Royal High-Precision Quad-Bearing Live Center — Small Diameter Long Point — 2 Morse Taper
$1,295.00
In Stock for Same Day Shipping
- An excellent choice for precision turning, grinding, and hard-turning.
- Guaranteed accurate to ± 0.00005” TIR or better.
- Precision assembly of three angular contact bearings secured by a lock nut provide exceptional rigidity and accuracy.
- Low-profile head combined with a small-diameter long point makes this an excellent choice when greater tool clearance is needed.
- Exclusive Roto-Shield™ coolant slinger and upgraded seal provide outstanding bearing protection for extended operating life.
- 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 | Quad-Bearing - Small Diameter Long Point, High-Precision Quad Bearing |
|---|---|
| Shank Type | Morse Taper |
| Center Type | High-Precision Quad Bearing |
| Center Dimension A (Center Taper) | 2 MT |
| Center Dimension B | 1.70 |
| Center Dimension E | 2.120 |
| Weight of Workpiece (lbs.) | 350 |
| Center Dimension F | 1.75 |
| Center Dimension G | 0.50 |
| Max Suggested RPM | 6,000 |
| Thrust Load (lbs.) | 1,270 |
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