JEREH INTERNATIONAL

BUSHINGS

Master Bushing

Technical Specification for Master Bushing

Master Bushing Type Rotary Table Size (in) Handling Tubular OD (in)

MSS

Square driving-Split

171/2 (18)

23/8 ~ 85/8

201/2

23

271/2

Square driving-Integral

171/2 (18)

201/2

22

23

271/2 23/8 ~ 103/4

MSPC Pin Driving-integral

201/2

23/8 ~ 85/8 23

271/2

MDSP Pin Driving-split

171/2

23/8 ~ 85/8 18

201/2

MSP Pin Driving-split 23

23/8 ~ 85/8 271/2

MPCH Pin Driving 371/2 23/8 ~ 133/8

Roller Kelly Bushing

Technical Specification for Roller Kelly Bushing

Bushing Model Bushing Type Way of drive Square(in) Hex(in)

HDS

Heavy

Square drive 3~6 3~6

27-HDP Pin drive 3~6 3~6

20-HDP Pin drive 3~6 3~6

Master bushing is casted with high-quality alloy steel as per API 7K Spec. Two kinds of master bushing are available: pin drive and square drive. The size range of master bushing is from171/2 to 371/2 inch.

Roller Kelly Bushings are used for 171/2~491/2 inch rotary tables. Jereh provides API 7K certified roller Kelly bushings. Three types of bushing are available: Heavy, Medium, light-duty.

JEREH INTERNATIONAL

RTM4

Medium

Square drive 21/2~51/4 3~41/4

20-MDP Pin drive 21/2~41/4 3~41/4

17-MDP Pin drive 21/2~41/4 3~41/4

RTS4 Light-duty Square drive 21/2~41/4 3~41/4

CB, CU, CUL Casing Bushing

Technical Specification for Casing Bushing

Rotary

Table

Casing (in)

Model 23/8~85/8 95/8~103/4 113/4~133/8 16 185/8~20 24 26 30

171/2~ 201/2

CU Body: 3102 Insert bowl: 1809 Body: 3102

Insert bowl: 1902 Body: 3102 - - - - -

271/2 CUL Body: 3103+3105 Insert bowl: 1809

Body: 3103+3105Insert bowl: 1902

Body: 3103+3105

Body: 3103+3105

Body: 3103 - - -

371/2 CB

Body: 6695+6126A

Insert bowl: 6115

Body: 6695+6126A

Insert bowl: 6114

Body: 6695 Insert bowl:

6126A

Body: 6695Insert bowl:

6127

Body: 6195 - - -

Body: 20+6126A Insert bowl: 6115

Body: 20+6126AInsert bowl: 6114

Body: 20 Insert bowl:

6126A

Body: 20 Insert bowl:

6127 Body: 20 Body: 24

Body: 26

Body: 30

Master Bushing Accessories ADD: No. 5 Jereh Road, Laishan District, Yantai, P.R.China

TEL: +86-535-672 8251

FAX: +86-535-672 3292

E-MAIL: petroleum@jereh.com

WEB: www.jereh.com www.jereh-oilfield.com

Bit breaker adapter plates are located in the master bushing drive pin holes and provide a 139/16 inch square to match bit breakers. Lifting sling for removing and installing master bushings and insert bowls with hooks.

Master Bushing Accessories

Casing bushing is combined by bushing body and insert bowls. It is suitable for handling casing less than 30 in. There are two types: solid bushing and split bushing. CU and CUL are solid bushing, and CB is split bushing.

JEREH INTERNATIONAL