Low torque Metal seal type
Rotary joint
1 circuit, 2 circuits, 4 circuits, 8 circuits, 12 circuits
Connection diameter
Number of circuits
Low torque
Rotary joint
(Metal seal type)
Options
Note: No flange type in 1
circuit system
N/A Standard type
F
Note)
Flange type
1 circuit
2 circuits
4 circuits
8 circuits
12 circuits
Number of circuits Flange part number
2 circuits MQR2-F
4 circuits MQR4-F
8 circuits MQR8-F
12 circuits MQR12-F
Options / Mounting bracket
Specifications
Note 1) The temperature 80°C includes temperature rise during rotation.
Note 2) The rotational torque does not change with the supply pressure or with non-use (remains within allowable torque), but it does change with the rotational
speed. (Refer to page 2).
Note 3) If using at a speed above 600 min
-1
(r.p.m.), ensure rotation is in the direction in which the joint is fastened.
Note 4) Rubber / resin couplings are recommended due to their excellent absorption of off center, shocks, and vibrations.
Model MQR1-M5 MQR2-M5 MQR4-M5 MQR8-M5 MQR12-M5
Number of circuits 1 2 4 8 12
Operating fluid Air / Inert gas
Seal structure Metal seal
Guide structure Bearing supported Bearing supported at both ends
Port size
Male R1/8
Female M5 x 0.8
M5 x 0.8
Flow rate C[dm
3
/(s
.
bar)] b Cv
characteristics 0.50 0.40 0.17
Lubrication Not required
Min. operating pressure -100kPa
Max. operating pressure 1.0MPa
-10 to 80°C
Allowable torque
Note 2)
0.003 N·m or less 0.03 N·m or less 0.05 N·m or less 0.10 N·m or less 0.20 N·m or less
Allowable rotation speed 3000 min
-1
(r.p.m.)
Note 3)
2000 min
-1
(r.p.m.) 1500 min
-1
(r.p.m.) 900 min
-1
(r.p.m.) 600 min
-1
(r.p.m.)
1N 15N 30N 40N 50N
Weight 0.025kg 0.16kg 0.39kg 0.76kg 1.26kg
Ambient temperature
and operating fluid
temperature
Note 1)
Allowable radial load
(allowable coupling axis
reaction)
Note 4)
