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MSU / MSCP
Installation and Instruction Manual
The Ogura model MSU is an inline shaft unit in which the MSC type clutch and MSB
type brake are accurately centered and set in a light alloy housing, and is ideal for repeated
start and stop. The MSCP type has only the clutch set in the same way as the MSU type. All of
them are stationary type and have input / output shafts, so they can be easily connected
directly by coupling or driven by belt pulleys. In addition, it has a large heat dissipation capacity,
can withstand high frequency use, and the gap is kept constant by the auto gap device only by
applying the exciting voltage, so no adjustment is required after installation.
Ogura Industrial Corp, Somerset, NJ, USA
www.ogura-clutch.com
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Table of Contents
Summary of Contents for Ogura MSU
- Page 1 The MSCP type has only the clutch set in the same way as the MSU type. All of them are stationary type and have input / output shafts, so they can be easily connected directly by coupling or driven by belt pulleys.
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Page 2: Table Of Contents
/ equipment. ■ Please keep this instruction manual in a safe place so that you can take it out and read it when necessary, and be sure to deliver it to the final customer. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... -
Page 3: Safety Precautions << Be Sure To Read Before Use
Never use it in a flammable gas atmosphere where there is a risk of ignition or explosion. Also, if there is a flammable material such as cloth nearby, seal the main body. Please note that the allowable work load will decrease if it is sealed. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... - Page 4 Also, do not install it directly in a place subject to vibration or shock. If used in the above-mentioned surrounding environment, it may cause damage to the product, malfunction, or deterioration of performance. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com...
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Page 5: Handling Precautions
If an electric wire with a small current capacity is used, the insulation film will melt and insulation will be poor, which may cause electric shock and leakage, as well as cause a fire. Be sure to control the tightening torque of the bolts and prevent them from loosening. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... -
Page 6: Precautions Before Operating
If you operate more than the allowable amount of work, heat generation may increase and the operating surface may become very hot and cause a fire. In addition, the specified performance will not be obtained, so please use within the allowable work load. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... -
Page 7: Precautions While Operating
The temperature does not drop immediately after the operation is stopped. Make sure that the temperature has dropped sufficiently before working, not only during operation, but also when touching the product for maintenance or inspection. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... -
Page 8: Precautions For Maintenance And Inspection
Since the power supply unit is exposed to the outside, there is a risk of electric shock if you touch it with your hands or fingers. Do not touch it directly during operation as well Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... -
Page 9: Function - Performance
2. Function - Performance 2-1. Specifications Table 1 Performance Note: MSU type indicates clutch / brake, and MSCP type indicates clutch only. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... -
Page 10: Structure And Operation
2-2. Structure and Operation The MSU type has the structure shown in Fig. 1, and the MSCP type has the structure shown in Fig. 2. ③ ⑧ Clutch / brake field with built-in coil (clutch field ② for MSCP type) is fixed to the inner surface of the casing, respectively, ④... - Page 11 Fig 1. MSU type MSU type clutch / brake component names ① Casing ② Ball bearing ③ Clutch field ④ Input axis ⑤ Ball bearing ⑥ Parallel key ⑦ Rotor assembly ⑧ Brake field ⑨ Output shaft ⑩ Parallel key ⑪...
- Page 12 ③ Ball bearing ④ Rotor assembly ⑤ Parallel key ⑥ Input axis ⑦ Ball bearing ⑧ Clutch armature ⑨ Parallel key ⑩ Ball bearing ⑪ Output shaft ⑫ Armature hub ⑬ Flange ⑭ Terminal block Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com...
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Page 13: Precautions - Practical Use
Be sure to carry the product itself when handling it. Be careful not to damage the clutch or brake when handling. When installing, removing, and transporting, be careful when handling the clutch and brake so that there is no impact or collision. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... -
Page 14: Precautions For Installation
3-2. Precautions for Installation When installing, pay attention to the following points: Fig 3. An example in which the MSU type is installed between the motor and the reducer to start and stop the load. Do not allow water or oils to adhere (do not apply). - Page 15 Connect the accessory back surge absorption protection element (varistor) to each of the clutch and brake in parallel. At that time, the lead wires and protective elements of the clutch and brake have no polarity. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com...
- Page 16 Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com...
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Page 17: Confirmation During Operation
2) Check the following points during the test run. (a) Does the clutch work and the load is connected smoothly? (b) Does the brake work and the load stops smoothly? Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... -
Page 18: Maintenance And Inspection
Even if the power supply voltage is as specified, if the circuit is long, the voltage will drop due to line resistance, so check the voltage at the clutch / brake terminal when the power is on. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... - Page 19 The clutch and brake are for dry use, so make sure that oil, water or dust does not get into the friction surface. If foreign matter gets into the friction surface or rotating parts, the performance of the clutch / brake may deteriorate. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com...
- Page 20 / brake terminal when the power is on. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com...
- Page 21 In the case of normal wear, the amount of wear can be used up to the limit value shown in Table 4. If the wear limit line (see Fig. 6) is exceeded, the product will reach the end of its life, so replace the unit with a new one. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com...
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Page 22: Troubleshooting
If you have any questions, please contact us. Problem : Clutch / brake slips Reason: Oil adheres to the friction surface. Action: Replace the unit. Reason: Foreign matter is in the friction surface. Action: Remove foreign matter. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com... - Page 23 Reason: High ambient temperature. Action: Improve ventilation / airflow. Problem: There is an abnormal noise Reason: Foreign matter in the friction surface. Action: Remove foreign matter. Reason: The mounting condition is not good. Action: Install correctly. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com...
- Page 24 Please note that the specifications and contents described in this instruction manual are subject to change without notice. Ogura Industrial Corp, Somerset, NJ, USA www.ogura-clutch.com...