MRS162B-1N-0068-NNNN Bosch Rexroth Indramat
Wake Industrial LLC is not an authorized distributor of this product.
The Bosch Rexroth Indramat MRS162B-1N-0068-NNNN is a rotor from the MRS Synchronous IndraDyn H Motors series. It has an internal diameter of 68 mm, a total length of 186 mm, and features plain drilling mounting style. The rotor has insulation class F and a protection rating of IP00, with a standard smooth rotor drilling.
Internal Product Review
The MRS162B-1N-0068-NNNN is an IndraDyn H synchronous spindle motor rotor built for accurate, stable spindle operation. A standard design variant with plain drilling supports straightforward mechanical integration in spindle assemblies. Smooth rotor drilling and Class F insulation make this rotor a strong choice for controlled industrial installations.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The MRS162B-1N-0068-NNNN is a rotor subassembly produced by Bosch Rexroth Indramat for integration into the MRS Synchronous IndraDyn H Motors series. As the rotating element of a synchronous spindle motor, the rotor interacts with the stator’s electromagnetic field to deliver the speed and torque stability required in CNC machining centers and automated production spindles. It fits the mechanical envelope for IndraDyn H frame class 162, providing the central rotating component around which the completed motor is assembled.
The rotor matches frame size 162, so its outside diameter and balance tolerances fit housings in that frame category. An inside bore of 68 mm provides the shaft seat and accommodates large spindle diameters or hollow-shaft cooling paths. Magnetic material extends along an iron length of 150 mm, establishing the active axial section that couples with the stator field. Thermal endurance is supported by Insulation Class F, permitting continuous operation when winding temperatures approach 155 °C. Because no seals or covers are integrated, the unit carries an IP00 rating, meaning protection must be provided by the surrounding motor housing. The design uses the standard variant, while frame length code B keeps the overall length within the range used for compatible IndraDyn H motor assemblies.
The rotor body has an overall length of 186 mm, positioning the magnet stack while leaving space for bearing journals and tool-clamping hardware. Installation uses a plain drilling pattern that allows the component to sit flush against the shaft shoulder. The bore has a standard smooth rotor drilling, allowing the machine builder to select a suitable shrink-fit or adhesive bonding process. Operation is permitted within an ambient temperature range of 0–40 °C, keeping the magnetic and mechanical properties within tolerance under typical shop-floor conditions. The rotor must be installed inside a suitable motor housing that supplies the physical protection absent from the open subassembly. Correct alignment of the bore, shaft shoulder, and magnetic stack supports stable rotation when the completed spindle motor operates at speed.
