Kelly Bushing Square Drive
Kelly Bushing Square Drive
Spectrum Drilling Tools International manufactures Square Kelly Bushings suitable for 17.5”, 20.5”, 27½”, and 37½” Square Drive Master Bushings. These Square Kelly Bushings can handle Square or Hex Kelly sizes ranging from 3″ to 6″. We also offer NOV equivalent Kelly Bushings. Square Drive Kelly Bushings are designed for heavy-duty drilling operations in high torque conditions, whether in offshore or onshore drilling operations.
We offer Square Drive Kelly Bushings in three sizes of Master Bushings:
1. 27 SDHD for 27½” / 37½” Master Bushing.
2. 20 SDHD for 20½” Master Bushing.
3. 17 SDHD for 17½” Master Bushing.
Features & Benefits
Kelly Bushings manufactured by Spectrum Drilling Tools International are designed, manufactured, and tested in accordance with the requirements of API-7K Specification (latest edition). They are supplied with the API-7K Monogram, ensuring that they meet the highest industry standards for quality and performance.
Spectrum’s API-7K License for Kelly Bushings has been held for over 23 years and counting.
- Spectrum’s Kelly Bushings are equivalent to NOV’s HDP Kelly Bushings.
- Kelly Bushings can accommodate different sizes of Kelly, whether they are Hex or Square, ranging from 3 inches to 6 inches. This flexibility is achieved by changing the necessary rollers and wiper assembly.
- Estimated Design life : 10 Years
- Kelly Bushings are manufactured with strict adherence to HSE (Health, Safety, and Environment) guidelines to ensure the safety of personnel and equipment during drilling operations.
- Effortless Master Bushing Installation.
- Quick and Simple Spare Replacement.
- Products undergo Non-Destructive Testing (NDE) for Quality Assurance.
- Fastest delivery of both capital equipment and spares within the 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 |
13 | Sleeve Bush | 04 No. | 2719 |
14 | Thrust Washer | 08 No. | 2720 |
15 | Lifting Sling (Four Hooks Type) | 01 No. | 2721 |
Optional Products
