1MS160F-4U-A1 Bosch Rexroth Indramat
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MPN: R911251938
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The Bosch Rexroth Indramat 1MS160F-4U-A1 is a stator for the 1MB High-Speed Asynchronous Motors series. It features liquid cooling with an aluminum cooling jacket and a frame size of 160. The stator has a fit diameter of 177 mm, an outer diameter of 180 mm, and uses a 1.5 meter connection cable conducted through the stator end.
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Product Description:
The 1MS160F-4U-A1 is a frameless stator element produced by Bosch Rexroth Indramat for the 1MB High-Speed Asynchronous Motors series. As a stator for a 1MB spindle motor, it forms the stationary electromagnetic field that drives high-speed machine-tool spindles and other precision axes in automated production lines. The part is supplied with an aluminum cooling jacket and is intended for integration into liquid-cooled housings where compact size, direct integration, and thermal stability are critical to spindle performance.
An axial mounting interface with 8x M5 threaded holes allows the stator to be anchored to the machine frame without additional brackets. Power is delivered through a 1.5 m loom that exits the stator end, keeping cable routing short inside the spindle housing and reducing unused lead length within the assembly. Coolant enters through a port machined to R1/2 pipe thread, which matches common hydraulic fittings and simplifies plumbing to the external chiller. The cooling jacket is made of aluminum, a material that combines low mass with good thermal conductivity so heat from the windings is transferred quickly to the circulating fluid. Active temperature control is provided by liquid cooling, which supports continuous high-speed operation without overheating and helps maintain stable winding resistance during sustained use.
The degree of protection is rated at IP00, which means the unit must be enclosed by the machine builder to prevent accidental contact and limit contamination inside the spindle assembly. A stator fit diameter of 177 mm mates with the corresponding rotor gap, while the outer diameter of 180 mm sets the bore required in the spindle sleeve. Frame size code 160 and motor length code F indicate the electromagnetic stack height used for this motor and the general proportions of the stator body. The supplied O-ring is made of Viton, which helps seal the coolant jacket against the housing and resists cutting fluids and elevated temperatures often found in machining centers.
Frequently Asked Questions about 1MS160F-4U-A1:
Q: What cooling method does the 1MS160F-4U-A1 stator use?
A: The 1MS160F-4U-A1 uses a liquid cooling system to efficiently manage operating temperatures.
Q: What is the stator fit diameter of the 1MS160F-4U-A1 stator?
A: This model features a stator fit diameter of 177 mm, ensuring compatibility with specific motor assemblies.
Q: What is the cooling jacket material on the 1MS160F-4U-A1 stator?
A: The 1MS160F-4U-A1 stator uses an aluminum cooling jacket to provide thermal conductivity and structural strength.
Q: What connection cable is provided with the 1MS160F-4U-A1?
A: This stator comes with a 1.5 meter connection cable pre-installed and conducted through the stator end.
Q: What level of protection does the 1MS160F-4U-A1 provide against dust and water?
A: The degree of protection for the 1MS160F-4U-A1 stator is IP00, which means it does not have protection against solid objects or water.
