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- Sales@chinadrillingrigs.com
- 11807 Westheimer Rd, Houston, TX 77077, USA
Roller Kelly bushing
Roller Kelly bushing
A roller Kelly bushing is a key component used in drilling operations, specifically in rotary drilling rigs. It is designed to connect the drill string (the long pipe that transmits drilling fluid and rotational force) to the rig’s rotary table.
Product Introduction
- Roller Design: The bushing typically incorporates rollers or bearings that allow smooth rotation, reducing friction and wear.
- Compatibility: Designed to fit over the Kelly (a special type of drill pipe) and engage with the rotary table, ensuring a secure connection.
- Durability: Made from high-strength materials to withstand the harsh conditions encountered during drilling, including heavy loads and high torque.
- Ease of Installation: Can be easily installed and removed, allowing for quick changes in drilling operations.
Product Parameters
| Model | CDR | CDR | CDR | CDR | CDR | CDR | CDR | CDR |
| Kelly | 2 1/2″ | 2 7/8″ | 4″ | 4 1/4″ | 4 1/2″ | 5 1/4″ | 5 1/2″ | 6″ |
| Kelly type | square, hexagonal | |||||||
| Drive | square,pin | |||||||
| max torque (N.m) | 1700-2700 | |||||||