Union, Bearingless All-Media, M16x1.5 LH, 18 mm pilot, G 1/8"
1139-746-301
- Single passage for all media
- Patented All-Media technology operates with closed seals for coolant, as a Pop-Off™ when pressure is removed, and as with a microscopic gap between the seals (“controlled leakage”) with pressurized dry air
- Non-rotating element has a “stroke” (axial movement) of 0.7-3.0 mm, for reliable sealing even with thermal expansion of spindle and variations in drawbar position
- Full-flow design has no obstructions to trap swarf or debris
- Balanced mechanical seals made from silicon carbide for long life even under difficult operating conditions
- Anodized aluminum housing resists corrosion
Dimensions
A
M16x1.5 LHM16x1.5 LH
B
G 1/8"-28G 1/8"-28
C
52.5 mm2.067 "
D1
108.4 mm4.268 "
E
40.8 mm1.606 "
F
15.9 mm0.626 "
G
8.5 mm0.335 "
H
24 mm0.945 "
I
17.993 mm0.708 "
J
56 mm2.205 "
K
G 3/8"-19G 3/8"-19
P
Non-ThreadedNon-Threaded
X
4.7 mm0.185 "
Operating Specifications
Media
Air, Coolant, MQLAir, Coolant, MQL
Rotor Connection
M16x1.5 LH M16x1.5 LH
Supply Connection
G 1/8"-28 G 1/8"-28
Air Max. Flow
970 l/min34.3 CFM
Air Max. Pressure
10 bar150 psi
Air Max. Temperature
71 °C160 °F
Coolant Max. Flow
28 l/min7.4 GPM
Coolant Max. Pressure
140 bar2030 psi
Coolant Max. Temperature
71 °C160 °F
MQL Max. Flow
970 l/min34.3 CFM
MQL Max. Pressure
10 bar150 psi
MQL Max. Temperature
71 °C160 °F
Documents & Resources
Installation Guide
Installation Guide for Externally mounted Bearingless unions
Interface Drawing
Interface Control drawing for 1139-746-301
Operating Manual
Operating Manual for "All Media" 1139 series