Functions / Technologies

Bearings

Miniature & small ball bearings

• Q [Miniature & small ball bearing] How can I find the grade of the ball bearing from P/N information?

  A

  You can find the grade at our P/N.

  ABEC grade shows "A1" or "A5".

  JIS grade shows "P0" or "P5" by our original P/N and JIS P/N.

  If you cannot find the grade at our P/N, please ask your retailer.

  Engineering Information

  • Bearing Types

• Q [Miniature & small ball bearing] How much is the rotation torque range?

  A

  We cannot show the rotation torque range of the ball bearings.

  The cause of rotation torque is "ball rolling resistance, "seal friction", "lube stir resistance" etc..

  The lube stir resistance is changing by lube quantity and lube form. 

  Lube stir resistance is the main reason that disperse the torque of small & miniature ball bearings. 

  Engineering Information

  • Bearing Types

• Q [Miniature & small ball bearing] I would like to know maximum axial load of the ball bearing.

  A

  Maximum axial load will be different that the requesting life and its deffenition (noise, stop ratate etc..).

  Plaease ask us and calculate to you.

• Q [Miniature & small ball bearing] I would like to know radial, axial and angle clearance of the ball bearings.

  A

  Radial clearance show by P/N.

  NMB P/N shows "P13", "P25" etc.

  JIS P/N shows "M3", "M5" etc.

  If you cannot find the P/N, please ask your retailer.

  Axial and angle clearance do not show by P/N.

  Please ask us with the P/N information.

• Q [Miniature & small ball bearing] I would like to know the tolerance of shoulder diameter(Lo/Li).

  A

  The tolerance of outer ring shoulder diameter(Lo) is -0.1 to +0.2mm.

  The tolerance of inner ring shoulder diameter(Li) is -0.1 to +0.2mm.

• Q [Miniature & small ball bearing] I would like to know the tolerance of the shaft and housing in the case of tight fitting.

  A

  The recommendation of the shaft/housing tight fitting tolerance will change by the material, temperature range and its shape.

  If you make housing tight fitting, please tell us temperature range, housing outer diameter and its material.

  If you make shaft tight fitting, please tell us temperature range, shaft inner diameter and its material.

  
  

  Engineering Information

  • Bearing Types

• Q [Miniature & small ball bearing] I would like to know the difference of internal design "X2", "X3" etc…

  A

  Internal design number is the serial number for the internal design distinction.

  Basic size(I/D, O/D, width) is equal.

  Please ask us if you would like to know individual details.

• Q [Miniature & small ball bearing] I would like to know the weight of ball bearing.

  A

  Ball bearing weight has a variation by lube material and quantity.

  Please ask us with the P/N.

• Q [Miniature & small ball bearing] I would like to know chemical, acid resistant ball bearings.

  A

  Our ball bearings ring material use SUJ2 and DD400 stainless steel.

  DD400 is the original material that makes better life and load conditions;

  corrosion resistance is the same performance compare with SUS440C.

  We can provide more special material for your requests.

• Q [Miniature & small ball bearing] I would like to know useful temperature range of ball bearings.

  A

  Useful temperature range is changed by lube, seal material and requesting life.

  Please ask us in details.

• Q [Miniature & small ball bearing] I would like to know about low-outgas grease information.

  A

  We have a various grease of your requesting cleanliness.
  We can recommend the best low-outgas grease for your requesting cleanliness and applications.

• Q [Miniature & small ball bearing] I would like to know the difference of the P/N "608ZZ" and "R-2280HH".

  A

  "608ZZ" and "R-2280HH" are difference of JIS P/N and NMB P/N.

  Basic size(I/D, O/D, width) is same with each P/N.

  If you would like to contact with us, you can use both P/N.

Precision Machined Components

Precision mechanical components

• Q [PMC] What is PMC?

  A

  PMC is an abbreviation for the term, Precision Mechanical Components. We make precision mechanical parts mainly with our MinebeaMitsumi ball bearings.

