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EMSF - 3060K Motor Spindle

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1pc.

Collet Chuck 

ȭ

3.0mm (CHK - 3.0) or 

ȭ

3.175mm (CHK - 3.175) 

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1pc.

(For U.S. market 

ȭ

3.175mm 

(CHK-3.175))

Chuck Nut (K - 265)

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1pc.

CAUTION

Do not drop or hit this Motor Spindle, as shock can damage to the internal components.

Be sure to clean the collet chuck and chuck nut, the inside of the spindle before replacing the 
tool. If ground particles or metal chips stick to the inside of spindle or the collet chuck, damage 
to the collet chuck or spindle can occur due to the loss of precision.

When cleaning a Motor Spindle, stop the Motor Spindle and remove debris with a soft brush or 
a cloth. Do not blow air into the dust proof cover area (refer to section " 6 - 2 Outside View ") 
with compressed air as foreign particles or cutting debris may get into the ball bearing. 

Always clean the tool shank before installing the tool in the Motor Spindle.

When sizing the correct collet chuck size to the tool shank diameter, a tolerance of +0 

- 0.01mm 

is strongly recommended. A tool shank within the +0 

 - 0.1mm range is mountable, however, 

this may cause poor concentricity and or insufficient tool shank gripping force. 

Select suitable products or tools for all applications. Do not exceed the capabilities of the Motor 
Spindle or tools.

Do not stop the supply cooling air for motor during operation of the machine.
Removing the air pressure from the Motor Spindle causes a loss of purging, allowing the Motor 
Spindle to ingest coolant. This will cause damage to the Motor Spindle.

Carefully direct coolant spray to the tool. Do not spray directly on the Motor Spindle body. 
If large amount splay directly on the Motor Spindle, it may cause excess load of the motor 
rotation with loss of durability to the Motor Spindle.

Stop working immediately when abnormal rotation or unusual vibration are observed. 
Immediately, please check the content of section " 13. TROUBLESHOOTING ". 

Always check if the tool, collet chuck, chuck nut, connection hose and supply air hose for 
damaged before and after operating.

If the collet chuck or chuck nut show signs of wear or damage, replace them before a 
malfunction or additional damage occurs.

After installation, repair, initial operation, or long periods of non operation, please refer to 
section " 11. BREAK-IN PROCEDURE " detailed in Table 2. When checking the spindle, no 
vibration or unusual sound should be observed during rotation.

Do not disassemble, modify or attempt to repair this Motor Spindle. Additional damage will 
occur to the internal components. Service must be performed by NSK NAKANISHI or an 
authorized service center.

When using this Motor Spindle for mass production, please consider the purchase of an 
additional Motor Spindle to be used as a back-up in case of emergency.

Securely connect the compressor supply connection hose and the air hose to the Air Line Kit  
and the Motor Spindle to avoid accidental disconnection during use.

Table 

1. Packing List Contents

When opening the package, check if it includes all items listed in " Table.1 Packing List Contents ".
In the event of any shortage, please contact either NAKANISHI (see the " 4. CONTACT US " section) or your local dealer. 

2

. BASIC PACKAGE

Summary of Contents for EMSF-3060K

Page 1: ...k and use a protective cover around the Spindle whenever the Spindle is rotating Never connect disconnect or touch the Power Cord Plug or Motor Cord Plug with wet hands This may cause an electric shock Never operate or handle the Motor Spindle until you have thoroughly read the Operation Manuals and safe operation has been confirmed 1 To prevent injuries damages check the Motor Spindle and cutting...

Page 2: ...otor Spindle Carefully direct coolant spray to the tool Do not spray directly on the Motor Spindle body If large amount splay directly on the Motor Spindle it may cause excess load of the motor rotation with loss of durability to the Motor Spindle Stop working immediately when abnormal rotation or unusual vibration are observed Immediately please check the content of section 13 TROUBLESHOOTING Alw...

Page 3: ...e found when initially opening the package This shall not apply if the damage was caused by the negligence of a customer 4 CONTACT US For your safety and convenience when purchasing our products we welcome your questions If you have any questions about operation maintenance and repair of the product please contact us Company Name Business Hours U S Toll Free No Telephone No Fax No Web Address Indu...

Page 4: ... speed brushless motor which eliminates the need for brush replacement and frequent maintenance A quick disconnect cord is available for easy brushless motor removal Various sizes of collet chucks are available CHK 0 5mm 6 35mm Standard collet chuck is CHK 3 0mm or CHK 3 175mm For U S market CHK 3 175mm 5 FEATURES Model EMSF 3060K Maximun Motor Rotation Speed 60 000min 1 rpm Spindle Accuracy Less ...

Page 5: ...ure above and remove chuck nut assembly Fig 4 The collet chuck and chuck nut are secured by a groove in the collet chuck and a flange in the chuck nut To remove the collet chuck hold the chuck nut in one hand and push diagonally down on the collet chuck The collet chuck should be released Fig 5 To install the collet chuck hold the collet chuck at a slight angle and insert it into the chuck nut Fig...

Page 6: ...ectly in contact with the Motor Spindle body as shown in Fig 14 as this will result in damage to the Motor Spindle housing and internal components Do not hit drop or cause shock to the Motor Spindle when installing This flange designed to eliminate deformation damage of the Motor Spindle when performing the installation When install a Motor Spindle refer to Fig 13 Insert the Motor Spindle housing ...

Page 7: ... from the bearings causing excessive heat that will cause bearing damage After installation repair initial operation or long periods of non operation please follow the break in procedure detailed in Table 2 The proper surface speed for general grindstones is 10 30m s Do not exceed 13mm of overhang for mounted grindstones as shown in Fig 15 If the overhang must exceed 13mm reduce the motor speed in...

Page 8: ...let chuck and the chuck nut correctly The collet chuck and the chuck nut are worn Replace the collet chuck and the chuck nut Inside of the spindle is worn Replace the spindle shaft Return to NAKANISHI dealer service Contaminants inside the collet chuck and the chuck nut or the spindle Clean the collet chuck chuck nut and the inside of the taper and spindle The spindle ball bearings has been damage...

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