Product

An industrial chain integrating R&D, manufacturing, purchasing, sales and service

Bushing

Standard: API Spec 7K

Roller Kelly Bushings

Type

Square Kelly Size (in)

Hexagon Kelly Size (in)

HDS

2 1/2”~6”

3”~6”

27-HDP

2 1/2”~6”

3”~6”

20-HDP

2 1/2”~6”

3”~6”

4KRVS

2 1/2”~5 1/4”

3”~4 1/4”

20-MDP

2 1/2”~5 1/4”

3”~4 1/4”

17-MDP

2 1/2”~5 1/4”

3”~4 1/4”

4KRBM

2 1/2”~5 1/4”

3”~4 1/4”

Master Bushing

Type

Rotary Table Size (in)

Handing Pipe O.D (in)

MSS Solid Body and Split Body

17 1/2”

2 3/8”~8 5/8”

20 1/2”

2 3/8”~8 5/8”

27 1/2”

2 3/8”~8 5/8”

MDSP Split Body

17 1/2”

2 3/8”~8 5/8”

20 1/2”

2 3/8”~8 5/8”

MSPC Solid Body

20 1/2”

2 3/8”~13 3/8”

27 1/2”

2 3/8”~13 3/8”

MSP Split Body

27 1/2”

2 3/8”~8 5/8”

MPCH

37 1/2”

2 3/8”~13 3/8”

Casing Bushing

Type

Rotary Table Size (in)

Casing O.D (in)

CU

17 1/2” or 20 1/2”

9 5/8”~30”

CUL

26” or 27 1/2”

CB

27 1/2”

37 1/2”or 49 1/2”

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