High-Precision Hardened & Ground Racks

ATLANTA is pleased to expand their wide range of racks to include ultra-high precision DIN 4 and 5 racks, which are precision manufactured in a controlled environment.

Four levels of precision are now available, with pitch accuracies down to 0.012 mm per 1,000 mm length.  This gives the machine designer the flexibility of choosing the desired level of rack precision to meet the application needs.

These racks are available in straight (spur) and helical versions, in modules 2.0 through 12.0, in half meter and one meter lengths.  These racks are ideal for high accuracy applications requiring minimal pitch error over the complete travel length.

The high precision pitch of the racks can eliminate the need for electronic compensation and the high precision parallelism allows for drives with extremely low backlash without the need for preloading.  Used with our Split-Pinions, ultra-precise zero-backlash axis drives can be achieved.

NEW StrongLine Racks utilizes an innovative carburized case-hardening process to increase the strength of the rack, including the tooth flanks and root, which maximizes its power density, stiffness and performance.

Because of the increased power density, a smaller rack size can often be used compared to traditional gear racks, or performance can be increased on existing systems.

The quality levels denote the accuracy of the teeth, which affects the positioning accuracy, backlash and noise level of the rack & pinion set.

Helical Racks:
 

Rack Size	Rack Part Number (click on part number for data sheet)
	DIN 4	DIN 5 StrongLine	DIN 6	DIN 7
Module 1.5	---	---	29.15.105	---
Module 2.0	---	29.25.100	29.20.100	29.20.107
Module 3.0	---	29.35.100	29.30.100	29.30.107
Module 4.0	---	29.45.100	29.40.100	29.40.107
Module 5.0	48.50.105	29.55.100	29.50.105	29.50.107
Module 6.0	48.60.105	---	29.60.105	29.60.107
Module 8.0	48.80.105	---	29.80.105	29.80.107
Module 10.0	48.10.105	---	29.10.105	29.10.107
Module 12.0	48.12.105	---	29.12.105	---

Straight Racks:
 

Rack Size	Rack Part Numbers (click on part number for data sheet)
	DIN 4	DIN 5 StrongLine	DIN 6	DIN 7
Module 2.0	---	28.25.100	28.20.100	28.20.107
Module 3.0	---	28.35.100	28.30.100	28.30.107
Module 4.0	---	28.45.100	28.40.100	28.40.107
Module 5.0	46.50.105	28.55.100	28.50.105	28.50.107
Module 6.0	46.60.105	---	28.60.105	28.60.107
Module 8.0	46.80.105	---	28.80.105	28.80.107
Module 10.0	46.10.105	---	28.10.105	---
Module 12.0	46.12.105	---	28.12.105	---

 

Rack Assembly Kit

To set the pitch in-between rack segments, a companion rack is typically used.  While this works well for most applications, it can induce error into the axis.  This error can accumulate with each rack joint, especially on long axis drives.

When using our Precision Hardened & Ground Racks in high accuracy applications, we recommend using our Rack Assembly Kits to achieve the most accurate pitch in-between rack segments.  The assembly kit consists of a measuring bridge, an adjusting device and magnetic rollers.  With this kit, it is possible to achieve perfect rack joints without adding error to the system.  A video showing how the Rack Assembly Kit is used can be found on our Videos page.

Pinion Gears, consisting of both helical & straight (spur) tooth versions, in an assortment of sizes, materials and quality levels, to meet almost any axis drive requirements.

ISO Flanged Pinions, are provided with ISO 9409-1 flanges to mount directly to our High-Torque (HT) Servo-Worm Reducers and popular planetary gearboxes, such as Alpha TP, Stober PH, Apex AD and Neugart PLF.  This interface provides a tight integration of the pinion to the gearbox output, reducing overhung loading and backlash between the components.  The pinions are easily mounted and replaceable if future repair is needed.

Integrated Racks mount directly to most standard linear guides (HIWIN, IKO, INA, NSK, SKF, Star, THK, etc.), eliminating the need for additional machining and alignment, saving time and money.
 

Servo Reducers are available in five levels of precision to meet any application needs.  Perfect for use in applications that demand high performance, precise positioning and repeatability.  Angular backlash levels down to less than 1 arc-minutes are available as standard.  Optional integral pinion shafts are also available to mount directly to hollow output shaft.