GFL/GFLA Rotary Union Zoom

GFL/GFLA Rotary Union

For coolant, water, oil, and air service

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Product Description


    The G™ rotary union introduces a high performance, high precision union for coolant, air and hydraulic oil applications. G unions are generally applied to the machine tool industry for:

    • Transfer lines
    • Gun drills
    • Spindles
    • Drilling
    • Milling
    • Rotary index tables

    Based on decades of mechanical seal design and application expertise, the G rotary union is built to perform under the most demanding conditions. A thorough understanding of seal load optimization, seal wear characteristics and application knowledge means the G union can provide years of reliable service for coolant, air and hydraulic oil applications.


    • Special seal design permits dry running
    • Optimized seal balance ratio for minimal friction
    • Precision angular contact bearings widely spaced to eliminate wobble and vibration
    • Labyrinth seal and drain holes protect bearings
    • Anodized aluminum body
    • Reduced coolant misting for improved air quality


    • Low heat generation in bearings and mechanical seal
    • No leakage during tool change commutation
    • Low vibration for precise machining
    • Also available for rotation with compressed air
    • Supplied with bearings run-in upon request
    • Closing ring suitable for proximity sensing drawbar position
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