  These are not "standard products", but we manufacture custom-made products that meet the needs and specifications of our customers.

Fastener

• Q [Fasteners] Whom should I ask about technical question?

  A Please contact your sales representative or submit your query via our Contact form.

• Q [Fasteners] Please tell me size variation of fastener.

  A We will consider the size of the production of customer requirements.　Please contact us for details.

• Q [Fasteners] What kind of raw material is used for your products?

  A We manufacture parts for a variety of materials including aluminum alloys , titanium alloys , alloy steels, etc. I have experience in a wide variety of materials In addition to this, more details, please contact us.

• Q [Fasteners] What kind of surface treatment can you process?

  A Minebea can perform virtually all of the surface treatment required for fasteners and mechanical parts, such as cadmium plating, silver plating, hard chrome plating, zinc plating, and others. Please contact us for details.

• Q [Fasteners] What kind of heat treatment can you process?

  A In order to ensure the product characteristics required by consensus or customers' standards , Minebea has a full line-up of heat treatment equipment, including vacuum furnaces, continuous-type furnaces, and shaker hearth furnaces for titanium alloy fasteners . Please contact us for details.

Wavy Nozzle

• Q [Wavy Nozzle 2] [Before installation] Where are the control boards stored?

  A The control board is stored inside the machine control panel box.

• Q [Wavy Nozzle 2] [Before installation] Is it possible to set the operation mode without a controller?

  A A controller is required to set the operation mode. It can be set with a wired controller or a wireless controller using an iOS device.

• Q [Wavy Nozzle 2] [Before installation] Is it possible to set the operation mode from NC?

  A No. A controller (wired or wireless connection) is required.

• Q [Wavy Nozzle 2] [Before installation] Can a non-NC machine use Wavy Nozzle?

  A Yes, it can also be controlled by a Sequencer.

• Q [Wavy Nozzle 2] [Before installation] Is there any influence of noise caused by other devices in the factory when connected via Bluetooth?

  A Normally, Bluetooth can communicate over a distance of 20 meters (65 ft), but the it has been verified to be able to communicate if it is 5 meters (16 ft) in a factory noise environment.

• Q [Wavy Nozzle 2] [Before installation] Is there a standard lineup of attachments (mounting jigs)?

  A A standard installation kit is currently available only for FANUC ROBODRILL. However, for other machines that have a track record of installation with MinebeaMitsumi, jigs have been made into drawings and it is possible to buy mounting jigs and obtain drawings.
  We can sell mounting jigs and provide drawings.

• Q [Wavy Nozzle 2] [Before installation] Can Wavy Nozzle use for Semi-dry cut using oil mist?

  A Yes. It can be used.

• Q [Wavy Nozzle 2] [Before installation] What is the maximum viscosity of the cutting-oil?

  A

  We have experience of up to 40mm²/s viscosity.

• Q [Wavy Nozzle 2] [Before installation] What kind of coolant can be used?

  A Wavy Nozzle can be used by oil based coolant WITHOUT chlorine or active sulfer and water based coolant WITH mineral oil.
  If you want to use other kind of oil, please inquire from the form.

• Q [Wavy Nozzle 2] [Before installation] Can Wavy Nozzle eject air instead of coolant?

  A Currently there are two types of nozzles with dia. 3mm and dia. 5mm holes. Since the nozzle is attached by a 1/4 tapered screw, it can be replaced with a commercial nozzle.

• Q [Wavy Nozzle 2] [Before installation] Can Wavy Nozzle use any other liquids besides coolant oil? For example, cleaning solution.

  A Use with liquids other than coolant is not covered by the warranty. However, since some liquids may be usable, please consult with the manufacturer and model number of the liquid.

• Q [Wavy Nozzle 2] [Installation check] Is the M-code signal used to operate Wavy Nozzle a "shot signal" or "Latch Signal"?

  A Latch signal is required.

