Pinions and gears are available in both diametral and metric module pitches. Rack & Pinion can provide a complete product including finished bores, keyways, ring grooves, milled features, integral shafts, and cluster gears. A variety of materials, metal finishes, and heat treat options are also available.

When you need someone that makes deliveries on time, call Rack & Pinion.

Die cast, permanent and plastic mold ejector racks and pinions are our specialties. What's more, you can count on special pinions and racks for virtually any industrial or commercial use. Just follow the parameters below and your imagination.

Pinions - up to 10-Ft. long by 6-inch OD

Racks - lengths to your specification

Materials -Durable, ground and polished 4140 pre-hardened heat-treated steel (Rockwell "C" 32-34) is standard. Other materials and heat treat options are available.

That's not all. You can select standard racks & pinions from this catalog. Let us know when you need them as a repair item to get your machine up and running fast. Plus, you can have involute and parallel spline shafts made. Special rack tooth forms, along with metric modules, are available too.

And for you that perform injection molding, check out the "Quick Kicker"™ and "Spinner"™ ejector assemblies. So, call right now. Tell us what you need or send prints. Take advantage of a supplier that keeps its promises today. "Spinner" ™ R800 Series Rotary Core Ejector.

QTC offers all types of Helical Gears and Ground Helical Gear. Quality Transmission Components offers over 75 standard Rack & Pinion options for quick delivery. Click on our discriptions for pricing, deliver and specifications through our easy to use e-commerce site.

Click on the Rack and Pinion options below for data sheets specifications, pricing and ordering through our e-store:

• CP Ground Spur Gears & Racks
• CP Spur Gears
• CP Racks
• CP Stainless Steel Spur Gears
• CP Stainless Steel Racks
• CP Round Racks
• CP Metal Flexible Racks

FREE CATALOGS

• Q420

• View the Q420 catalog in html…
• Request Free Print Catalog Q420 (Handbook of Metric Gears)
• Q460

• View the Q460 Catalog (Featuring Over 9,175 Power Transmission Components)…
• Request Free Q460 Print Catalog…

Other Quality transmission Products:

• Spur Gears
• New! Planetary Gearheads
• New! Diametral Pitch Gears
• Helical Gears
• Internal Gears
• Racks
• Racks & Pinions
• Miter Gears
• Bevel Gears
• Screw Gears
• Worms, Worm Gears
• Other Products – Including Pawls & Hubless Ratchets, Gear Couplings and Involute Spline Shafts and Bushings

About Quality Transmission Components:

Since 1985, Quality Transmission Components (QTC) has been a leading supplier of medium and coarse pitch metric gears throughout the United States, Canada and Mexico. QTC is the exclusive North American distributor for Kohara Haguruma Kogyo K.K. (KHK Gear Industry Co., Ltd.) of Saitama, Japan. As Japan's largest independent gear manufacturer, KHK produces over 3600 standardized, medium and coarse pitch metric gears, and gear related items. KHK's modern, ISO 9001:1994 certified facilities utilize sophisticated gear cutting and grinding equipment to serve the gear needs of many Japanese original equipment manufacturers.

Selecting stock metric gears has been simplified since the introduction of QTC's New Catalog, Q420: The Handbook of Metric Gears.

Dual Rack and Pinion Rotary Drive Exhibits High Load Capacity and Resistance to Backlash

Festo Corporation has added the DRQD rotary drive with dual rack and pinion actuation as a highly capable component of its recently introduced Handling and Assembly Technology system. The DRQD lists compact design and high load ratings among its most innovative characteristics. Its efficient design allows for maximum performance within the smallest possible package (for a dual rack and pinion rotary drive). DRQD units are available to support 90°, 180° and 360° maximum rotation, with drive cylinder bore sizes measuring 16, 20, 25 and 32 mm. All of the units can operate with pressures up to 10 bar.

Both pneumatically powered gear racks are driven in different directions simultaneously when in operation, which results in the elimination of backlash at ends of rotation, since one of the racks contacts the end stop, while the other engages the pinion during periods when air pressure is applied. The integration of a buffer sleeve and end stop into a single component provides constant cushioning throughout the pinion shaft's rotation adjustment range (+6° to -20°) per side. Self-adjusting hydraulic shock absorbers with adjustable end position are available for cushioning in applications where large masses or high speeds are involved. End position sensing is accomplished with electronic sensors that neatly mount flush within slots machined into the aluminum housing.

An air "though-feed" feature provides a means to supply air to tooling mounted to the rotating pinion shaft. This option facilitates the implementation of grippers or other devices operated by pneumatic technology.

