Go to GlobalSpec.com Home
 

Free Registration 
Download Engineering Toolbar
GlobalSpec Home
Find:      Advanced Search >>
Alert Product Alerts
Keep current on the latest products, new suppliers, and technical articles of interest to you. (See Topics)


About Rack and Pinion Drives

Find Products and Suppliers for
Rack and Pinion Drives
See catalogs for
Rack and Pinion Drives
Search product announcements for
Rack and Pinion Drives
Search by part number
 
Research
Rack and Pinion Drives
See All Engineering Web Results for
Rack and Pinion Drives

Limit your Web search to:
- Application Notes
- Material Properties
- Patents
- Standards
Show all Rack and Pinion Drives manufacturers
Search for Rack and Pinion Drives by specification

Rack and pinion drives use a rotational motor to affect linear motion via a rack and pinion combination. They are used frequently in long-travel applications, such as machine tool table positioning, that require high stiffness and accuracy. There are two gearing configurations for rack and pinion drives: straight tooth and helical tooth. Straight tooth gears contain teeth that run parallel to the axis of the gear. Load movement or transfer is manual or walk-behind. Helical tooth gears provide continuous engagement along the tooth length and are often quieter and more efficient than straight tooth gears. Helical tooth gears resemble spur gears in the plane of rotation, but include teeth that are twisted along a helical path in the axial direction. The American Gear Manufacturers Association (AGMA) publishes quality-level standards for gears based on pitch variation, profile error, and tooth alignment accuracy. Quality levels are defined in the AGMA 2000-A88 Gear Classification and Inspection Hand Book. In general, higher quality levels indicate higher quality gears. For example, AGMA 8 and 9 describe lapped gear teeth. AGMA 10 describes automotive-quality gears with high degrees of strength and dimensional refinement. AGMA 11 describes gears with hardened and ground teeth that are particularly well-suited for rack and pinion drives.  

Selecting rack and pinion drives requires an analysis of performance specifications, preload configurations, and special features. Axis drive force is the maximum drive force for which devices are rated. The rating represents the torque of the motor transmitted through the pinion to the rack. Axis weight rating, another important performance specification, is the rated weight for the driven axis. There are three preload configurations for rack and pinion drives. Split pinions contain a torsion spring or other anti-backlash mechanism that enables the pinion to load both sides of the rack simultaneously. Mechanical preloading consists of a drive pinion and a second preload pinion and gearbox. To maintain preloading and eliminate backlash, the preload assembly applies an opposing force to the drive assembly. Electrical preloading consists of a drive pinion and motor, as well as a second pinion/motor assembly that applies an opposing or braking force. The opposing motor can take over during deceleration, smoothing carriage stops and reversals. In terms of special features, rack and pinion drives with an integral rack and rail include teeth that are machined or ground directly onto the moving element to increase power transmission efficiency. With ground teeth, the gearing features hardened teeth that provide a precise fit and smoother operation.


Other Topics You Might Be Interested In
The American Gear Manufacturers Association (AGMA) publishes quality-level standards for gears based on pitch variation, profile error, and tooth alignment accuracy. Quality levels are defined in the... (Read More)
A CNC router manufacturer had been using low-quality spur racks for years on their machines. The racks worked fine and provided decent accuracy, but their customers kept requesting better accuracy and... (Read More)
Often when you see an "S" in our model designations, such as RFS, RHS, CSF, or SHF, we are telling you that our patented gear toothform is being used. This new tooth profile has been developed through... (Read More)

