REXROTH CKK-145-NN-1 Compact Ball Screw Linear Module

Description

REXROTH CKK-145-NN-1 Compact Ball Screw Linear Module

Product Dimensions：

The Bosch Rexroth CKK-145-NN-1 is a high-precision, heavy-duty Compact Linear Module engineered for demanding positioning and handling tasks. Combining dual integrated linear ball rail systems with a precision ball screw drive inside a rigid aluminum main body, it delivers high load capacity and exceptional repeatability in multi-axis automation setups.

Technical Specifications

Key Advantages

• High Load Capacity: The dual parallel rail design distributes torsional (M_x) and moment (M_y, M_z) loads evenly across four runner blocks, offering superior rigidity compared to single-rail linear actuators.
• Compact Cross-Section: Provides maximum stroke-to-length efficiency in tight machine footprints without compromising structural stiffness.
• Effective Contamination Protection: Equipped with a top seal cover strip that shields internal ball rails and the ball screw from dust, chips, and foreign debris.
• Flexible Motor Mounting: Supports direct inline motor mounting via couplings or side-by-side mounting via timing belt side-drives to conserve axial length.

Important Considerations & Precautions

• Critical Speed Limitations: Pay close attention to maximum rotational speed (n_{max}) limits on longer stroke lengths to prevent ball screw whipping and resonance.
• Lubrication Maintenance: Ensure regular re-greasing of both the runner blocks and the ball screw nut using Rexroth-approved lithium soap grease via the dedicated lube ports.
• Vertical Axis Brake: When mounting vertically (Z-axis), the module is not self-locking due to low ball screw friction; always use a motor with an integrated holding brake to prevent gravity fall on power loss.
• Installation Surface Flatness: Mount the module profile on a smooth, fully supported machined base surface to avoid twisting or binding the internal linear guides during installation.

Target Applications

• Cartesian Gantry Systems: Operating as the high-capacity base (X-axis) or crossbeam (Y-axis) in 2D and 3D multi-axis automation gantries.
• Pick-and-Place Automation: High-speed material handling, palletizing, and part loading/unloading.
• Precision Machine Tool Auxiliaries: Positioning stages for dispensing, laser cutting, automated inspection, and light assembly lines.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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