Saifu petroleum machinery: elevators, tongs, pneumatic chuck, tooth plate
Tel: +86-0513-84161098
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Addr.: No 36 Weihe Road,New Area of Economic Development Zone,Rudong Jiangsu
Tel: 0513-84161098
Contact: Paul
Email: saifu01@sfsyjx.com
Mobile: +86-13861931500
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The roller Kelly bushings

Hit: 5223
Product Detail
Introduce :
  The roller Kelly bushings have two way of drive: the square drive and the pin drive. There are heavy, medium and light-duty according to type.
Type
Way of Drive
Model
Suitable for Kelly
Square
Hex.
Heavy
Square Drive
HDS
21/2-6
3-6
Pin. Drive
27-HDP
3-6
3-6
20-HDP
3-6
3-6
Medium
Square Drive
MDS
21/2-41/4
3-41/4
M4
21/2-51/4
3-41/4
Pin. Drive
20-MDP
21/2-41/4
3-41/4
17-MDP
21/2-41/4
3-41/4
Light-duty
Square Drive
S4
21/2-41/4
3-41/4