Product parameters

• QIBR No. Q2780DBD101t
• NSK No.2780DBD101t
• Bearing Type Double-Row Ball Slewing
• Closure Type Double Seal
• Bearing Material 42CrMo, 50Mn, Stainless Steel
• Seal Material FPM, NBR

Load Capacity

• Tangential force(Fr)256.5KN
• Related axial static load(Fa)19440KN

Gear teeth

•  Pitch diameter of gear(D0)2816mm
• Tooth modulus(m)22mm
•  Number of teeth(z)128
• Tooth width(b)175mm

Overall Dimensions

• Inside diameter of inner ring (Di)2780.6mm
• Outside diameter of outer ring(Da)3255mm
• Internal diameter on outer ring(Oa)3032mm
• External diameter on inner ring(Oi)3020mm
• Inner ring width(h)178mm
• Overall width(H)222mm
• Weight(w)2549.5kg

Mounting Holes of Outer Ring

• Bolt circle Dia. (La)3185mm
• Number of holes (Za)68
• Diameter(da)39

Mounting Holes of Inner Ring

• Bolt circle Dia. (Li)2960mm
• Number of holes (Zi)68
• Diameter(di)M36
• Hole depth(t1)70
• Hole depth(t2)60