Varco type Roller kelly bushing from China manufacturer

Price:	1000.0 USD
Payment Terms:	T/T
Place of Origin:	Shaanxi, China (Mainland)


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Product Detail

Means of Transport: Land,Air

Packing: for sea shipping

Certification: API 7K

Production Capacity: 100sets/month

Delivery Date: 10~30days

Roller kelly bushing Varco type

This king of bushing is the necessary product of driling rig. It matches with the master bushing to drive the kelly. This product rotates the kelly through four rollers to reduce the friction thus extend its working life. This product has square drive and pin drive two forms. It can match with different type of kelly by changing the rollers. It is designed and manufactured according the API SPEC 7K Standard, and have the certificate of authority to use the official API monogram.

Type	Way of Drive	Model	Suitable for Kelly
Type	Way of Drive	Model	Square	Hex.
Heavy	Square Drive	HDS	21/2-6	3-6
	Pin.Drive	27-HDP	3-6	3-6
	Pin.Drive	20-HDP	3-6	3-6
Medium	Square Drive	MDS	21/2-41/4	3-41/4
	Square Drive	RTM4	21/2-51/4	3-41/4
	Pin.Drive	20-MDP	21/2-41/4	3-41/4
	Pin.Drive	17-MDP	21/2-41/4	3-41/4
Light-duty	Square Drive	RTS4	21/2-41/4	3-41/4