MRS482A-1N-0345-NNNN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat MRS482A-1N-0345-NNNN is part of the MRS Synchronous IndraDyn H Motors series. This standard design rotor features a plain drilling mounting style and a smooth rotor bore. It has an insulation class F and an IP00 protection rating, suitable for ambient temperatures from 0 to 40°C.
Internal Product Review
The MRS482A-1N-0345-NNNN is an IndraDyn H synchronous spindle rotor with a standard design. IP00 protection and Class F insulation support dependable integration in controlled machine environments. Smooth rotor drilling adds straightforward mechanical compatibility, making this rotor a strong spindle replacement option.
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Product Description:
The MRS482A-1N-0345-NNNN rotor assembly is produced by Bosch Rexroth Indramat for the MRS Synchronous IndraDyn H Motors series. Fitted to the spindle shaft of a synchronous motor, it forms the rotating magnetic circuit that converts stator excitation into mechanical speed for CNC machining centers, grinding heads, and other precision automation tasks. Accurate balance and minimal runout allow the unit to operate at the elevated speeds required by high-speed production while maintaining surface quality and tool life.
The rotor can operate at ambient temperatures from 0 to 40 °C, so it can run inside sealed machine enclosures without additional climate control. Its protection rating of IP00 means the part does not include a casing, so the host spindle housing must provide environmental shielding. Materials conform to insulation class F, supporting temperatures up to 155 °C during heavy cutting cycles. The hub uses a plain drilled interface that centers the core on the shaft without threaded fasteners. A smooth rotor bore eliminates keyways that could create stress concentrations at elevated peripheral speeds.
The standard design uses the baseline core geometry for this rotor family. Frame length code A indicates the shortest active stack, providing a lower moment of inertia for rapid spindle acceleration and deceleration. Within the IndraDyn H platform, this compact rotor pairs with matching stators and H-series drives to provide synchronous operation over a broad frequency range. The product is a rotor assembly with permanent magnets, laminations, and press-fit surfaces assembled for mounting on the spindle shaft. Its compact active stack supports applications that require responsive speed changes, while the smooth bore provides an uninterrupted shaft interface. Proper installation within the host motor also provides the enclosure and alignment needed for operation in machining equipment.
