Low Torque Rotary Joint MQR Series
Caution
- Refer to the catalog for product specs.
- The product shown in the image may be a representative image. Refer to the catalog for product shapes and types.
Product Description
A rotary manifold in which the piping ports are aligned in a spiral pattern for easy piping.
[Features]
· Stable rotational torque that is not easily affected by supply pressure or temperature fluctuations.
· There is no change in the rotary torque due to spool sticking to the rotating surface, even after a long periods of non-operation.
· Low rotational torque: 0.003 to 0.50 N·m or less.
· Operating temperature: -10 to +80°C.
· Allowable rotational speed: 200 to 3,000 min-1 (rpm).
[Applications]
· For air supplies to rotational/rocking shafts on metal-seal type turntables, robot arms, etc.
Low Torque Rotary Joint Metal Seal Type MQR Series specifications
Specifications
| Model | MQR1-M5 | MQR2-M5 | MQR4-M5 | MQR8-M5 | MQR12-M5 | MQR16-M5 | |
|---|---|---|---|---|---|---|---|
| Number of circuits (number of ports) | 1 circuit | 2 circuits | 4 circuits | 8 circuits | 12 circuits | 16 circuits | |
| Operating fluid | Air | ||||||
| Seal structure | Metal seal | ||||||
| Guide structure | Bearing support | Bearing support at both ends | |||||
| Connection port diameter | Male thread R1/8 | M5 × 0.8 | |||||
| Female thread M5 × 0.8 | |||||||
| Flow rate characteristics | C | 0.50 [dm3/(s-bar)] | |||||
| b | 0.40 | ||||||
| Cv | 0.17 | ||||||
| Lubrication | Not required | ||||||
| Minimum operating pressure | -100 kPa | ||||||
| Maximum operating pressure | 1.0 MPa | ||||||
| Ambient temperature and operating fluid temperature Note 1: | -10 to 80°C | ||||||
| Starting rotational torqueNote 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 | 0.50 N·m or less | |
| Allowable rotational speedNote 5: | 3,000 min-1 (rpm) or lessNote 3: | 2,000 min-1 (rpm) or less | 1,500 min-1 (rpm) or less | 900 min-1 (rpm) or less | 600 min-1 (rpm) or less | 200 min-1 (rpm) or less | |
| Allowable radial load (Allowable coupling axis reaction)Note 4: | 1 N or less | 15 N or less | 30 N or less | 40 N or less | 50 N or less | ||
| Allowable axial load | |||||||
| Weight | 0.025 kg | 0.16 kg | 0.39 kg | 0.76 kg | 1.26 kg | 2.80 kg | |
Note 1: The temperature 80° includes temperature rises during rotation.
Note 2: The starting rotational torque does not change with the supply pressure or with non-use (remains within starting allowable rotational torque), but it does change with the rotational speed.
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 misalignments, shocks and vibrations.
Note 5: min-1 is the number of rotations per minute.
Mounting bracket
| Number of circuits | Flange part number |
|---|---|
| 2 circuits | MQR2-F |
| 4 circuits | MQR4-F |
| 8 circuits | MQR8-F |
| 12 circuits | MQR12-F |
| 16 circuits | MQR16-F |
Structural drawing
MQR1-M5 structural drawing
Components / (MQR1-M5, 1 circuit)
| Number | Part name | Material | Additional notes |
|---|---|---|---|
| 1 | Body | Stainless steel | - |
| 2 | Spool | Special stainless steel | - |
| 3 | Sleeve | Special stainless steel | - |
| 4 | Plate | Aluminum | - |
| 5 | O-ring | H-NBR | - |
| 6 | Retaining ring | Carbon steel | - |
| 7 | Retaining ring | Carbon steel | - |
| 8 | Radial bearing | - | - |
MQR2 to 16-M5 structural drawing
Components / (MQR2 to 16-M5, 2 to 16 circuits)
| Number | Part name | Material | Additional notes |
|---|---|---|---|
| 1 | Body | Aluminum | - |
| 2 | Adapter plate | Aluminum | - |
| 3 | Spool | Special stainless steel | - |
| 4 | Sleeve | Special stainless steel | - |
| 5 | Gasket | H-NBR | - |
| 6 | Bearing retainer | Stainless steel | 16-circuit only |
| 7 | Gasket | H-NBR | 16-circuit only |
| 8 | Plate | Aluminum | 16-circuit only |
| 9 | Flange | Aluminum | - |
| 10 | Parallel pin | Carbon steel | Excluding 2-circuit |
| 11 | O-ring | H-NBR | - |
| 12 | Bolt | Carbon steel | 16-circuit only |
| 13 | Bolt | Carbon steel | - |
| 14 | Bolt | Carbon steel | - |
| 15 | Radial bearing | - | - |
Standard Type / Flange Type outline dimensional drawing ('*' indicates the dimensions of the flange type)
MQR1-M5 dimensional drawing (Units: mm)
MQR2-M5 dimensional drawing (Units: mm)
MQR4-M5 dimensional drawing (Units: mm)
MQR8-M5 dimensional drawing (Units: mm)
MQR12-M5 dimensional drawing (Units: mm)
MQR16-M5 dimensional drawing (Units: mm)
Included bracket dimensions / flange
MQR2-F, MQR4-F, MQR8-F, MQR12-F and MQR16-F dimensional drawing (Units: mm)
Refer to the manufacturer's catalog for information not provided above.