• Q [Wavy Nozzle 2] [Installation check] Is it possible to change the cable between the ejection unit and the control board to longer cable?

  A No.Operation is guaranteed with the product cable length of 6 meters (20ft). If the cable is extended, it cannot be guaranteed. If the length is not enough, divide the control board and extend it with a cable.

• Q [Wavy Nozzle 2] [Installation check] There are 5 M-code inputs with the standard setting. How can it be expanded up to 31 settings?

  A

  By changing M-Code process mode to "5-BIT", the 31 settings can be called up by combination of 5 codes on a single input line.

  

• Q [Wavy Nozzle 2] [Installation check] KICK mode has a function of oil ejection of one-direction. Does Wavy Nozzle have a built-in valve?

  A No, Wavy Nozzle does not have a valve itself, but it can control the ON/OFF valve signal in the machine.

• Q [Wavy Nozzle 2] [Installation check] How are air and oil connected?

  A An existing nozzle(s) is typically removed and replaced with a Wavy Nozzle unit. An existing or new coolant line would need to attach to the Wavy Nozzle. An adapter may be necessary.

• Q [Wavy Nozzle 2] [Installation check] How to wire Nozzle cable?

  A Nozzle cable is routed using existing holes inside machining area.

• Q [Wavy Nozzle 2] [Installation check] What is the oil inlet of the ejection unit?

  A Rc3/8 female (BSPT)

• Q [Wavy Nozzle 2] [Installation check] Can discharge pressure be adjusted?

  A No. There is no valve or pressure-increasing function inside the Wavy Nozzle, and the pressure of the pump dominates the discharge pressure because it is just a flow path.

• Q [Wavy Nozzle 2] [Installation check] Is there any limitations regarding the mounting direction?

  A There is no limit, as any position/orientation will not affect its ability to operate.

• Q [Wavy Nozzle 2] [Installation check] Can we buy a mounting jig?

  A Standard mounting jigs can be supplied as drawings. They can also be sold (extra cost).

• Q [Wavy Nozzle 2] [Installation check] Can we obtain CAD files to consider installation?

  A Yes, CAD files can be provided.

• Q [Wavy Nozzle 2] [Operation method] Is it necessary to connect the controller even during operation?

  A No. The controller is needed only for setting up the operation mode. Once the setting is complete, there is no problem in operation, even if the controller is removed.

• Q [Wavy Nozzle 2] [Operation method] Is there an alarm signal output that informs the failure of Wavy Nozzle to the machine?

  A Yes. An alarm output terminal is provided on the control board. You can respond by connecting the wiring from the control board to the machine and adding it as an alarm condition or a stop condition. Connection and NC setting is needed.

• Q [Wavy Nozzle 2] [Operation method] Is there the function that notifies the Wavy Nozzle when the machine stops or has an alarm signal?

  A Yes. There is an External alarm input terminal in the control board.

• Q [Wavy Nozzle 2] [Operation method] Is there a case where all coolant is processed only with the Wavy Nozzle?

  A Yes. But, depending on the situation not all processes can be covered with just a single Wavy Nozzle. In that case, please use a fixed nozzle together.

• Q [Wavy Nozzle 2] [Operation method] Are there any variations of the nozzle available?

  A Currently there are two types of nozzles with dia. 3mm and dia. 5mm holes. Since the nozzle is attached by a 1/4 tapered screw, it can be replaced with a commercial nozzle.

• Q [Wavy Nozzle 2] [Operation method] Do chips clog inside Wavy Nozzle?

  A If chips larger than the nozzle diameter enter, they will clog. If clogged, remove the nozzle and blow with air to remove chips.

• Q [Wavy Nozzle 2] [Operation method] Does vibration of the nozzle's movement affect accuracy?

  A From our experience in precision machining at MinebeaMitsumi, it is not a problem as long as the Wavy Nozzle unit is mounted tightly.

• Q [Wavy Nozzle 2] [Operation method] How to troubleshoot error codes?

