Siemens Building Technology ASK71.9 Crank Arm
The Siemens Building Technology ASK71.9 Crank Arm is a heavy-duty mechanical link designed for HVAC damper actuator retrofits and linear-to-rotary motion conversions. This universal crank arm provides a critical interface for damper shaft coupling in applications where direct ball joint connections are physically restricted or space-constrained. Engineered to support Siemens OpenAir actuators, it fits damper shaft sizes ranging from 3/8 to 1 inch (9.5 to 25 mm), ensuring versatile field compatibility. When used with accessories like the ASK71.11, ASK71.13, or ASK71.14 mounting kits, this component enables rigid mounting of GMA, GEB, GCA, GBB, and GIB series actuators to flat surfaces or frames. The die-cast construction is built for high-torque performance, handling up to 310 lb-in in industrial environments. By facilitating precise linear stroke transfer to rotary movement, the ASK71.9 allows technicians to maintain accurate airflow modulation and HVAC motion control without specialized custom brackets.
Key Benefits- Universal Compatibility: Adjustable clamp design secures to 3/8" to 1" round or square damper shafts.
- Rotary to Linear Conversion: Specifically designed to convert rotary damper actuator motion into linear travel for remote-mounted linkage.
- OpenAir Series Integration: Optimized for use with GCA, GBB, GIB, and GMA actuator series for seamless system retrofitting.
- Robust Connection: Supports 8mm (5/16") diameter push rods when paired with standard ball joints (sold separately).
Which shaft sizes does the ASK71.9 support?
It is designed to fit a variety of damper shafts from 3/8 inch up to 1 inch (9.5 mm to 25 mm).
Does this kit include the damper push rod?
No, the ASK71.9 is the crank arm assembly only; damper push rods and ball joints must be sourced separately based on the required stroke length.
Can I use this with non-Siemens actuators?
While designed for Siemens OpenAir hardware, this is a universal crank arm that can be adapted to any linkage-style actuator providing compatible torque and travel.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $60.40
-65%$60.40
$21.14Siemens Building Technology ASK71.9 Crank Arm
The Siemens Building Technology ASK71.9 Crank Arm is a heavy-duty mechanical link designed for HVAC damper actuator retrofits and linear-to-rotary motion conversions. This universal crank arm provides a critical interface for damper shaft coupling in applications where direct ball joint connections are physically restricted or space-constrained. Engineered to support Siemens OpenAir actuators, it fits damper shaft sizes ranging from 3/8 to 1 inch (9.5 to 25 mm), ensuring versatile field compatibility. When used with accessories like the ASK71.11, ASK71.13, or ASK71.14 mounting kits, this component enables rigid mounting of GMA, GEB, GCA, GBB, and GIB series actuators to flat surfaces or frames. The die-cast construction is built for high-torque performance, handling up to 310 lb-in in industrial environments. By facilitating precise linear stroke transfer to rotary movement, the ASK71.9 allows technicians to maintain accurate airflow modulation and HVAC motion control without specialized custom brackets.
Key Benefits- Universal Compatibility: Adjustable clamp design secures to 3/8" to 1" round or square damper shafts.
- Rotary to Linear Conversion: Specifically designed to convert rotary damper actuator motion into linear travel for remote-mounted linkage.
- OpenAir Series Integration: Optimized for use with GCA, GBB, GIB, and GMA actuator series for seamless system retrofitting.
- Robust Connection: Supports 8mm (5/16") diameter push rods when paired with standard ball joints (sold separately).
Which shaft sizes does the ASK71.9 support?
It is designed to fit a variety of damper shafts from 3/8 inch up to 1 inch (9.5 mm to 25 mm).
Does this kit include the damper push rod?
No, the ASK71.9 is the crank arm assembly only; damper push rods and ball joints must be sourced separately based on the required stroke length.
Can I use this with non-Siemens actuators?
While designed for Siemens OpenAir hardware, this is a universal crank arm that can be adapted to any linkage-style actuator providing compatible torque and travel.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens Building Technology ASK71.9 Crank Arm is a heavy-duty mechanical link designed for HVAC damper actuator retrofits and linear-to-rotary motion conversions. This universal crank arm provides a critical interface for damper shaft coupling in applications where direct ball joint connections are physically restricted or space-constrained. Engineered to support Siemens OpenAir actuators, it fits damper shaft sizes ranging from 3/8 to 1 inch (9.5 to 25 mm), ensuring versatile field compatibility. When used with accessories like the ASK71.11, ASK71.13, or ASK71.14 mounting kits, this component enables rigid mounting of GMA, GEB, GCA, GBB, and GIB series actuators to flat surfaces or frames. The die-cast construction is built for high-torque performance, handling up to 310 lb-in in industrial environments. By facilitating precise linear stroke transfer to rotary movement, the ASK71.9 allows technicians to maintain accurate airflow modulation and HVAC motion control without specialized custom brackets.
Key Benefits- Universal Compatibility: Adjustable clamp design secures to 3/8" to 1" round or square damper shafts.
- Rotary to Linear Conversion: Specifically designed to convert rotary damper actuator motion into linear travel for remote-mounted linkage.
- OpenAir Series Integration: Optimized for use with GCA, GBB, GIB, and GMA actuator series for seamless system retrofitting.
- Robust Connection: Supports 8mm (5/16") diameter push rods when paired with standard ball joints (sold separately).
Which shaft sizes does the ASK71.9 support?
It is designed to fit a variety of damper shafts from 3/8 inch up to 1 inch (9.5 mm to 25 mm).
Does this kit include the damper push rod?
No, the ASK71.9 is the crank arm assembly only; damper push rods and ball joints must be sourced separately based on the required stroke length.
Can I use this with non-Siemens actuators?
While designed for Siemens OpenAir hardware, this is a universal crank arm that can be adapted to any linkage-style actuator providing compatible torque and travel.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
