Spindle Motor
High-speed motor for the main machine spindle with speed and torque control from a dedicated drive.
A spindle motor is intended to rotate a machine-tool cutting or work spindle.
Relevant characteristics include maximum speed, continuous and peak torque, winding parameters, and compatibility with a spindle drive or VFD.
An integrated encoder may be used for spindle orientation, rigid tapping, and closed-loop speed control.
Depending on construction, the motor may include a holding brake and different cooling arrangements.
Selection considers flange size, speed range, torque, power, electrical constants, feedback type, and cooling code.
Spindle motors for CNC and industrial equipment.
Spindle Motor
General3
Commercial or technical designation of a manufacturer's product family sharing a common design and compatible characteristics.
Range of tasks and systems for which the manufacturer recommends the component.
Primary function of the device and its intended use as defined by its design and the manufacturer's documentation.
Dimensions6
External horizontal dimension of the product between its outermost lateral points.
External vertical dimension of the product from its lowest to its highest point.
External distance between the foremost and rearmost surfaces of the product.
External linear dimension of the product along its longitudinal direction or principal length axis.
Transverse dimension of a product or its circular element measured through the centre between opposite points of the circumference.
Mass of the product itself, excluding transport packaging, additional accessories, and external equipment.
Mounting and Installation13
Method used to mechanically secure the product to a support, surface, or load-bearing structure.
Installation arrangement permitted by the product design, such as wall-mounted, flush-mounted, floor-mounted, or another specified mounting type.
Permissible spatial orientation of the component during installation and operation.
Indicates whether the design provides for mounting equipment on a DIN rail.
Number of holes provided in the product for mechanical fixing.
Diameter of the hole provided for a fixing element used when mounting the product.
Distance between the centres of mounting holes in the horizontal direction.
Distance between the centres of mounting holes in the vertical direction.
Manufacturer or IEC mechanical frame-size designation.
Motor mounting arrangement designation, for example an IEC IM code.
Nominal output shaft diameter.
Usable or manufacturer-declared output shaft extension length.
Manufacturer or standardized motor mounting flange designation.
Electrical Parameters19
Voltage value assigned to the product by the manufacturer for specified application conditions and characteristics.
Electrical machine technology of the motor itself.
Current assigned to the product by the manufacturer for the declared operating and thermal conditions.
Manufacturer-declared shaft speed at the rated operating point.
Rated active electrical power of the product declared by the manufacturer for specified operating conditions.
Manufacturer-declared shaft torque at the rated operating point.
AC frequency assigned to the product for normal operating conditions.
Maximum short-time motor torque under manufacturer-declared conditions.
Electrical power consumed by the product itself in the declared normal operating mode.
Continuous or specified torque available at zero speed, where applicable.
Maximum permissible mechanical motor speed.
Number of magnetic poles of the motor where applicable.
IEC-style motor duty designation such as S1 to S10.
Declared motor efficiency class such as IE1 to IE5 where applicable.
Maximum short-time motor current under stated conditions.
Motor winding resistance under specified temperature/connection conditions.
Motor winding inductance under specified measurement conditions.
Torque produced per ampere under the manufacturer-defined condition.
Back-electromotive-force constant referenced to 1000 rpm.
Environmental Conditions10
Degree of enclosure protection against access to hazardous parts and ingress of solid objects and water, designated by the IP code.
Class of enclosure resistance to external mechanical impacts designated by the IK code.
Minimum ambient temperature at which normal operation of the product is permitted.
Maximum ambient temperature at which normal operation of the product is permitted.
Minimum ambient temperature permitted during storage of the product while not in operation.
Maximum ambient temperature permitted during storage of the product while not in operation.
Minimum relative air humidity permitted for the declared operating or test condition.
Maximum relative air humidity permitted for the declared operating or test condition.
Indicates whether the product's resistance to vibration has been verified under the declared conditions.
Indicates whether the product's resistance to short-duration mechanical shocks has been verified.
Special Features8
Rotor moment of inertia.
Indicates an integrated motor feedback encoder or measuring system.
Electrical or serial encoder/resolver interfaces accepted by the product.
Indicates an integrated holding brake on the motor.
Rated supply voltage of the integrated motor brake.
Rated holding/braking torque of the integrated motor brake.
Primary cooling method used by the product during normal operation.
Manufacturer-declared IEC 60034-6 cooling designation such as IC411, IC416 or IC71W where applicable.
Standards and Compliance6
Indicates whether the CE marking is applied to the product where applicable.
Indicates whether product compliance with applicable RoHS restrictions on hazardous substances has been declared.
Indicates whether the manufacturer declares product compliance with IEC 60529.
Indicates whether the product has been tested according to applicable methods of the IEC 60068 series.
Manufacturer-declared compliance with IEC 60034-1 rating and performance requirements for rotating electrical machines.
Manufacturer-declared compliance with IEC 60034-30-1 efficiency classifications for line-operated AC motors where applicable.