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.
Proudly Made In USA
Heavy-Duty CNC Spindle Type Live Center Sizing Schematic

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

Filters Sort results
Reset Apply
Taper
PART
NUMBER
PRICE
5 MT
10782
$1,534
6 MT
10784
$2,253

Head not included. Order separately.

Royal Modular Heads for Big-Bore Bull Head Live Centers

Filters Sort results
Reset Apply
Head Model
B
G
Head Weight
(LBS.)
PART
NUMBER
PRICE
A
4.62
1.63
7
10791
$741
B
7.37
4.38
18
10792
$1,145
C
10.12
7.13
33
10793
$1,777
D
12.87
9.88
51
10794
$2,541
E
15.62
12.63
65
10795
$4,429