Online

QQ

Attention

Wechat

TOP

Welcome to the website of Jiangxi Feilong Rock Bit Manufacture Co., Ltd.!

Fittings

2021-12-0126Author:Jiangxi Feilong Rock Bit Manufacture Co., Ltd.

1、Summarize

The tricone bit must be buckled in strict accordance with the operating procedures, using a standard unshackle or bit box to avoid damage to the bit or nozzle.

2、Structural features


3、Bit connection thread and recommended top-up torque

Connect thread size

Top-up torque is recommended

Ft-lbs

KN.m

2 3/8

3000-3500

4.10-4.70

2 7/8

4500-5500

6.10-7.50

3 1/2

7000-9000

9.50-12.20

4 1/2

12000-16000

16.30-21.70

6 5/8

28000-32000

37.93-43.40

7 5/8

34000-40000

46.06-54.20

4、Main Type

Shackle (matching standard API turntable adapter) size of square core connection between shackle and turntable 336.5×336.5

4 1/2-4 1/4

8 1/4-8 1/2

14 3/4

4 3/8-4 1/2

8 3/4-9

15 1/2

5 1/4-5 3/4

9 1/2-9 7/8

16

5 7/8

10 1/2-11

17-17 1/2

6-6 1/4

11 5/8-11 3/4

19

6 1/2-6 7/8

12-12 3/8

23

7 3/8-8 1/8

13 1/8-13 3/4

26

Various wheel fastenpers can be customized to customer request.