Pressure bar / psi	Temperature °C / °F	RPM	Flow Rate lpm / gpm
	105 / 1,500	120 / 250	40,000	28 / 7.4

Bearingless coolant unions are designed for integrated installations on spindles. The bearingless coolant unions use spindle bearings and the spindle housing construction to apply coolant through the spindle (CTS). Most of the bearingless coolant unions are designed to integrate with the spindle design and are often custom to the specific application. Features that can be incorporated into the design include:

• Dry run capabilities
• Coolant, MQL, or oil mist
• Compressed air
• Lipseal for added spindle protection
• Stroke for drawbar movement