ROYAL PRODUCTS

Standard-point live centers have a 60-degree included angle point, suitable for general-purpose turning and facing where the workpiece center hole is standard. CNC-point live centers feature a sharper point angle, typically 30 degrees, which provides better clearance and accessibility for CNC lathes with tool turrets, allowing tools to reach closer to the workpiece. CNC-point models also often have a smaller point diameter for precision work. Royal Products offers both types, with standard-point models like MPN 10103 (MT3) and CNC-point models like MPN 10665 (MT5). Selection depends on the machine type and the required tool clearance.

Royal Products live centers are available with Morse Taper shanks in sizes MT2, MT3, MT4, and MT5. For example, the standard-point live center MPN 10102 has an MT2 shank, the free-turning live center MPN 10834 has an MT4 shank, and the bull head live center MPN 10907 has an MT5 shank. The taper size must match the tailstock or spindle taper of the machine tool. Larger tapers like MT5 are used for heavier workpieces and larger lathes, while MT2 and MT3 are common on smaller lathes and drill presses. 3G Electric stocks a range of these sizes to fit various machines.

Spring-loaded live centers, such as MPN 10533, incorporate a spring mechanism that maintains constant pressure on the workpiece even if it expands due to heat during machining. This is beneficial for long cuts or when thermal growth is a concern, as it prevents excessive thrust loads on the bearings. Standard live centers, like MPN 10103, are rigid and provide fixed support, suitable for most general turning operations where thermal expansion is minimal. Spring-loaded models are often used in CNC turning centers for finishing operations. Consider the workpiece material, cutting parameters, and tolerance requirements when selecting.

Royal Products live centers have point diameters ranging from 0.55 inches to 2 inches, and head diameters from 0.94 inches to 5.15 inches. For instance, the spring-loaded CNC-point live center MPN 10533 has a 0.55-inch point and 0.94-inch head, while the bull head live center MPN 10907 has a 2-inch point and 5.15-inch head. Smaller point diameters are used for small workpieces and precision applications, while larger diameters provide greater strength and support for heavy workpieces. The head diameter affects the clearance and the maximum workpiece diameter that can be accommodated. Select based on the workpiece size and machine capacity.

Yes, Royal Products live centers are used in grinding operations where workpiece rotation and precision are required. High-precision CNC-point live centers, such as MPN 10662, are designed for grinding and other high-accuracy applications. They feature low runout and sealed bearings to withstand grinding dust and coolant. The bull head live center MPN 10907 is also used for grinding heavy workpieces. When using live centers for grinding, ensure the center is rated for the higher speeds typical of grinding machines and that the point angle matches the workpiece center hole. Proper lubrication and maintenance are essential for longevity.

A bull head live center, such as MPN 10907, has a large head diameter and a large point diameter, designed to support heavy workpieces that have a large center hole or pipe-like ends. The increased size provides greater rigidity and load-bearing capacity, reducing deflection during turning or grinding. It is commonly used in heavy machining, such as oil and gas components, large shafts, and rolls. The MT5 shank fits large lathes. The bull head design allows the center to contact the workpiece over a larger area, distributing the load and minimizing wear. It is not intended for small workpieces where a standard live center would suffice.