... and reasonable prices 2. ISO9001-2000 certificate approved, Four-Point Contact Ball Slewing Ring BearingAs SOCARE BEARING one main ... compact conformation, light weight, the Steel Balls are Four Point Contacting with the arc Raceway, it can bear both Axdial ... as metallurgy, vessel, oil, chemistry, mine, coal, hydroelectric power, port machinery, heavy machinery and aerospace or some other fields ...