What this part is:

SNR 7008CDUJ74 super-precision angular contact ball bearing, single row, universally ground, one bearing from a factory-matched universal pair. Bore Diameter: 40 mm. Outside Diameter: 68 mm. Overall Width: 15 mm. Contact Angle: 15°. Unit Quantity: 1 Pc.

Decoding the designation:

7008 — ISO 7000 series, bore code 08 gives 40 mm.

C — 15° contact angle.

DU — universally ground faces, matchable in back-to-back, face-to-face or tandem.

J74 — light preload, precision class P4 (ABEC 7).

Specifications:

Series: 7000. Number Of Rows: 1. Rolling Elements: Ball. Bearing Material: Bearing steel. Closure Type: Open. Bore Type: Straight. Contact Angle: 15°. Preload: Light. Precision Class: ABEC 7 / P4. Cage Material: Phenolic. Cage Type: Machined, outer-ring land-riding. Mounting Arrangement: Universal. Lubricant: Grease or oil.

Dimensions and mounting:

Bore Diameter: 40 mm. Outside Diameter: 68 mm. Overall Width: 15 mm. Base Number: 7008. Part Number: 7008CDUJ74. Universally ground faces let the bearing run alone or be set against another universally ground 7008C in back-to-back, face-to-face or tandem.

Compatibility and replacement:

SKF 7008 CD/P4ADGA — 15° super-precision single, universally matchable, light preload, same 40 x 68 x 15 mm envelope.

FAG B7008-C-T-P4S-UL — 15° super-precision single, universally matchable, light preload, same envelope.

Other carton designations: 7008-C-T-DUL-P4, 7008-C-DU-J74, 2MM9108WI CR DUL.

Frequently asked questions:

What is the contact angle of the SNR 7008CDUJ74?

15°, set by the C in the designation.

What preload and precision class does it have?

Light preload (J74) and precision class P4, equivalent to ABEC 7.

What is the cage material?

Machined phenolic, guided on the outer-ring land.