Product Details

API spec. Roller Kelly Bushing/Pin, Square Drive Roller Kelly Bushings/drilling kelly bushing in oilfield

Product Description

1. Details:

1) Model: HDS, HDP, MDP, 4KRVS, 4KRBM

2) Size: 17 1/2~49 1/2 inch

3) API Spec 7K

Roller Kelly bushing ia a necessary tool tor drilling by matching with the rotary square to drive Kelly pipe. The product can reduce its friction with Kelly by rotation of four rollers and extend its service life. Changing different rollers to match with different square and hexagonal Kelly pipes and connect with different rotary tables. Two transmission styles (square and pin connect) are available.

2. Roller Kelly Bushings:

1) Our company produce the roller kelly bushings are used for 17 1/2 to 49 1/2 inch. Rotary tables

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)

Technical parameter

Type	Style	Way of Drive	Suitable for Kelly
Type	Style	Way of Drive	Square(in)	Hexagon.(in)
HDS	Heavy	Square Drive	21/2-6	3-6
27-HDP		Pin Drive	21/2-6	3-6
20-HDP		Pin Drive	21/2-6	3-6
4KRVS	Medium	Square Drive	21/2-51/4	3-41/4
20-MDP		Pin	21/2-41/4	3-41/4
17-MDP		Pin	21/2-41/4	3-41/4
4KRBM	Light-Weight	Square Drive	21/2-41/4	3-41/4

Packaging & Shipping

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