Model Number: B70C/AC-2RZHQ1 Brand Name: ZYS Key Specifications/Special Features: When machine tool spindle runs under highly polluted condition, solid contaminants or cooling fluid entering the bearings is the main cause of bearing premature failure. Thereby the lubricant efficiency will be reduced, while bearing temperature will rise and abrasion will be accelerated. To solve the above problems effectively, ZYS produces a kind of sealed ball bearing, the high-speed sealed angular contact ball bearings with lifelong and clean lubrication grease.The application of High-speed sealed angular contact ball bearings for machine tool:(1). High speed metal cutting spindle (machining center, high-speed milling machine)(2). CNC lathe(4). Conventional milling machine(5). High speed wood-working machines spindleBearing dimensions and technical parameters The ZYS precision angular contact ball bearings for spindles, have four size series,718, 719, 70 and 72. With the same inner diameter, the outer diameters and the widths of 718, 719, 70 and 72 series increase in turn.
ZYS precision angular contact ball bearing with 15°(C) and 25°(AC) contact angles. As for the angular contact ball bearings, the bigger the contact angle is, the greater the axial load capacity is, but the lower the limited speed of bearings becomes. Therefore, the spindle, with high speed and small axial load, should adopt the 15°angular contact ball bearings, whereas the 25°angular contact ball bearing should be adopted.
Types and performances of angular contact ball bearings
ZYSprecision angular contact ball bearings with high-speed angular contact bearings (standard series), super-speed angular contact ball bearings, high-speed sealed angular contact ball bearings and high-speed spindle bearings.
ZYS Luoyang Bearing Science And Technology Co.,ltd.
ZYS Tenet:To lead the science and technology development of bearing industry and to improve theworld's equipment level.
ZYS Spirit:To keep continuous improvement, to pursue brilliance.
ZYS Core values:Integrity, rigor, innovation, mutual benefit.
ZYS was formerly known as Luoyang bearing research institute, which was founded in 1958 and was the only first-class comprehensive research institute in China bearing industry. As it became one member of China National Machinery Industry Corporation in 1999, the former institute was transformed into the science