Kelly Bushing Square Drive

kelly bushing square drive

Kelly Bushing Square Drive

Autobahn Industries make Square Kelly Bushings suitable for 17.1/2” / 20.1/2” / 27.1/2” / 37.1/2” Square Drive Master Bushings. It can handle Square or Hex Kelly sizes from 3″ to 6″. We have NOV equivalent Kelly Bushings. This Kelly Bushings are used for heavy-duty drilling operations in high torque conditions at off-shore as well as on-shore drilling operations. 

Square Drive Kelly Bushings are available in three sizes of Master Bushings. 

  • 27 SDHD for 27.1/2” / 37.1/2” Master Bushing.
  • 20 SDHD for 20.1/2” Master Bushing. 
  • 17 SDHD for 17.1/2” Master Bushing.

Features & Benefits

API Standard
  • Kelly Bushings are designed, manufactured & tested conforming to the requirement of API-7K Specification (latest edition) and supplied duly API-7K Monogrammed. 

  •  Autobahn Industries holds API-7K License for Kelly Bushing for the last 23 years and counting.

Design Features
  • Autobahn make Kelly Bushings are equivalent with NOV make HDP Kelly Bushing. 
  • Kelly Bushing can be used for different sizes of Kelly i.e. Hex or Square from 3” to 6” by changing the requisite Rollers, wiper assembly.
  • Estimated Design life : 10 Years
Health, Safety and Environment
  • Kelly Bushings are manufactured considering the HSE guidelines.
  • Easy Installation into the Master Bushings.
  • Spares can be easily replaced. 
  • Products are passed through Non Destructive Testing (NDE) to ensure the best quality products are manufactured.
Lead Time
  • Fastest delivery of Capital Equipment as well as spares within shortest lead time.

Part No.

Kelly Size / Type SDHD Roller Assembly Complete ABI P/N Identical VARCO P/N
3" Hex
2701-S
2101
3667
3.1⁄2" Hex
2702-S
2102
2102
4.1⁄4" Hex
2703-S
2103
3669
5.1⁄4" Hex
2704-S
2104
3672
6" Hex
2705-S
2105
3673
3" Sq.
2706-S
2106
3660
3.1⁄2" Sq.
2711-S
2110
3661
4.1⁄4" Sq.
2707-S
2107
3662
5.1⁄4" Sq.
2708-S
2108
3665
6" Sq.
2709-S
2109
3666

Part List

S. No. Description Qty. Per Unit SDHD
1
Kelly Bushing Body less roller assembly
01 No.
2710-S
2
Hold down bolt
04 No.
2711
3
Hold down bolt lock screw
04 No.
2711-A
4
Nut for hold down bolt
04 No.
2712
5
Lock washer for nut
04 No.
2713
6
Drive pin with washer
04 No.
--
7
Wrench
01 No.
2715
8
Wiper assembly
01 No.
2716
9
Wiper Retainer Plate
01 No.
2716-B
10
Wiper Retainer Plate Screw
08 No.
2716-C
11
Roller Pin
04 No.
2717
12
Roller Bearing
04 No.
2718
Sleeve Bush
04 No.
2719
13
Thrust Washer
08 No.
2720
14
Lifting Sling (Four Hooks Type)
01 No.
2721

Optional Products

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