Union, Closed-Seal, 5/8" UNF RH, 0.625" pilot, 3/8" NPT
1116-012-173
- 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 RH5/8"-18 UNF RH
B
3/8"-18 NPT3/8"-18 NPT
C
43.7 mm1.72 "
D1
103.2 mm4.063 "
E
26.37 mm1.038 "
F
12.7 mm0.5 "
G
8.7 mm0.343 "
H
24 mm0.945 "
I
15.872 mm0.625 "
J
71.3 mm2.807 "
K
3/8"-18 NPT3/8"-18 NPT
P
Non-ThreadedNon-Threaded
X
2.4 mm0.094 "
Operating Specifications


Media
CoolantCoolant
Rotor Connection
5/8"-18 UNF RH 5/8"-18 UNF RH
Supply Connection
3/8"-18 NPT 3/8"-18 NPT
Coolant Max. Flow
81.8 l/min21.6 GPM
Coolant Max. Pressure
69 bar1000 psi
Coolant Max. Temperature
71 °C160 °F
Documents & Resources
Installation Guide
Installation Guide for Rotor-Mounted unions
Interface Drawing
Interface Control drawing for 1116-012-173
Operating Manual
Operating Manual for "Closed Seal" unions for machine tools