Engineering Web: Rack and Pinion Drives
Pages: 1 - 5 of 262143
Rack and Pinion Drives
Home->Drives->Rack and Pinion. Search Tips.  . Andantex USA Company Profile.  . Refined 'Drive' Categories. *Conveyor Drives. *Electric Drives. *Gear Drives. *Gearmotor Drives. *Helical Drives. *High-Torque ...
See Zycon Industrial Directory Information
Rack-And-Pinion Drives
Rack-And-Pinion Drives A wide range of helical and straight (spur) tooth rack-and-pinion drives are available off the shelf. The drives handle such applications as axes requiring precise positioning ...
Rack and Pinion Drives
Rack and Pinion Drives Related Information: Atlanta Drive Showcases Rack and Pinion Drives at IMTS. New Rack and Pinion Drives from Atlanta Drive Systems. Additional Rack and Pinion Drives Suppliers. ...
See Gear Technology (The Journal of Gear Manufacturing) Information
Rack and Pinion Drives
Rack and Pinion Drives Power Transmission Home > Linear Motion Devices > Rack and Pinion Drives. To request information or a Quote from any of the suppliers of Rack and Pinion Drives listed below, ...
New Rack and Pinion Drives from Atlanta Drive Systems
New Rack and Pinion Drives from Atlanta Drive Systems Zero backlash standard rack & pinion drives that utilizing a split- and dual-pinion arrangement are now available from Atlanta Drive Systems. ...

Part Numbers for Rack and Pinion Drives

Part # Distributor Manufacturer Product Category Description
TP-004   alpha gear drives, Inc. Rack and Pinion Drives Optimized smooth, low noise level, and compact design
SP-060   alpha gear drives, Inc. Rack and Pinion Drives Optimized smooth, low noise level, and compact design
SP-140   alpha gear drives, Inc. Rack and Pinion Drives Optimized smooth, low noise level, and compact design
SP-075   alpha gear drives, Inc. Rack and Pinion Drives Optimized smooth, low noise level, and compact design
SP-100   alpha gear drives, Inc. Rack and Pinion Drives Optimized smooth, low noise level, and compact design

More >>
See more product announcements for Rack and Pinion Drives
Right Angle Gearheads from alpha

Right Angle Gearheads from alpha
alpha gear drives, Inc.


Modular Rack & Pinion System

Modular Rack & Pinion System
Andantex USA, Inc.


ATLANTA Integrated Rack & Rails

ATLANTA Integrated Rack & Rails
Atlanta Drive Systems, Inc.


11 See more product announcements for Rack and Pinion Drives

Of Interest
  Discuss Rack and Pinion Drives
  Search the Engineering Web
  Search By Part Number
  Application Notes
  Find Product Announcements for Rack and Pinion Drives
  Sign up for Product Alerts related to Rack and Pinion Drives

Related Keywords
rack and pinion
AGMA
gearbox pinion
rack and pinion gear
Rack And Pinion Steering
rack and pinion actuator
alignment rack
rack and pinion design
rack pinion gear
pinion gear ratio
rack and pinion motor
rack and pinion system
rack and pinion drive
rack and pinion table
AGMA 12 rack pinion gear
rack and pinion backlash
rack and pinion mechanism
rack and pinion gearing
rack pinion drive
rack and pinion stage
straight tooth rack pinion
rack and pinion slide
AGMA 8 rack pinion gear
helical tooth rack and pinion
Pinion Drives
split pinion
rack and pinion pitch
AGMA 9 rack & pinion gear
AGMA 11 rack pinion system
AGMA 12 rack and pinion drive
View Rack and Pinion Drives Specifications
Browse Company Directory
View Rack and Pinion Drives Supplier Data Sheets
View Rack and Pinion Drives Featured Products
View Motion and Controls home

View Rack and Pinion Drives Suppliers by State



Home   |   About GlobalSpec   |   Advertise With Us   |   Site Map   |   Top Categories   |   Terms of Use
Privacy Policy   |   Link To Our Site   |   Submit a Site   |   Recommend This Site
©1999-2008 GlobalSpec.  All rights reserved.  GlobalSpec, the GlobalSpec logo, SpecSearch, The Engineering Search Engine and The Engineering
Web are registered trademarks of GlobalSpec, Inc. The Engineering Toolbar and DesignInfo are service marks of GlobalSpec, Inc.
No portion of this site may be copied, retransmitted, reposted, duplicated or otherwise used
without the express written permission of GlobalSpec Inc.   350 Jordan Rd, Troy, NY, 12180