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171 Aluminum-Acetal Gears The Patented Fairloc® Integral Fastening System

A new series of 84 combination aluminum-acetal gears, manufactured by Sterling Instrument feature the patented Fairloc® integral hub fastening system which eliminates marred shafts. These 20° pressure angle, AGMA Q10 and ISO Class 7 gears are identified as the S1268Z -...M series. They offer the best of both worlds: the noise reduction benefits of acetal rim gear teeth along with the strength of the 2024 aluminum core assembled onto a stainless steel hub. The choice of the Fairloc® rotating component fastening system helps phase adjustment, timing, position adjustment and frequent removal problems with full component support along the entire hub section. These very cost-effective gears are compact, self-contained and offer a small gear hub envelope.

These gears are designed to mate with hubs which accept shaft sizes from .0900" to .2498" in diameter.
The suggested clearance between the bore and the shaft is .0001"/.0008". They are stocked in 72, 64, 48, 32 and 24 Diametral Pitches with a face width of 1/8". Their sizes range from 21 to 210 teeth with O.D's ranging from .958" to 4.083".

The Fairloc® system consists of two slots that are machined into the hub, one oriented radially the other angularly, to create a transverse wedge which remains attached to the solid portion of the hub on one side. The resultant cantilevered clamping section has a tapped hole to accept a cap screw which passes through a clearance hole in the solid portion of the hub, and into a threaded hole in the transverse section. As the socket head cap screw is tightened the cantilevered section clamps the shaft securely. The screw can be tightened and released repeatedly without marring the shaft or affecting its torque transmitting abilities.

Available for order and/or download:

• Request D796 CD - Including Belt & Chain Drives, Shaft Accessories, Bearings, Feed & Idler Rollers, Couplings, Vibration Mounts & Pads, Linear Motion Systems, Hardware, Right Angle Drives, Gearheads, Gearmotors and Clutches.
• Request Today! NEW D805 Master Catalog | Metric Automation & Drive Components - New Stock Drive Products / Sterling Instrument Metric Components Catalog D805 contains product specs for over 40,000 items such as: gears, timing belts, timing belt pulleys, bearings, couplings, gearheads and speed reducers, right angle drives and linear motion systems.
• Catalog D810 | Handbook Of INCH Drive Components 1,520-pages - Master INCH size component catalog
• Shaftloc® Components Catalog - Catalog D160
• Conidrive® Belt Drive Catalog - Catalog DN10
• PowerGrip® TruMotion® Timing Belt Catalog - Catalog D155
• Feed & Idler Rollers - Catalog D150
• Handbook of Fairloc® Components - Catalog D243
• Drive Component Design Textbook - Catalog D757

To View our entire product line including specifications, additional information and pricing and ordering information,
click on the product areas below for more information:

• Bearings
• Belt & Chain Drives: Timing Belts, Pulleys, Ladder Chains & Sprockets
• Brakes & Clutches
• Couplings
• Differentials
• Foot Mounts
• Gears
• Gearheads & Speed Reducers
• Hardware
• Linear Motion Systems
• Miscellaneous Components
• Motors & Gearmotors
• Right Angle Drives
• Shafts & Shaft Accessories
• Universal Joints
• Vibration Mounts

About SDP/SI - Stock Drive Products / Sterling Instrument:

Stock Drive Products (ISO 9001 Registered) and Sterling Instrument (ISO 9001 + AS9100 Registered) operating divisions of Designatronics Incorporated, a company that began in 1960 as a manufacturer of small mechanical products.

The company's four modern manufacturing plants, totaling 148,000 square feet (13,750 square meters), are located on technology-rich Long Island, New York. There, SDP-SI's experienced workforce designs, manufactures and distributes a diverse line of standard and custom, commercial and precision grade components, as well as a full range of electromechanical devices and assemblies.