JMR & JSR Series Rack Jacks: High-Speed Bidirectional Drive

1. Product Overview

The Rack Jack is one of the most versatile actuation devices, capable of seamless bidirectional conversion:

• Rotary to Linear: Converts input shaft rotation into rack travel.

• Linear to Rotary: Converts rack movement back into shaft rotation.

Designed to optimize speed and efficiency, this series is the ideal choice for push-pull mechanisms or rapid lifting in confined spaces.

2. Key Features of the JMR & JSR Series

• Superior Linear Speed: Enables the rack to move at high velocities even with low input shaft speeds. Maximum travel speeds can reach up to 8000 mm/min.

• Optimal Mechanical Efficiency: With an efficiency rating of up to 0.90, these units minimize energy loss during power transmission.

• Flexible Installation: The housing features two mounting surfaces (parallel or perpendicular to the rack’s direction of travel), allowing engineers to integrate the unit easily into various machine structures.

• Diverse Shaft End Options: Offers 3 types of shaft ends to suit any connection requirement. Additional support for bellows (dust covers), limit switches, and RC encoders is available.

• Safety Note (Non-Self-Locking): Due to high efficiency and low friction, this series is not self-locking. A braking system must be equipped to hold the position when the load is stopped.

3. Technical Specifications

Detailed parameters for the JMR and JSR models:

4. Common Applications

JMR/JSR Rack Jacks are the premier choice for:

• High-Speed Automatic Doors: Actuation for bay doors or machine safety gates.

• Workpiece Feeding Systems: Pushing or ejecting parts in production lines.

• Energy Conversion: Converting linear thrust into rotary motion to drive generators or rotating mechanisms.

• Material Handling: Rapid positioning for sorting conveyors.