ADF134B-B05TA0-BS17-A2N1
ADF Main Spindle Motors
ADF134B-B05TA0-BS17-A2N1, Bosch Rexroth Indramat, ADF Main Spindle Motors is a high-performance main spindle motor engineered for precision and durability in demanding industrial contexts. This motor delivers a nominal output of 20 kilowatts at a nominal torque of 96-newton meters while operating on a nominal current of 68 Amperes. It features a broad speed range from 2000 min^-1 up to 7000 min^-1 for versatile machining or milling applications. Integrated within the robust design is a digital servo system providing multiturn absolute encoder feedback to ensure exact position tracking across multiple revolutions.
Built around liquid-cooled asynchronous motor architecture, this unit incorporates a flange mounting interface and a plain shaft design for straightforward integration into existing machinery. Power delivery is routed through a connector/plug housed on Top, with the Output Connector: Side A matching the Power Connection Direction: To Side A specification. The heat management subsystem relies on an Axial coolant connection with 1/4" thread, maintaining coolant temperatures between 10 °C and 40 °C to optimize thermal stability. Bearings are of the Standard roller-lubricated type, balanced to R DIN ISO 2373 quality for vibration suppression and a service life exceeding 20,000 hours. A dedicated electrically actuated clamping holding brake delivers a Brake Holding Torque: 100 Nm and safely dissipates braking energy up to 30,000 W. Additional robustness is provided by the Lock-proof Winding Code: BS and the omission of a second shaft end (Side B Shaft End Configuration: Without second shaft end) for simplified sealing.
Engineers will appreciate how the Digital servo feedback pairs seamlessly with modern CNC controllers for closed-loop position control, reducing commissioning time and calibration drift. The combination of liquid cooling, standard bearings, and precise encoder feedback enhances reliability and uptime in continuous production environments. This spindle motor’s modular mounting and standardized power connections simplify replacement and scalability, making it ideal for high-speed milling, grinding, and precision machining applications.
Technical Specifications
Balance Quality
R DIN ISO 2373
Bearing Type
Standard
Coolant Connection Type
Axial with connection thread 1/4"
Shaft Design
Plain shaft
Shaft Seal Ring
Without
Brake Holding Torque
100 Nm
Holding Brake Configuration
electrically actuated clamping holding brake
Mounting Type
Flange mounting
Feedback System
Digital servo feedback w/ integrated encoder
Motor Length
B
Motor Size
134
Power Connection Direction
To Side A
Power Connection Type
Connector/Plug
Power Connection Housing Position
Top
Product Type
Liquid-cooled asynchronous motors
Side B Shaft End Configuration
Without second shaft end
Winding Code
BS
Output Connector
Side A
Common Misspellings
Shipping & Payment Options
Warranty
Repair
We offer a repair service for the ADF134B-B05TA0-BS17-A2N1. 
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