API 7K Roller Kelly Bushing Used for 171/2" - 49 1/2" Rotary Table

• Customization: Available
• After-sales Service: on Line
• Warranty: 1 Year
• Model NO.: HDS/HDP/RTM4/RTS4
• Surface Treatment: Without Processing
• Operation Pressure: Vacuum
• Material: Nylon
• Transport Package: Wooden Case
• Specification: 2 1/2′′-6′′
• Trademark: Strong
• Origin: Jiangsu. China
• HS Code: 8431431000
• Production Capacity: 200 Set/Sets Per Month

Product Description

 

              API 7K Roller Kelly Bushing Used for 171/2" - 49 1/2" Rotary Table

       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 tables. They are designed and manufactured according to API Spec 7K.

 

Product Parameters

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

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FAQ

 

The information you may like to know before order:
 1. Methods of Payment:
  T/T (Telegraphic Transfer) sor Western Union or L/C at sight
2. Handling time for an order
   (1). Based on order quantity, normally it takes 20 days for production.
   (2). Only 2 or 3 days if we have stock on your request size.
3. Shipping way
  (1).Sample order: we suggest Courier express like DHL/UPS/TNT/FEDEX or by air
 (2) .Bulk order: we suggest by air or by sea.
4. Quality Control
  (1).We have our own experienced QC.
  (2) .There will be strict inspection and testing for every order before shipping out.
5. After Services:
  1. Our sales team will response for your question within 24 hours (Holidays Excluded)
  2. Technical Support will be available in any time
  3. Free replacement will provide once the failure confirmed caused by our product quality