Rotary Deck Bushing

Short Description:

Rotary Deck Bushing is a two-piece bearing assembly which replaces the friction or non-rotating bushing which sits in the deck of a blast hole drill. The inner bearing race of the rotary bushing will rotate with the drill steel when sufficient surface contact is made by the rotating drill steel as it passes through the centre bore of the bushing.


Product Detail

Product Tags

Product overview导航栏

This rotating bushing assembly has 3 bearing races that allow for the inner sleeve to rotate within the outer body. TDS deck bushing provides high performance combined with longer service life. This type of deck bushing is used primarily in rotary applications where the rotation speed is considerably higher than that of a DTH application.

We can supply deck bushings for these models, as below:

  • DM45-50-DML, DMH/DMM/DMM2, DMM3, Pit Viper 235, Pit Viper 271, Pit Viper 351
  • MD 6240/6250, MD 6290, MD 6420,MD 6540C, MD 6640
  • 250XPC,285XPC, 320XPC, 77XR
  • D245S, D245KS, D25KS, D45KS, D50KS, D55SP, D75KS, D90KS, DR440, DR460 461

Specification导航栏

 Drill Pipe OD(MM)    Deck Bushing OD(MM)    Flange Diameter (MM)/Type
102 254 305mm w/2 x Slots
114 254 305mm w/2 x Slots
114 254 356mm w/1 x Flat
127 254 305mm w/2 x Slots
127 254 356mm w/1 x Flat
140 254-330 305-406mm w/2 x Slots
152 254 356mm w/1 x Flat
159 254-330 305-406mm w/2 x Slots
165 254-330 305-406mm w/2 x Slots
178 286-330 305-406mm w/1 or 2 x Slots or 1x Flat
194 286-330 305-406mm w/1 or 2 x Slots or 1x Flat
219 286-406 305-482mm w/1 or 2 x Slots or 1x Flat
235 330-406 406-482mm w/Slots or Flat
273 381-406 400-432mm w/ Flat only
340 432 550mm w/2 x Slots

When ordering or requesting a quotation, please specity:

Drill Rig Make & Model No. ; Drill Pipe OD; Deck Hole Diameter; Flange Plate Thickness, Flange Plate Configuration (lugs, squares, flats dimensions and location); Lifting Eyes required? Specifial Requests

An independent OQC team performs final inspections and document checks before shipment.


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