Special Applications

Boring, Drilling, Grinding, and Machining. Maximum Precision for a Range of Critical Functions.

When the difference between success and failure can be measured by microns, you need Perske motors. Perske offers a line of multipurpose motors that meets the demand for extremely fine machining tolerances.

Industry applications that require Special Application Motors include:

  • Aerospace manufacturing
  • Automotive industry metalworking and finishing
  • Medical and dental equipment
  • Plastic industry
  • Woodworking finishing

Overall features for precision, performance, and durability:

  • High-speed performance motors reach speeds ranging from 3,600 RPM to 30,000 RPM
  • Motor power ratings are rated for continuous duty
  • Lifetime lubricated, high precision bearings
  • Motors are designed for exacting and precise grinding applications on materials including wood, metals, and composites
  • Narrow motor design allows for small axial distances between the grinding wheel and machine shaft for ultimate precision when attaining extremely small tolerances
  • Careful dynamic balancing to ensure micron-quality run-out tolerances and precision cutting performance
  • Varying collet capabilities and types accommodate different grinding wheel sizes with a maximum tool shank up to 1 inch (depending on motor design)
  • Direct tool mounting options include outside tool shank with inside bore, collet and covernut, and HSK-C
  • On boring/drilling-specific motors, shaft design can incorporate an outside taper, inside bore, and outside thread or a collet and covernut

Click to download the Perske Special Application Motors data sheet. To find out more about Perske Special Application Motors, call 800.526.4066 and speak to a representative.

Motors for Boring, Drilling, Grinding, and Machining.

Motors for Boring, Drilling, Grinding, and Machining.

Maximum precision for a range of critical functions

KN 200.5 to 1.030,0001/2"YNYY
KRS 351.0 to 3.018,000*1/2"*Available in 30,000 RPMYNNN
KRS 504.0 to 6.518,0005/8"YYNN
KRSV 516.518,0001"YNYY
KRS 609.018,0003/4"YYNY
KRSV 619.018,0001"YNYY
KN 504.0 to 6.518,0005/8"†HSK-C OptionalYO†NN
KN 609.018,0005/8"†HSK-C OptionalYO†NN
KNO 7010 to 1718,0001"YYYY
VS 50/602.0 to 7.024,0001/2"YNYY
WS 50/601.0 to 3.524,0001/2"Non-ventilatedYNNN
Tool Systems
  • Saw collars/flanges with threaded nut (RH or LH)
  • HSK-C
  • Hydro-clamp chuck system
  • Cylindrical shaft with or without key
  • Cylindrical shaft with or without key and outside thread
  • Cylindrical shaft with or without key and inside thread


  • 60 HZ (3,600 RPM) standard (Some motors are capable of running up to 7,200 RPM)
  • Electrical performance data (HP) are only valid for the stated constant frequency Voltage
  • 230/460V standard according to DIN/VDE regulations; however, other voltage options are available including 575V for Canada


  • Lifetime lubricated, high precision bearings (where required)
  • Drive end bearing is fixed and non-drive end bearing is self-aligning
  • With heavy tooling, double bearing arrangements are recommended for front bearing position to eliminate axial shaft play


  • TEFC motors are self-ventilated with a built in fan which works most effectively at the motor’s maximum operating speed
  • Labyrinth seals at both ends of the motor to protect against dust or particle penetration into the motor when under power
  • Motors are balanced to a vibration speed of Veff = 1.8 mm/sec at zero load and rated operating speed
  • Terminal box can be located on right or left side pending customers preference
  • An electromechanical brake can be integrated as an option
  • Motors are available according to NEMA standards
Tool Systems

Looking for a Custom Motor?Contact us or call 800.526.4066.

Products Catalogs and Sheets


If you have any queries regarding ordering, sizing of hoses, and type of motors, glance through our answers for common queries.



Browse through our various spec sheets and catalogs, to find which suits you the best.