Union, Closed-Seal, 5/8" UNF LH, 0.655" pilot, 3/4"-16 UNF
1116-539-059
- Single passage for coolant or MQL
- Closed seals for transfer line and similar applications
- Full-flow design has no obstructions to trap swarf or debris
- Bearing-supported with threaded rotor for easy installation
- Deep groove radial ball bearings for smooth operation
- Labyrinth system and large vents to protect ball bearings
- Balanced mechanical seals made from silicon carbide for long life even under difficult operating conditions
- Anodized aluminum housing and stainless steel rotor resist corrosion
Dimensions

A
5/8"-18 UNF LH5/8"-18 UNF LH
B
3/4"-16 UNF3/4"-16 UNF
C
43.64 mm1.718 "
D1
115.8 mm4.559 "
E
32.9 mm1.295 "
F
19 mm0.748 "
G
8.7 mm0.343 "
H
24 mm0.945 "
I
16.649 mm0.655 "
J
81.7 mm3.217 "
P
Non-ThreadedNon-Threaded
X
4.8 mm0.189 "
Operating Specifications


Media
Coolant, MQLCoolant, MQL
Rotor Connection
5/8"-18 UNF LH 5/8"-18 UNF LH
Supply Connection
3/4"-16 UNF 3/4"-16 UNF
Coolant Max. Flow
81.8 l/min21.6 GPM
Coolant Max. Pressure
69 bar1000 psi
Coolant Max. Temperature
71 °C160 °F
MQL Max. Flow
2040 l/min72.1 CFM
MQL Max. Pressure
10 bar150 psi
MQL Max. Temperature
71 °C160 °F
Documents & Resources
Installation Guide
Installation Guide for Rotor-Mounted unions
Interface Drawing
Interface Control drawing for 1116-539-059
Operating Manual
Operating Manual for "Closed Seal" unions for machine tools