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Roller Kelly Bushing
4KRBM Roller Kelly Bushings
- Type:Roller Kelly Bushing
- CAS No:
- Qty in 20' FCL:
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- Packaging:
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Model
Type
Drive way
applicable size of kelly（in）
Square
Hex
HDS
Heavy duty
Square drive
21/2-6
3-6
27-HDP
Pin drive
21/2-6
3-6
20-HDP
21/2-6
3-6
RTM4
Medium duty
Square drive
21/2-51/4
3-41/4
RTS4
Light duty
21/2-41/4
3-41/4
- Roller Kelly Bushings can be classed as two types based on different ways of drive, square drive and pin drive. Also they can be classed as three types based on different style, heavy, medium and light-duty. They are used for 17.1/2 to 49.1/2inch rotary t
