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Bearing Unit WBK inquiry

Heavy load supports.

The flanged bearing units WBK 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.

The bearing units of series WBK are available in different sizes and can be delivered with different numbers of bearings according to the your requirements.

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 dimension

Part number d D D1 D2 L L1 L2 A W X Y Z d1 I V P Q 3D (STP)
WBK 15 DF 15 70 106 72 60 32 15 80 88 9 14.0 8.5 45 3 58 M5 10
WBK 17 DF 17 70 106 72 60 32 15 80 88 9 14.0 8.5 45 3 58 M5 10
WBK 20 DF 20 70 106 72 60 32 15 80 88 9 14.0 8.5 45 3 58 M5 10
WBK 25 DF 25 85 130 90 66 33 18 100 110 11 17.5 11.0 57 4 70 M6 12
WBK 25 DFD 25 85 130 90 81 48 18 100 110 11 17.5 11.0 57 4 70 M6 12
WBK 25 DFF 25 85 130 90 96 48 18 100 110 11 17.5 11.0 57 4 70 M6 12
WBK 30 DF 30 85 130 90 66 33 18 100 110 11 17.5 11.0 57 4 70 M6 12
WBK 30 DFD 30 85 130 90 81 48 18 100 110 11 17.5 11.0 57 4 70 M6 12
WBK 30 DFF 30 85 130 90 96 48 18 100 110 11 17.5 11.0 57 4 70 M6 12
WBK 35 DF 35 95 142 102 66 33 18 106 121 11 17.5 11.0 69 4 80 M6 12
WBK 35 DFD 35 95 142 102 81 48 18 106 121 11 17.5 11.0 69 4 80 M6 12
WBK 35 DFF 35 95 142 102 96 48 18 106 121 11 17.5 11.0 69 4 80 M6 12
WBK 40 DF 40 95 142 102 66 33 18 106 121 11 17.5 11.0 69 4 80 M6 12
WBK 40 DFD 40 95 142 102 81 48 18 106 121 11 17.5 11.0 69 4 80 M6 12
WBK 40 DFF 40 95 142 102 96 48 18 106 121 11 17.5 11.0 69 4 80 M6 12

Technical specification

Part number Dynamic load [kN] Max. axial load [kN] Preload [kN] Axial rigidity [N/µm] Max. starting torque [Nm] Weight [kg]
WBK 15 DF 21,9 26,6 2,15 750 0,19 1,9
WBK 17 DF 21,9 26,6 2,15 750 0,19 1,9
WBK 20 DF 21,9 26,6 2,15 750 0,19 1,9
WBK 25 DF 28,5 40,5 3,15 1000 0,29 3,1
WBK 25 DFD 46,5 81,5 4,30 1470 0,39 3,4
WBK 25 DFF 46.5 81.5 6.40 2000 0.45 4.5
WBK 30 DF 29,2 43,0 3,35 1030 0,30 3,0
WBK 30 DFD 47,5 86,0 4,50 1520 0,40 3,3
WBK 30 DFF 47.5 86.0 8.80 2050 0.52 4.3
WBK 35 DF 31,0 50,0 3,80 1180 0,34 3,4
WBK 35 DFD 50,5 100,0 5,20 1710 0,45 4,3
WBK 35 DFF 50,5 100,0 7,65 2350 0,59 5,0
WBK 40 DF 31,5 52,0 3,90 1230 0,36 3,6
WBK 40 DFD 51,5 104,0 5,30 1810 0,47 4,2
WBK 40 DFF 51,5 104,0 7,85 2400 0,61 4,7