Gear Units

CSG-2UK High Torque Fully Sealed Gear Reducer

High torque fully sealed high accuracy gear reducer for machine tool applications with Fanuc motor compatibility

ModelCSG-2UK
SeriesCSG Gear Unit Series
Global Stock Network Custom Gear Ratios Application Engineering STO Safety Compliant
CSG-2UK product image 1
CSG-2UK
Model

CSG-2UK · 1 product image· Contact LVH for CAD files

Product Overview

The CSG-2UK is a high torque fully sealed gear reducer for machine tool applications. Compatible with Fanuc motors. 6 sizes 25-65mm with ratios 50:1 to 160:1. Repeated peak torque 127 to 3419 Nm.

The CSG-2UK is a precision zero-backlash gear unit designed for compact motion systems requiring high torque density, repeatable positioning, and simplified mechanical integration.

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Outer Diameter
⚖️
Weight
🔩
Hollow Shaft
💪
Max Torque
🔄
Max Speed
⚙️
Gear Ratios
See product specs
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Output Type
Precision gear unit

Precision Gear Unit Architecture

Harmonic Drive gear units deliver zero backlash, high torque density, and exceptional positioning accuracy in a complete housed assembly. The cross roller output bearing directly supports loads without additional bearings, simplifying mechanical design and reducing system cost.

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Zero Backlash

Strain wave gear principle eliminates all backlash for bidirectional positioning without dead band.

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High Torque Density

Compact housing delivers high repeated peak torque relative to size and weight.

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Cross Roller Output

Integrated cross roller bearing supports radial, axial, and moment loads directly.

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High Accuracy

Standard accuracy less than 1 arc-min across the full range of available sizes.

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High Stiffness

Torsional stiffness K1/K2/K3 data available for all sizes for system compliance analysis.

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Compact Housed Assembly

Complete housed gear unit reduces external support hardware and simplifies mechanical integration.

Typical Applications

The CSG-2UK suits robot joint axes, rotary index tables, semiconductor wafer handling stages, machine tool rotary axes, precision gantry drives, and any application requiring zero backlash speed reduction with direct load attachment.

Key Specifications

Critical performance parameters at a glance

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25, 32, 40, 45, 58, 65 mm
Frame Sizes
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50:1 to 160:1
Gear Ratios
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Compatible with Fanuc servo motors
Motor Compatibility
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127Nm
Size 25 Ratio 50 Repeated Peak Torque
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3419Nm
Size 65 Ratio 160 Repeated Peak Torque

Technical Specifications

Overview

Frame Sizes
25, 32, 40, 45, 58, 65 mm
Gear Ratios
50:1 to 160:1
Motor Compatibility
Compatible with Fanuc servo motors

Size 25

Size 25 Ratio 50 Repeated Peak Torque
127 Nm

Size 65

Size 65 Ratio 160 Repeated Peak Torque
3419 Nm

Product Attributes

Product Type
Fully Sealed Gear Reducer
Motor Compatibility
Fanuc compatible
Manufacturer
Harmonic Drive LLC

Industrial Applications

These precision gear units are used in robotics, automation, indexing, and motion-control systems where compact size, high reduction ratios, and low backlash are important.

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Robotic Joint Drives

Used in articulated robots and cobots where compact reduction, repeatability, and torsional stiffness are needed at shoulder, elbow, and wrist axes.

RoboticsCompactLow backlash
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Industrial Automation

Supports servo-driven automation modules, transfer systems, and precision machinery requiring stable motion transmission and high positional repeatability.

Servo systemsFactory automationRepeatability
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Indexing & Positioning

Applied in rotary stages, indexing tables, and positioning assemblies where precise angular motion and stable output characteristics matter.

PositioningIndexingPrecision
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Precision Equipment

Fits compact motion systems in semiconductor, optical, and laboratory equipment where size, smooth motion, and integration quality are critical.

SemiconductorOpticsCompact
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Mobile Robotics

Used in AGVs, AMRs, and service robots where efficient packaged motion reduction helps simplify drivetrain or auxiliary-axis integration.

AGVAMRDrive systems
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Custom Machinery

Integrated into OEM machine builds that need reliable high-ratio motion reduction with predictable performance and a compact footprint.

OEMMachine buildersMotion control
Customization Available

Factory Modification & Custom Sourcing

This product supports custom configurations and equivalent sourcing

Available Modifications

  • Torque and speed ratio customization
  • Mounting interface modifications
  • Connector and wiring specifications
  • Housing and enclosure options

Sourcing Options

  • Standard product sourcing
  • Equivalent product identification
  • Replacement part sourcing
  • Volume pricing (MOQ may apply)

Request Pricing & Availability

Submit an RFQ for standard products, custom configurations, or equivalent alternatives

Expert Answers

Frequently Asked Questions

Technical answers sourced from engineering specifications and integration guides.

The CSG-2UK is a fully sealed high torque gear reducer designed for machine tool applications and compatible with Fanuc servo motors.

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