Gear Racks, Metric Precision Ground Racks-NEW
A NEW series of ISO class 5 rectangular Ground Racks. Gear racks are used to convert rotational motion into linear motion. In theory, a rack is an unrolled gear with an infinite pitch diameter. A rack will mesh with all gears of the same pitch.
These standard components are made from ANSI 1045 steel with a tooth surface induction hardness of HRC 27-32. Stock racks are available in lengths of 200 to 300 mm, and from 64 to 128 teeth. There is also a family of round racks available in module 0.5, 0.75, 0.8 and 1 in ISO class 9 in 304 Stainless Steel. They are identified as the S181YYM Series and are offered in lengths of 202 mm and 305 mm.
In November 2002, QTC added over 9,000 off-the-shelf timing belt pulleys, belts, belt and roller chain tensioners and other power transmission components to our offering. These products designed for use in prototypes or for production applications are featured in our companion catalog Q460.
The 368 page catalog features Econobelt brand timing belts and pulleys in 11 different profiles: MXL, XL, L, HTD3, HTD5, HTD8, T2.5, T5, T10, AT5 and AT10. The belts are made of fiberglass-reinforced neoprene and the pulleys are made of steel, aluminum and nylon.
In addition to the over 3,700 metric gears detailed, this 528-page catalog contains a comprehensive technical reference section entitled "Elements of Gear Technology". The topics covered include the principles of involute gearing, gear dimension calculations, the definition of backlash, plastic gear design, elements of gear accuracy, principles of surface contact, methods of lubrication and methods for noise reduction.
The product section includes detailed specifications of the complete offering of off-the-shelf Spur gears, Helical gears, Screw gears, Ratchets & Pawls, Gear couplings, Worms & Worm Wheels (Standard & Duplex), Ring gears (Internal & External), Involute splines (Internal & External) , Racks (Straight, Helical & Flexible), Miter gears (Straight & Spiral) and Bevel gears (Straight & Spiral). These 3,700+ products are offered in sizes from module 0.5 thru module 10, in materials that include alloy steel, carbon steel, stainless steel, cast iron, aluminum bronze, brass, cast bronze, nylon, and acetal.
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