SKF7026 CD/P4ADGASuper Precision Angular Contact Ball Bearing Pair – Straight Bore, 130 mm ID, 200 mm OD, 33 mm Width, Open, 15° Contact Angle, Light Preload, Universally Matchable.

Product Description

What this part is

SKF 7026 CD/P4ADGA super-precision single-row angular contact ball bearing, supplied as a universally matchable pair. Bore: 130 mm. Outside diameter: 200 mm. Width: 33 mm per bearing. Series: 70. Contact angle: 15°. Precision class: P4A, equivalent to ABEC 7. Open on both faces.

Decoding the designation

CD: 15° contact angle in SKF’s D-design high-capacity execution. P4A: super-precision tolerance and running-accuracy class. DGA: light preload on a universally matchable set, so any two bearings of this designation pair correctly straight from stock.

What these specs mean in practice

The 15° angle favours speed and radial stiffness over thrust capacity, the usual choice for machine-tool spindles and precision screw drives. Dynamic load rating: 148 kN (33,300 lbf). Static load rating: 156 kN (35,100 lbf). Limiting speed: 6,300 rpm. Maximum operating temperature: 120 °C. Weight: 7.00 lb per bearing. The machined phenolic cage is outer-ring-land-riding, light in mass and quiet at speed, and suited to oil-air and oil-mist lubrication.

Quantity and configuration

Two bearings, matched as a light-preload pair. The ground ring faces set the preload as soon as the rings are clamped, with no spacer grinding.

Fitting notes

Shaft seat to h5 and housing bore to H6 or closer preserve the P4A running accuracy. Clamping loads are applied evenly across the ring faces so the ground offsets establish the preload.

Interchange guidance

Equivalent 15° light-preload super-precision executions: Fafnir 2MM9126WI-CR-DUL, NSK 7026CTYNSULP4, FAG B7026-C-T-P4S-UL. Punctuation variants: 7026CDGA/P4A, 7026 CD/P4A DGA, 7026-CD-P4A-DGA, 7026CDP4ADGA.