VIDEO:
30 SECOND
PART BUILDER
EXPLAINED
MQR, Rotary Union, Low Torque Metal Seal Type
The low torque, metal seal, rotary joint series MQR makes it possible to supply air to rotating and sliding components. Rotational torque is unaffected by supply pressure and temperature fluctuations. The use of metal seals prevents the spool from sticking to the rotating surface even after a long period of non- operation. Piping ports are aligned in a spiral line for easy piping.
- Number of circuits: 1 to 16 circuits.
- Service life: 1 billion rotations.
- Allowable rpm: 200 to 3000.
- Operating pressure range: -100 kPa to 1.0 MPa.
How to order
Series MQR
1
MQR
F 4M5
M5
M5 x 0.8
1
2
4
8
12
How to Order
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)
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