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HighForce ZTRS Precision Rack & Pinion Drive Systems


We are pleased to announce a new range of HighForce ZTRS Precision Rack & Pinion Drive Systems that can handle highly dynamic and heavy loads.  These systems utilize our Precision Planetary Reducers with an integral output housing and outboard bearing to provide a rigid support to the output pinion.

Typically, reducers with output flanges are limited in the forces they can transmit by the tilting moment that the output bearings can handle.  By adding an output bearing housing, this limitation is removed.    Also, the unique design of the pinion allows for smaller pitch diameters, which decreases the torque on the reducer.  Because of these design enhancements, a smaller reducer can typically be used.

These drives are perfect for a wide range of applications, including axis drives requiring precise positioning & repeatability, traveling gantries & columns, pick & place robots, CNC routers and material handling systems.  Heavy loads and duty cycles can be easily handled with this drives.

Systems Overview  |  PDF Catalog  |  Lubrication Systems  |  Application Sheet
 

System Construction:

The helical pinion is case-hardened & ground to a quality of DIN 5 with a concentricity of less than 10 microns.

The output housing minimizes any deflection of the pinion away from the rack, increasing the linear stiffness of the system by 300%, as well as increasing the power density of the system.  The housing can also mount a felt gear applicator to provide continuous grease lubrication of the pinion.

The planetary reducers are available in ratios from 4:1 to 100:1 and backlash levels down to one arc-minute.  The reducers can also be offered in right-angle versions to fit into most designs.
 

Systems Accuracy:

The system accuracy, including the pitch error and backlash, can be found below:

System Precision Level: Rack Type: Rack Quality Level: Rack Pitch Error: Rack & Pinion Minimum Backlash: *
High Hardened & Ground DIN 4 to 6
(~AGMA 12+)		 < 0.012 to 0.048 mm
per meter		 0.02 mm

* The rack and pinion backlash depends on the alignment of the rack to the linear guides.

There are three levels of precision for the hardened & ground racks, with rack pitch error ranging from 0.012 mm to 0.048 mm per meter length depending on which rack is used.  Follow this link for more information on our Precision Racks.

 

System Specifications:

The maximum drive force that each system can handle (with safety factor 1.0) is listed below; this should be compared to the application peak force, which can be calculated here , or by filling out our Application Sheet.

For dimensions, please click on the "Reducer Size" in the left column.

Reducer Size: Rack & Pinion Module: # of Pinion Teeth: Maximum Drive Force: * Maximum Linear Speed with 3,000 rpm Motor:
7
 2 23 3,900 lb. 4,528 in/min
2 29 4,200 lb. 5,709 in/min
3 17 5,000 lb. 5,020 in/min
8
 3 26 6,500 lb. 7.677 in/min
3 32 6,600 lb. 9,449 in/min
4 20 10,500 lb. 7,874 in/min
5 16 10,000 lb. 7,874 in/min
9
 5 20 13,100 lb. 3,281 in/min
6 16 15,000 lb. 3,150 in/min
6 20 17,600 lb. 3,937 in/min
8 15 17,600 lb. 3,937 in/min
10
 8 19 20,900 lb. 4,987 in/min
10 15 21,100 lb. 4,921 in/min
10+ 8 19 27,800 lb. 4,987 in/min
10 15 28,200 lb. 4,921 in/min

* Force ratings do not include any safety factors.  Maximum drive forces vary depending on gearbox ratio selected.

 

Other Products Available:

Ultra-High Precision, Zero-Backlash Rack & Pinion Drive Systems, for applications requiring ultra-precise positioning and repeatability, the system backlash can be eliminated by using a split-pinion or dual pinions.



 High-Precision Hardened & Ground Rack & Pinion Drive Systems, utilizing our our precision Planetary and Servo-Worm Reducers, which have backlash levels down to one arc-minute, to rigidly support and drive a hardened & ground pinion.  The rack used in these systems are our Hardened & Ground Racks.
 

Copyright 2004 - 2012 Atlanta Drive Systems, Inc., Phone: (800) 505-1715, Email: info@atlantadrives.com

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