Inner Toothed 278790G2 Four-point Contact Ball Slewing Rings
The 278790G2 bearing is a four point contact slewing ball bearing with an inner diameter of 440 mm , an outer diameter of 654.8 mm, a width of 92 mm. It typically uses P0, P6, P5, P4, P2 grade precision tolerances and features a Nylon/steel/copper cage, GCr15 balls, GCr15 rings. open type, NBR. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Application: Cranes, Aerial lifts, Excavators, Wind turbines, Utility derricks, Log loaders and feller bunchers, Grapples, Mining equipment
inner toothed 278790G2 four-point contact ball slewing rings
structure:single row slewing ball bearing
gear option:inner gear
material:42crmo/50mn/custom
D(outer diameter, outer ring O.D.):654.8mm
da(inner diameter, inner ring I.D.):440mm
T(overall height):92mm
G(weight):117kg
D1(external bolt circle diameter):626mm
d1(internal bolt circle diameter):478mm
n2,n3(number of holes, per hole circle):8-M8, 8-M16
m(module):4
Z(teeth no.):112
Luoyang MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Certificated has 3.1,3.2,ABS,CCS.Our team with technical and full experience in the bearing industry. And with a worldwide network, allows us to resolve any bearing issue for you. LYMC bearings are the perfect alternative to the most common and well-known brands.
Four-point contact ball slewing turntable bearings consist of two ring seats. Compact structure, light weight, steel ball and arc track contact at four points, can bear axial force,radial force and overturning moment at the same time, has strong dynamic load.
Packaging:
1.Filling with anti-rust oil
2.Corved with Plastic paper
3.Corved with kraft paper
4.Corved with Blue tie
5.Put in wooden box
Any interests or inquiry, please contact us freely~
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