API Roller Kelly Bushing

1.Roller kelly Bushing
2.API 7K
3. Type: Heavy,Medium,Light-duty
4.style: squre and pin
5.Suitable for

1.Roller kelly Bushing
2.API 7K
3. Type: Heavy,Medium,Light-duty
4.style: squre and pin
5.Suitable for Kelly:Square and Hex

 

Roller Kelly Bushing

1.Size:17 1/2-49 1/2 inch;

2.Roller Kelly Bushings are designed and manufactured according to API Spec 7K.

3.Roller Kelly Bushings have type:Heavy,Medium,Light-duty

4.Suitable for Kelly:Square(in),Hex.(in)

 

  Roller kelly bushing is a necessary tool for drilling. It is to drive kelly spinner by matching with master bushing. Through rotating of four rollers, the friction between rollers and kelly pipe is reduced and service life is extended. For different sizes of kelly pipe and hexagonal pipe only need to change corresponding rollers. To connect with rotary table, there are two transmission styles (square and pin). The product is designed and manufactured according to API Spec 7K “Specification for Drill Equipment”.

 

 

The details are as bellow: