload: Moderate. Precision Class: P4A. Rolling Elements: Ball. Bore Type: Straight. Seal Type: Non-contact seals both sides. Lubricant: Grease. Design: High-capacity D. Contact Type: Normal contact, two-point. Ring Type: One-piece inner and outer rings. Cage Type: Outer-ring shoulder-guided. Bearing Material: Bearing steel. Item Weight: 4.25 kg (9.37 lb) for the matched pair.

Decoding the designation

S — SKF’s sealed super-precision execution. The bearing carries integral non-contact seals on both sides and leaves the factory grease filled.

70 — ISO light dimension series 10. A 120 mm bore carries a 180 mm outside diameter in a 28 mm section.

24 — bore code. 24 × 5 = 120 mm.

AC — 25° contact angle. The higher angle carries more axial load and raises axial stiffness.

D — high-capacity internal design.

GC — universally matchable, moderate preload.

P4A — SKF super-precision tolerance class: P4 dimensional accuracy with running accuracy held tighter still.

What these specs mean in practice

Preload: Moderate. SKF’s published matched condition for this set, giving higher axial and radial stiffness than a light preload setting.

Dynamic Load Rating: 178,000 N. Static Load Rating: 232,000 N. Both figures are SKF’s published ratings for the matched pair, not for a single bearing. The pair rating sets bearing life at speed and the permanent-deformation limit at rest.

Contact Angle: 25°. Radial load is carried together with axial load. Contact Type: Normal contact, two-point. Ring Type: One-piece inner and outer rings.

Seal Type: Non-contact seals both sides. Lubricant: Grease. The seals retain the factory grease charge and keep contamination out of the raceways, and being non-contact they add no rubbing torque, so running speed is unaffected by the sealing.

Mounting data

Mounting Arrangement: universally matchable back-to-back, face-to-face or tandem. Bore Type: Straight. Overall Width: 28 mm per bearing, Total Width: 56 mm mounted as a pair. Item Weight: 4.25 kg (9.37 lb) for the matched pair. Harmonization Code: 8482.10.50. eCl@ss Code: 23-05-08-04. UNSPSC Code: 31171531. Carbon Footprint: 15.7 kg CO2e.

Quantity and configuration

Unit Quantity: 2 Pcs. Number Of Bearings In Set: 2. Matched Arrangement: Universal matching. SKF supplies this designation as a matched set of two bearings, ground together so either face pairing gives moderate preload.

Interchange guidance

Same 120 x 180 x 28 mm envelope, same 25° angle, same super-precision class: Timken/Fafnir 3MM9124WICRDUH, FAG B7024-E-T-P4S-UH, NSK 7024A5TRDUHP4, RHP 7024X3TRDUHP4.

Those four are open executions. This one carries integral non-contact seals and arrives grease filled, which is the distinguishing feature of the S prefix and the reason to specify it where a spindle is built without an external sealing arrangement.