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

• After-sales Service: 7X24
• Warranty: 12months
• Manufacturing Process: CNC Milling
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: HDP HDS RTM RTS MDS MDP
• Surface Treatment: Spray-Paint
• Operation Pressure: Manual
• Material: Steel
• Standard: API 7K
• Transport Package: Wooden Box
• Specification: 2-1/2"-5-1/4”
• Trademark: LFM
• Origin: China
• HS Code: 8430
• Production Capacity: 1000sets/Year

Product Description

Product Description

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

Roller kelly bushings can be classified as two types based on different ways of drive, square drive and pin drive. Also they can be classified 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		HDS	27-HDP	20-HDP	MDS	20-MDP	17-MDP	LDS
Type		Heavy			Medium			Light
Max. torque	N.m	32365			22555			13729
	ft.lbf	23871			16636			10126
Drive Mode		Square	Pin		Square	Pin		Square
Square	mm	76.2~152.4			63.5~133.35			63.5~133.35
	in	3~6			2^1/2~5^1/4			2^1/2~5^1/4
Hex	mm	76.2~152.4			76.2~107.95			76.2~107.95
	in	3~6			3~4^1/4			3~4^1/4
Size	mm	630*630*740	630*630*780		493*493*696	510*510*720	458*458*700	508*508*700
	in	24.8*24.8*29.1	24.8*24.8*30.7		19.4*19.4*27.4	20*20*28.3	18*18*27.5	20*20*27.5
Weight	Kg	700	730	670	420	460	340	400
	lb	1540	1610	1470	924	1012	750	808

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FAQ

Q1: What's your packing?
A:  Regular packing.

Q2: What's your delivery?
A:  Normally, about 30-45 days.

Q3:  What are the shipping methods?
A: Ocean shipment to the port near from you; Air shipment to the shipment near from your company; Door to door service by  international express.

Q4:  What about the payment options?
 A: In general, we accept T/T. 

Q5:  When can I get the price?
A: We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in  your  email so that we will detail with your inquiry priority.