Royal “Oil Country” Big-Bore Bull Head Live Centers
- Designed specifically for machining large diameter pipes for the oil and gas industry, but suitable for all large-bore applications.
- In contrast to standard bull head live centers, the modular head design of Royal “Oil Country” Big-Bore centers positions the workpiece closer to the bearing assembly for greater rigidity and longer operating life.
- Interchangeable heads are relieved to achieve the optimal strength/mass ratio, and are sized to cover a wider range of bore sizes with fewer models.
- Bearing configuration consisting of a heavy-duty tapered roller bearing, a large axial thrust bearing, and two precision needle bearings provides exceptional accuracy and rigidity under the most demanding production conditions.



5 MT Specifications
TAPER | PART NUMBER |
B | G | J | SUGGESTED RPM* |
WORKPIECE (LBS.) |
LOAD (LBS.) |
---|---|---|---|---|---|---|---|
5 MT | 10791 | 4.62 | 1.63 | 5.31 | 2,050 | 4,500 | 2,650 |
5 MT | 10792 | 7.37 | 4.38 | 4.59 | 1,300 | 4,500 | 2,650 |
5 MT | 10793 | 10.12 | 7.13 | 4.59 | 950 | 4,500 | 2,650 |
5 MT | 10794 | 12.87 | 9.88 | 4.59 | 750 | 4,500 | 2,650 |
5 MT | 10795 | 15.62 | 12.63 | 4.59 | 600 | 4,500 | 2,650 |
6 MT Specifications
TAPER | PART NUMBER |
B | G | J | SUGGESTED RPM* |
WORKPIECE (LBS.) |
LOAD (LBS.) |
---|---|---|---|---|---|---|---|
6 MT | 10791 | 4.62 | 1.63 | 6.57 | 2,050 | 11,000 | 3,500 |
6 MT | 10792 | 7.37 | 4.38 | 5.85 | 1,300 | 11,000 | 3,500 |
6 MT | 10793 | 10.12 | 7.13 | 5.85 | 950 | 11,000 | 3,500 |
6 MT | 10794 | 12.87 | 9.88 | 5.85 | 750 | 11,000 | 3,500 |
6 MT | 10795 | 15.62 | 12.63 | 5.85 | 600 | 11,000 | 3,500 |
Royal “Oil Country” Big-Bore Bull Head Live Centers
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Taper | PART NUMBER | PRICE | |
---|---|---|---|
5 MT |
10782 |
$1,945
|
|
6 MT |
10784 |
$2,850
|
Head not included. Order separately.
Royal Modular Heads for Big-Bore Bull Head Live Centers
Filters
Sort results
Reset
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Head Model | B | G | Head Weight (LBS.) | PART NUMBER | PRICE | |
---|---|---|---|---|---|---|
A |
4.62 |
1.63 |
7 |
10791 |
$938
|
|
B |
7.37 |
4.38 |
18 |
10792 |
$1,450
|
|
C |
10.12 |
7.13 |
33 |
10793 |
$2,250
|
|
D |
12.87 |
9.88 |
51 |
10794 |
$3,215
|
|
E |
15.62 |
12.63 |
65 |
10795 |
$5,605
|