Royal “Oil Country” Big-Bore Bull Head Live Center — 6 Morse Taper
- Designed specifically for machining large diameter pipes up to 15″ for the oil and gas industry.
- Head not included. Order Separately.
$3,350.00
In Stock for Same Day Shipping
- 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.
- Body and point are hardened and ground for strength and long life.
- All Royal Live Centers are proudly Made in U.S.A.
| Live Center Type | “Oil Country” Big-Bore Bull Head, Bull Head |
|---|---|
| Center Dimension A (Center Taper) | 6 MT |
| Shank Type | Morse Taper |
| Center Type | Bull Head |
Compatible products..
Some manufacturers believe that a long, thin point provides more rigidity than a short, thick point. But in fact, the opposite is true.
In order to verify that Royal’s short, thick point provides superior rigidity over a long, thin point, we built the test fixture pictured above.
Here’s how it works:
- Both live centers have holes drilled in their shanks corresponding to the indicator locations.
- As radial force is applied evenly to the point tips by turning a centrally-located screw, the indicators are able to measure the internal deflection of each point.
- Almost immediately upon application of the load, the indicators show that the competitor’s point flexes 600% more thanthe Royal point!
Point Analysis of 4MT Spindle Type Live Centers
D1 = Diameter of Royal Point = .603″
D2 = Diameter of Other Brand Point = .465″ Cross-Sectional Area of Royal Point = .285 sq. in.
Cross-Sectional Area of Other Brand Point = .170 sq. in.The cross-sectional area of the point on the Royal Center is 68% larger than that of the other brand, making the Royal point much more rigid and less likely to deflect under load.
Royal’s thick, beefy point offers superior rigidity, resulting in tighter part tolerances and chatter-free surface-finishes.
The exclusive Royal Roto-Shield™ represents a breakthrough in live center technology, significantly increasing effective operating life and overall value. Royal Roto-Shield™ Technology consists of two main components:
- A live center point machined from an oversized solid bar to incorporate a specially shaped integral coolant slinger.
- A long-life, spring-loaded seal that is resistant to abrasion, high temperatures, and virtually all metalworking fluids.
A dramatic increase in operating life is achieved through the following effects:
- Coolant is deflected, preventing it from penetrating the center and flushing out the grease.
- Bearings are protected from harmful fines and dust.
- Seal wear is minimized.
- Lubricating grease maintains consistency and lubricity.
Insist on Royal Roto-Shield™ Technology – Only Available on Royal Live Centers