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

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.