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Bearing Unit SBK inquiry

Heavy load supports.

The flanged bearing units SBK consist of a solid steel housing. Because of the used angular contact ball bearings with a 60° contact angle the bearing units can absorb heavy axial loads.

High rigidity and a minimum axial clearance is the result of the preload of the bearings by the housing and the cover plate. All bearing units are shipped with sealing, washers and lock nut.

Advantages:

  • High accuracy
  • High stiffness
  • Heavy load applications due to 60° contact angle
  • Suitable for heavy load applications, such as ballscrew supports for machine tools




Main dimensions

Part number Ball
screw
d A h H1 L L1 B d1 E X Y Z I 3D (STP)
SBK-25-DF 32 25 89 51 53 66 71 160 57 130 18 26 2 4
SBK-25-DFD 32 25 89 51 53 81 71 160 57 130 18 26 2 4
SBK-30-DF 40 30 89 51 53 66 71 160 57 130 18 26 2 4
SBK-30-DFD 40 30 89 51 53 81 71 160 57 130 18 26 2 4
SBK-35-DF 40 35 96 52 54 66 71 160 69 130 18 26 2 4
SBK-35-DFD 40 35 96 52 54 81 71 160 69 130 18 26 2 4
SBK-40-DF 50 40 96 52 54 66 71 160 69 130 18 26 2 4
SBK-40-DFD 50 40 96 52 54 81 71 160 69 130 18 26 2 4

Technical specification

Part number Dynamic
capacity [kN]
Max. axial
force [kN]
Preload [kN] Axial
rigidity [N/µm]
Starting
torque [Nm]
M D3 L3 Weight [kg]
SBK-25-DF 29.1 41.5 3.2 1000 0.29 M25x1.5 45 20 4.46
SBK-25-DFD 47.0 83.0 4.4 1500 0.40 M25x1.5 45 20 5.25
SBK-30-DF 29.8 44.0 3.4 1050 0.30 M30x1.5 50 20 4.35
SBK-30-DFD 48.5 88.0 4.6 1550 0.40 M30x1.5 50 20 5.09
SBK-35-DF 31.5 51.0 3.9 1200 0.35 M35x1.5 55 22 4.57
SBK-35-DFD 51.5 102.0 5.3 1750 0.46 M35x1.5 55 22 5.30
SBK-40-DF 32.5 53.0 4.0 1250 0.37 M40x1.5 60 22 4.60
SBK-40-DFD 52.5 106.0 5.4 1850 0.67 M40x1.5 60 22 5.15