Oilfield Wellhead Equipment PIN DRIVE ROLLER KELLY BUSHING HDP, HDS, 4KRVS
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.
Features of Roller kelly bushing:
1. Roller kelly bushing is a necessary tool for drilling.
2. 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.
3. 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).
4.The product is designed and manufactured according to API Spec 7K “Specification for Drill Equipment.
Some More Models and details:
| 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 | 21/2~51/4 | 21/2~51/4 |
| Hex | mm | 76.2~152.4 | 76.2~107.95 | 76.2~107.95 |
| in | 3~6 | 3~41/4 | 3~41/4 |
| 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 |
FAQ
1. Who are we?
Topland is an integrated supplier established in 2008. We are a global group of oilfield supplies with excellent teams in more than 5 countries. such as UAE, Kuwait, Iran and Saudi Arabia. We cooperated with ADES, ECDE, EDC, SOCAR-AQS, PDL, SAKSON, ONGC etc.
2. How can we guarantee quality?
Always a double requirements and drawing checking before the production;
Always final Inspection before shipment;
3. What can you buy from us?
Drilling rig equipment and the related spares for the oil and natural gas industries. Like Rig Components, Drawworks Spare parts and Mud Pump Spare parts, Hydraulic Disc Brake,Solids Control Equipment, Drilling and Fishing Tools,Wellhead Control Equipment,Drilling Accessories, Cementing Equipment and Tools etc.
4. Why should you choose us?
4-1. Professional & Efficient, Customer Focus, Win-win Cooperation
4-2. Fast Quote, Competitive price & within shortest lead time
4-3. Complete Range of products, like spare parts which are interchangeable with most of the well-known OEM equipment.
4-2. Order tracking service
5. How is the packing?
All the packing will meet the strict export packing requirement, we surely know how important the beautiful and firm packaging to the goods.
6. What is your terms of payment?
A: Generally by T/T, 30% advance payment, the balance 70% payment should be paid before delivery. We support EXW, FOB, FCA, CFR, CIF, CIP, DAP, DDU and DDP INCO Terms.