Bearing load capacity of the DRQD series is ideal for applications where the CG changes as a result of robotic wrist or compound theta axis motion, or on-the-fly movements, where inertial conditions cause axial and radial force transfers. Competitive models with similar load capability exhibit drastic differences between their radial and axial maximums.

The DRQD rounds-out Festo's rotary actuator product range for the popular Handling and Assembly Technology (HAT), while offering the benefits inherent in linear to rotary actuation devices, such as freedom from backlash, high accuracy and repeatability, extreme torsional rigidity and high torque capability in a compact package.

Introductions…

Using the same high quality components that have set the industry standards for over forty years, Bison is proud to introduce our new 562 series hollow shaft gearmotor.

RobusticityTM…

Increased low speed center distance, coupled with greater clearance for wider faced gears, the 562 allows users to obtain close to twice the continuous torque ratings! (1100 in-lbs. continuous vs. competitor's 600 in-lbs.) Also, the 562 offers an optional 4th stage of gear reduction; providing ratios up to 2200:1 in the same envelope, allowing for a smaller input motor without sacrificing output torque.

Options…

Following in the tradition of our right angle 750, the Bison 562 features our hollow shaft options with multiple mounting configurations. The 562 is offered with various AC and DC input motors, including 3-phase and inverter duty. The 562's ¾" diameter hollow bore allows for interchangeable shaft designs; including materials made of stainless steel.

This option enables oem's to mount the 562 to various applications and/or competitive units. The hollow bore may also be splined, hex, or designed for other custom direct- coupled drive shafts. Bison's manufacturing expertise guarantees that you receive the gearmotor you need.

Additional Features…

Precision machined aluminum castings vs. competitor's non machined zinc castings. All needle and ball bearing shaft support vs. competitors' sleeve bearing support; All steel, heat treated gearing and pinion shafts; Heavy duty single lip, spring loaded oil seals with lifetime lubrication NOT AVAILABLE FROM STOCK, CUSTOM ORDERS ONLY

SuZhou Asia Pacific Metal Co.,Ltd is a manufacturer and designer specialized in heavy-duty GEAR area in China.Our products cover Spur Gear,Helical Gear,Double Helical Gear,Inner Gear,Internal Ring Gear,Ring Gear,Precision Gear,

SuZhou Asia Pacific Metal Co.,Ltd is a manufacturer and designer specialized in heavy-duty GEAR area in China.Our products cover Spur Gear,Helical Gear,Double Helical Gear,Inner Gear,Internal Ring Gear,Ring Gear,Precision Gear,Metric Gear,Reducer,Gearbox,Sun Gear,Planet Gear,Gear Sleeve,Intermediate Pinion,Annulus Ring Wheel,High-Speed Gear and custom gears Manufacturers.

All these products can be used mining-machinery,metallurgical machinery,port facilities,wind power generation,gearbox,oilfield equipment,rolling machine,huge vertical lathe,plastic machinery,construction machinery,earth moving,crane,quayside container crane,mud pump,shipyard machine tool,aviation,rubber machinery and so on .

Our company has a perfect quality assurance system, obtaining ISO9001:2000 certification, manufacturing products strictly according to international standard, including international standard ISO, United States standard AGMA, Germany standard DIN and Japan standard JIS. At the same time the company boasts a team of excellent technical professionals and outstanding management with responsibility and experience so as to guarantee qualified production.

Our enterprise philosophy is as follow:
Enterprising and harmonious work team;
Professional and efficient production;
High-quality products;
Good service for clients.
We have been working hard at it.
As a professional GEAR manufacturer, we are looking forward to be your good and reliable GEAR supplier, too!

A gear is a component within a transmission device that transmits rotational(旋转的) force to another gear or device. A gear is different from a pulley (滑轮)in that a gear is a round wheel which has linkages ("teeth" or "cogs") that mesh with other gear teeth, allowing force to be fully transferred without slippage. Depending on their construction and arrangement, geared devices can transmit forces at different speeds, torques, or in a different direction, from the power source. Gears are a very useful simple machine. The most common situation is for a gear to mesh with another gear, but a gear can mesh with any device having compatible teeth, such as linear moving racks. A gear's most important feature is that gears of unequal sizes (diameters) can be combined to produce a mechanical advantage, so that the rotational speed and torque(扭矩) of the second gear are different from that of the first. In the context of a particular machine, the term "gear" also refers to one particular arrangement of gears among other arrangements (such as "first gear"). Such arrangements are often given as a ratio, using the number of teeth or gear diameter as units. The term "gear" is also used in non-geared devices which perform equivalent tasks:

"...broadly speaking, a gear refers to a ratio of engine shaft speed to driveshaft speed. Although CVTs change this ratio without using a set of planetary gears, they are still described as having low and high "gears" for the sake of convention."^[1]

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