Detailed description
factory OEM 31-20 1800/2-06730 machine tools thriple row roller bearing turntable swing circle gear ring
Bearing No. 31-20 1800/2-06730
Bearing structure
external gear three row roller slewing bearing
Bearing material
42CrMo/50Mn/C45
Da:2044.8mm
di:1653mm
Di:1832mm
da:1830mm
G:844kgs
La:1905mm
Li:1705mm
n:46
do:2000mm
m:16
z2:125
x2:+0.50
fz norm:163kN
fz max:285kN
Co rad:854kN
Co axT:10631kN
Co axH:6376kN
C rad:481kN
C axT:1668kN
C axH:1224kN
Bearing warranty
1 year
Service
OEM
Application
construction equipment, automation machine,industry equipments.
Operating conditions
Permissible temperature range -25°C to +70°C
Maximum permissible rotational speed nperm = 20000 / DL
(DL = raceway diameter)
“Compressive” load Bolt grade 10.9
Typical applications
Heavy harbour cranes, shipboard cranes, ladle turrets and grab cranes, radar antennas, wind energy turbine main bearings, tunnel boring machines and loading buoys (oil, gas swivels), machine tools (in general where the application requires high duty cycles).
Characteristics
• High precision
• Highest axial load capacity
• Especially high tilting moment load capacity
• High rigidity
• Long service life
The products we manufacture are as follows:
1.Single row four point contact slewing bearing
2.double row ball bearing
3.three row roller bearing
4.cross roller slewing bearing
Any interests or inquiry, please feel free to contact us.













