JOHNSON-FLUITEN Advanced rotary unions for fluid service + High speed rotating unions for trasferring fluids and air + Precision rotary unions for more effective cooling and lubrication + Engineered reliability for demanding applications

Contents Contents G™ Rotary Union Overview G™ Rotary Union Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 3 GA GA General Purpose Air and Hydraulic Unions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 4 GB GAI Internal Mounted Unions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 5 GFR/GFRA GFR/GFRA Coolant Unions for Dry Running . . . . . . . . . . . . . . . . . . . . . ....

Overview Overview The G rotary union is a high performance, high precision union for coolant, air, and hydraulic oil applications. G unions are generally applied to the machine tool industry for: u Transfer lines u Rotary index tables Based on more than 70 years of mechanical seal design and application expertise, the G rotary union line is built to perform under the most demanding conditions. A thorough understanding of seal load optimisation, seal wear characteristics, and application knowledge means the G union can provide years of reliable service for coolant, water, air, and hydraulic oil...

Consult factory for additional thread type. Features and Benefits u Precision ball bearings lubricated for life u Hardened stainless steel rotor u Optimised seal balance ratio for minimal friction u Smooth running, no vibration u Body available in anodised aluminium or brass u Stationary seal face available in carbon graphite, bronze seal face

Features and Benefits u Stainless steel rotor u Optimised seal balance for minimal friction u Labyrinth seal between bearing and mechanical seals u Stainless steel and aluminium body for longer lifetime and safety u All materials in contact with medium are u Rigid bearing installation for safety non-corrosive

ooooooooooooooooooooo oooooooooooooooooooo looloolooloolooloolooloolooloo u Anodised aluminium body u Full flow area, minimal pressure drop u Stainless steel spring located outside the flow u Stainless steel rotor resists corrosion Features and Benefits u Labyrinth seal and drain holes protect bearings u Optimised seal balance ratio u Silicon carbide seal faces resist wear and thermal shock u Precision ball bearings eliminate vibration

Features and Benefits u Special seal design permits dry running u Optimised seal balance ratio for minimal friction u Precision angular contact bearings widely spaced to eliminate wobble and vibration u Labyrinth seal and drain holes protect bearings u Anodised aluminium body u Reduced coolant misting for improved air quality u Low heat generation in bearings and mechanical seal u No leakage during tool change commutation u Low vibration for precise machining u Also available for rotation with compressed air u Supplied with bearings run-in upon request u Closing ring suitable for proximity sensing...

Rotary Union Type GFS-GFSA PV Diagram Spindle Detail see installation instructions Features and Benefits u Special seal design permits dry running u Optimised seal balance ratio for minimal friction u High precision angular contact bearings eliminate wobble and vibration u Labyrinth seal and drain holes protect bearings u Anodised aluminium body u High speed, dry run applications u Reduced coolant misting for improved air quality u Low heat generation in bearings and mechanical seal u No leakage during tool change commutation u Low vibration for precise machining u Also available for rotation...

Rotary Union Type GFP-GFPA PV Diagram Spindle Detail see installation instructions Features and Benefits u Labyrinth seal and drain holes protect bearings u Optimised seal balance ratio u Silicon carbide seal faces resist wear and thermal shock u Angular ball bearing design resists side loading u Low vibration for precise machining u Anodised aluminium body u Full flow area, minimal pressure drop u Multiple stainless steel springs located outside the flow u Stainless steel rotor resists corrosion u Closing ring suitable for proximity sensing drawbar position

Rotary Joint Type GHR/GHRA - PV Diagram GHRAFeatures and Benefits ► Special seal design permits dry running ► Labyrinth seal and drain holes protect bearings ► Optimize seal balance ratio for minimal friction ► Anodized aluminium body ► Full flow/ area, minimal pressure drop ► Stainkss steel rotor resist corrosion 10 ► Long drawbar stroke for maximum flexibility ► No leakage during tool change commutation ► Large drain hioles to evacuate coolant from the union ► Supplied with benrings run-in upon request ► Staiolpss steel springs leceted outside the flow

*High Speed 42.000 RPM with ceramic bearings Features and Benefits u Special seal design permits dry running u Labyrinth seal and drain holes protect bearings u Optimised seal balance ratio u High precision angular contact bearings for high speeds u Anodised aluminium body u Full flow area, minimal pressure drop u Long drawbar stroke for maximum flexibility u Seal to protect bearings for air pressure in rotor area u Low heat generation in bearings and mechanical seal u No leakage during tool change commutation u Large drain holes to evacuate coolant from the union u Supplied with bearings run-in...

GHP/GHPAGHPA Features and Benefits u Special seal design permits dry running u Labyrinth seal and drain holes protect bearings u Optimised seal balance ratio u High precision angular contact bearings for high speeds u Anodised aluminium body u Full flow area, minimal pressure drop u Long drawbar stroke for maximum flexibility u Low heat generation in bearings and mechanical seal u No leakage during tool change commutation u Large drain holes to evacuate coolant from the union u Supplied with bearings run-in upon request