  A

  Please check the diagnostic chart.

  • Diagnostic chart
  • WN2 Error Code Table

• Q [Wavy Nozzle 2] [Not effective] What is the solution when coolant pressure drops?

  A

  Please clean the filter and coolant tank.

  VIDEO

• Q [Wavy Nozzle 2] [Not effective] Coolant stream is scattered and diffused, and is difficult to spray at the desired cutting point.

  A

  Attach a flow straightening adapter to the nozzle.

  
  

  

  VIDEO

• Q [Wavy Nozzle 2] [Not effective] What is the countermeasure for the limited installation space that prevents injection at the cutting point?

  A

  Install a variable angle nozzle. It increases the range of injection positions.
  

  

  VIDEO

• Q [Wavy Nozzle 2] [Other] What is the difference from the high pressure coolant system?

  A

  High-pressure coolant equipment forcibly breaks chips with high-pressure cutting oil injection of 10 to 20 MPa. The Wavy Nozzle allows the chips to extend and flow in one direction. The chips are not necessarily broken.

  In the following cases, try using a Wavy Nozzle:

  • The operation of the high-pressure coolant pump system vibrates, resulting in deterioration of product accuracy and reduction of machine life.
  • The high-pressure coolant system consumes a large amount of power and generates a lot of oil mist, deteriorating the factory environment and increasing the oil consumption, necessitating the purchase of a mist collector.

Rotary Components

Electromagnetic Clutches and Brakes

• Q [Electromagnetic clutches / brakes] Can I ask technical questions here?

  A Please use the Conract form and make sure to include the model number.

  Engineering Information

  • Tooth Type Electromagnetic Clutch

• Q [Electromagnetic Clutches and Brakes] Can you select clutches and brakes for us?

  A Yes, but we'll require detailed usage conditions. For details, please contact your sales representative or submit your query via our Contact form.

Fan Motors

AC fan motors

• Q [AC fan motors] Are there any restrictions for mounting method about fan motor?

  A

  Since ball bearings are used for the bearings, the mounting can be selected horizontally, vertically, or tilted.

DC fan motors

• Q [DC fan motors] Are there any restrictions for mounting method about fan motor?

  A

  For either the suction or the exhaust type, horizontal, vertical or inclined installation can be selected. However, some models have a limited mounting direction. In that case, please check the specifications as "mounting attitude".

• Q [DC fan motors] Please tell me protection method when blade is locked.

  A

  Motor burnout is prevented by the current cut-off automatic restoration function.

• Q [DC fan motors] Please tell me connection method.

  A

  We connect lead wires[red:+,black -] from fan motor body to DC power supply with specified voltage.

• Q [DC fan motors] Please tell me how to choose "with ribs" or "without ribs".

  A

  We select "with ribs"  when fix frame through and "without ribs" when fix on one side of flange.

DC blower fan motors

• Q [DC blower fan motors] Please tell me protection method when blade is locked.

  A

  Motor burnout is prevented by the current cut-off automatic restoration function.

• Q [DC blower fan motors] Please tell me connection method.

  A

  We connect lead wires[red:+,black -] from fan motor body to DC power supply with specified voltage.

High-pressure blowers

• Q [High-pressure blowers] Can I ask technical questions here?

  A Please use the Conract form and make sure to include the model number.

  Engineering Information

  • Outline of 60DCF

• Q [High-pressure blowers] What power supplies do we need?

  A The drive circuits require an AC power supply: 200 V (-475, -477, -478 models) or 100 V (-478 model); the signal circuits, a DC power supply: 0-10 V.

• Q [High-pressure blowers] How do we install and connect?

  A Please refer to the Instruction Manual for instruction.

• Q [High-pressure blowers] Can you supply blowers alone?

  A No, only as sets.

• Q [High-pressure blowers] What is the service life?

  A The warranty is for one year or 5,000 hours.
  A product's service life depends on the customer's usage conditions.