Roller Kelly Bushing
Minimum Order: 0
Quality/Safety Certification: 0.00
1.roller Kelly bushing
2.HDS HDP M4 S4
3.API Spec 7K ISO9001:2008
4.GB/T 28001-2001
5.GB/T 24001-2004-ISO14001:2004
Roller kelly bushings are used for 17 1/2-49 1/2 inch rotary tables. They are designed and manufactured according to API Spec 7K.
| Type | Way of Drive | Model | Suitable for Kelly | |
Square | Hex. | |||
| Heavy | Square Drive | HDS | 21/2-6 | 3-6 |
Pin. Drive | 27-HDP | 3-6 | 3-6 | |
20-HDP | 3-6 | 3-6 | ||
| Medium | Square Drive | MDS | 21/2-41/4 | 3-41/4 |
M4 | 21/2-51/4 | 3-41/4 | ||
Pin. Drive | 20-MDP | 21/2-41/4 | 3-41/4 | |
17-MDP | 21/2-41/4 | 3-41/4 | ||
Light-duty | Square Drive | S4 | 21/2-41/4 | 3-41/4 |
