POTAIN MC80 tower crane slewing bearings with high quality, material 50Mn QT, 42CrMo QT.
POTAIN MC80 slewing bearings work for tower crane.external gear ball slewing ring bearing 
2IE.024.00 , 2IE.031.00 , 2IE.031.10 , 2IE.031.20 , 2IE.034.00, 2IE.035.00 , 2IE.040.00 , 2IE.043.00 , 2IE.043.10, 2IE.045.00, 2IE.050.00 , 2IE.052.00 , 2IE.058.00 , 2IE.059.00 , 2IE.064.00, 2IE.069.00 , 2IE.074.00 , 2IE.083.00 , 2IE.086.00 , 2IE.095.00, 2IE.097.00 , 2IE.103.00 , 2IE.109.00 , 2IE.114.00 , 2IE.120.00, 2IE.121.00 , 2IE.128.00 , 2IE.135.00 , 2IE.140.00 , 2IE.143.00
ball slewing bearing with inner gears
2DI.036.00 , 2DI.042.00 , 2DI.043.00 , 2DI.043.10 , 2DI.049.00 , 2DI.050.00 , 2DI.057.00 , 2DI.059.00 , 2DI.069.00 , 2DI.070.00 , 2DI.083.00 , 2DI.086.00 , 2DI.091.00, 2DI.091.10, 2DI.095.00 , 2DI.095.10, 2DI.100.00, 2DI.101.00 , 2DI.101.10, 2DI.104.00, 2DI.105.00, 2DI.105.10, 2DI.106.00, 2DI.108.00 , 2DI.114.00 , 2DI.115.00, 2DI.116.00, 2DI.117.00 , 2DI.121.00 , 2DI.125.00, 2DI.128.00 , 2DI.129.00, 2DI.135.00, 2DI.136.00, 2DI.138.00 , 2DI.139.00, 2DI.142.00, 2DI.145.00 , 2DI.147.00 , 2DI.147.10 , 2DI.153.00 
Four point contact ball slewing ring parts without gear
2CS.030.00 , 2CS.030.10 , 2CS.032.00 , 2CS.035.00 , 2CS.038.00 , 2CS.039.00 , 2CS.040.00 , 2CS.044.00 , 2CS.045.00 , 2CS.047.00 , 2CS.048.00 , 2CS.048.10 , 2CS.055.00 , 2CS.061.00 , 2CS.062.00 , 2CS.062.10 , 2CS.069.00, 2CS.071.00, 2CS.071.10 , 2CS.074.00 , 2CS.080.00 , 2CS.081.00 , 2CS.090.00 , 2CS.090.10 , 2CS.091.00, 2CS.101.00 , 2CS.113.00 ,2CS.116.00