SKF 7008 CD/P4ADGA High Precision Angular Contact Ball Bearing - Duplex Set, ABEC 7-9, 40x68x15mm, 15° Contact Angle, Light Preload, Universal Arrangement - Perfect for CNC Machines, Industrial Equipment & High-Speed Applications

Product Description

The SKF angular contact ball bearing duplex set is an open bearing and has a 15-degree contact angle, phenolic cage, and Annular Bearing Engineering Committee (ABEC) 7 - 9 precision. The set of two single-row bearings supports thrust loads, and combined radial and thrust loads. When mounted in pairs back-to-back or face-to-face, the bearing arrangement is relatively rigid for bidirectional thrust loads, and has a light preload that helps provide rigidity at high speeds and helps reduce vibration and noise. This bearing is made of low-alloy, through-hardened carbon chromium steel for durability and resistance to deformity under heavy loads. The 15-degree contact angle of the balls in relation to the raceways gives the bearing a greater capacity for supporting thrust loads over bearings with a standard contact angle of zero degrees. Its open design facilitates lubricating the bearing in place and dissipating heat. This bearing has a fabric reinforced phenolic resin cage to prevent the balls from coming into contact with each other during use, reducing friction, vibration, and noise. This cage type can be used at operating temperatures up to 120 degrees C (250 degrees F). The running accuracy and performance levels for this super precision bearing meet Annular Bearing Engineers' Committee (ABEC) 9 (ISO P2) standards and the remaining features meet ABEC 7 (ISO P4) standards for a higher level of precision than bearings manufactured to normal tolerances. ABEC-rated ball bearings are manufactured to tight dimensional tolerances, making them useful in applications that require high accuracy, high rotational speeds, and increased operating efficiency. This angular contact ball bearing is for use in commercial and industrial applications including pumps and compressors, automotive drives, gearboxes, and printing machines, among others.Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.SKF manufactures bearings, seals, and lubrication systems for automotive, OEM, energy, and other and industrial applications. The company, founded in 1907, is headquartered in Gothenburg, Sweden, and meets International Organization for Standardization (ISO) TS 16949 and 9001 standards for quality assurance.